Vulnerabilities > CVE-2017-6001 - Race Condition vulnerability in Linux Kernel

047910
CVSS 7.0 - HIGH
Attack vector
LOCAL
Attack complexity
HIGH
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
local
high complexity
linux
CWE-362
nessus

Summary

Race condition in kernel/events/core.c in the Linux kernel before 4.9.7 allows local users to gain privileges via a crafted application that makes concurrent perf_event_open system calls for moving a software group into a hardware context. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-6786.

Vulnerable Configurations

Part Description Count
OS
Linux
321

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Leveraging Race Conditions
    This attack targets a race condition occurring when multiple processes access and manipulate the same resource concurrently and the outcome of the execution depends on the particular order in which the access takes place. The attacker can leverage a race condition by "running the race", modifying the resource and modifying the normal execution flow. For instance a race condition can occur while accessing a file, the attacker can trick the system by replacing the original file with his version and cause the system to read the malicious file.
  • Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions
    This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. The typical example is the file access. The attacker can leverage a file access race condition by "running the race", meaning that he would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the attacker could do something such as replace the file and cause an escalation of privilege.

Nessus

  • NASL familyOracleVM Local Security Checks
    NASL idORACLEVM_OVMSA-2017-0056.NASL
    descriptionThe remote OracleVM system is missing necessary patches to address critical security updates : - Revert
    last seen2020-06-01
    modified2020-06-02
    plugin id99162
    published2017-04-03
    reporterThis script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/99162
    titleOracleVM 3.4 : Unbreakable / etc (OVMSA-2017-0056)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The package checks in this plugin were extracted from OracleVM
    # Security Advisory OVMSA-2017-0056.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(99162);
      script_version("3.4");
      script_cvs_date("Date: 2019/09/27 13:00:35");
    
      script_cve_id("CVE-2015-8952", "CVE-2016-10088", "CVE-2016-10147", "CVE-2016-3140", "CVE-2016-3672", "CVE-2016-3951", "CVE-2016-7097", "CVE-2016-7425", "CVE-2016-8399", "CVE-2016-8632", "CVE-2016-8633", "CVE-2016-8645", "CVE-2016-9178", "CVE-2016-9588", "CVE-2016-9644", "CVE-2016-9756", "CVE-2017-2596", "CVE-2017-2636", "CVE-2017-5897", "CVE-2017-5970", "CVE-2017-6001", "CVE-2017-6345", "CVE-2017-7187");
    
      script_name(english:"OracleVM 3.4 : Unbreakable / etc (OVMSA-2017-0056)");
      script_summary(english:"Checks the RPM output for the updated packages.");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote OracleVM host is missing one or more security updates."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "The remote OracleVM system is missing necessary patches to address
    critical security updates :
    
      - Revert 'x86/mm: Expand the exception table logic to
        allow new handling options' (Brian Maly) [Orabug:
        25790387] (CVE-2016-9644)
    
      - Revert 'fix minor infoleak in get_user_ex' (Brian Maly)
        [Orabug: 25790387] (CVE-2016-9644)
    
      - x86/mm: Expand the exception table logic to allow new
        handling options (Tony Luck) [Orabug: 25790387]
        (CVE-2016-9644)
    
      - rebuild bumping release
    
      - net: ping: check minimum size on ICMP header length
        (Kees Cook) [Orabug: 25766898] (CVE-2016-8399)
        (CVE-2016-8399)
    
      - sg_write/bsg_write is not fit to be called under
        KERNEL_DS (Al Viro) [Orabug: 25765436] (CVE-2016-10088)
    
      - scsi: sg: check length passed to SG_NEXT_CMD_LEN (peter
        chang) [Orabug: 25751984] (CVE-2017-7187)
    
      - tty: n_hdlc: get rid of racy n_hdlc.tbuf (Alexander
        Popov) [Orabug: 25696677] (CVE-2017-2636)
    
      - TTY: n_hdlc, fix lockdep false positive (Jiri Slaby)
        [Orabug: 25696677] (CVE-2017-2636)
    
      - If Slot Status indicates changes in both Data Link Layer
        Status and Presence Detect, prioritize the Link status
        change. (Jack Vogel) 
    
      - PCI: pciehp: Leave power indicator on when enabling
        already-enabled slot (Ashok Raj) [Orabug: 25353783]
    
      - firewire: net: guard against rx buffer overflows (Stefan
        Richter) [Orabug: 25451520] (CVE-2016-8633)
    
      - usbnet: cleanup after bind in probe (Oliver Neukum)
        [Orabug: 25463898] (CVE-2016-3951)
    
      - cdc_ncm: do not call usbnet_link_change from
        cdc_ncm_bind (Bj&oslash rn Mork) [Orabug: 25463898]
        (CVE-2016-3951)
    
      - cdc_ncm: Add support for moving NDP to end of NCM frame
        (Enrico Mioso) [Orabug: 25463898] (CVE-2016-3951)
    
      - x86/mm/32: Enable full randomization on i386 and X86_32
        (Hector Marco-Gisbert) [Orabug: 25463918]
        (CVE-2016-3672)
    
      - kvm: fix page struct leak in handle_vmon (Paolo Bonzini)
        [Orabug: 25507133] (CVE-2017-2596)
    
      - crypto: mcryptd - Check mcryptd algorithm compatibility
        (tim) [Orabug: 25507153] (CVE-2016-10147)
    
      - kvm: nVMX: Allow L1 to intercept software exceptions
        (#BP and #OF) (Jim Mattson) [Orabug: 25507188]
        (CVE-2016-9588)
    
      - KVM: x86: drop error recovery in em_jmp_far and
        em_ret_far (Radim Kr&#x10D m&aacute &#x159 ) [Orabug:
        25507213] (CVE-2016-9756)
    
      - tcp: take care of truncations done by sk_filter (Eric
        Dumazet) [Orabug: 25507226] (CVE-2016-8645)
    
      - rose: limit sk_filter trim to payload (Willem de Bruijn)
        [Orabug: 25507226] (CVE-2016-8645)
    
      - tipc: check minimum bearer MTU (Michal Kube&#x10D ek)
        [Orabug: 25507239] (CVE-2016-8632) (CVE-2016-8632)
    
      - fix minor infoleak in get_user_ex (Al Viro) [Orabug:
        25507269] (CVE-2016-9178)
    
      - scsi: arcmsr: Simplify user_len checking (Borislav
        Petkov) [Orabug: 25507319] (CVE-2016-7425)
    
      - scsi: arcmsr: Buffer overflow in arcmsr_iop_message_xfer
        (Dan Carpenter) [Orabug: 25507319] (CVE-2016-7425)
    
      - tmpfs: clear S_ISGID when setting posix ACLs (Gu Zheng)
        [Orabug: 25507341] (CVE-2016-7097) (CVE-2016-7097)
    
      - posix_acl: Clear SGID bit when setting file permissions
        (Jan Kara) [Orabug: 25507341] (CVE-2016-7097)
        (CVE-2016-7097)
    
      - ext2: convert to mbcache2 (Jan Kara) [Orabug: 25512366]
        (CVE-2015-8952)
    
      - ext4: convert to mbcache2 (Jan Kara) [Orabug: 25512366]
        (CVE-2015-8952)
    
      - mbcache2: reimplement mbcache (Jan Kara) [Orabug:
        25512366] (CVE-2015-8952)
    
      - USB: digi_acceleport: do sanity checking for the number
        of ports (Oliver Neukum) [Orabug: 25512466]
        (CVE-2016-3140)
    
      - net/llc: avoid BUG_ON in skb_orphan (Eric Dumazet)
        [Orabug: 25682419] (CVE-2017-6345)
    
      - net/mlx4_core: Disallow creation of RAW QPs on a VF (Eli
        Cohen) 
    
      - ipv4: keep skb->dst around in presence of IP options
        (Eric Dumazet) [Orabug: 25698300] (CVE-2017-5970)
    
      - perf/core: Fix concurrent sys_perf_event_open vs.
        'move_group' race (Peter Zijlstra) [Orabug: 25698751]
        (CVE-2017-6001)
    
      - ip6_gre: fix ip6gre_err invalid reads (Eric Dumazet)
        [Orabug: 25699015] (CVE-2017-5897)
    
      - mpt3sas: Don't spam logs if logging level is 0 (Johannes
        Thumshirn) 
    
      - xen-netfront: cast grant table reference first to type
        int (Dongli Zhang)
    
      - xen-netfront: do not cast grant table reference to
        signed short (Dongli Zhang)"
      );
      # https://oss.oracle.com/pipermail/oraclevm-errata/2017-April/000674.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?32b057e2"
      );
      script_set_attribute(
        attribute:"solution", 
        value:"Update the affected kernel-uek / kernel-uek-firmware packages."
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"true");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:kernel-uek");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:vm:kernel-uek-firmware");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:vm_server:3.4");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2016/04/27");
      script_set_attribute(attribute:"patch_publication_date", value:"2017/04/01");
      script_set_attribute(attribute:"plugin_publication_date", value:"2017/04/03");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"OracleVM Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/OracleVM/release", "Host/OracleVM/rpm-list");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("global_settings.inc");
    include("rpm.inc");
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    release = get_kb_item("Host/OracleVM/release");
    if (isnull(release) || "OVS" >!< release) audit(AUDIT_OS_NOT, "OracleVM");
    if (! preg(pattern:"^OVS" + "3\.4" + "(\.[0-9]|$)", string:release)) audit(AUDIT_OS_NOT, "OracleVM 3.4", "OracleVM " + release);
    if (!get_kb_item("Host/OracleVM/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    cpu = get_kb_item("Host/cpu");
    if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
    if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "OracleVM", cpu);
    if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);
    
    flag = 0;
    if (rpm_check(release:"OVS3.4", reference:"kernel-uek-4.1.12-61.1.33.el6uek")) flag++;
    if (rpm_check(release:"OVS3.4", reference:"kernel-uek-firmware-4.1.12-61.1.33.el6uek")) flag++;
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
      else security_hole(0);
      exit(0);
    }
    else
    {
      tested = pkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kernel-uek / kernel-uek-firmware");
    }
    
  • NASL familyF5 Networks Local Security Checks
    NASL idF5_BIGIP_SOL24578092.NASL
    descriptionRace condition in kernel/events/core.c in the Linux kernel before 4.9.7 allows local users to gain privileges via a crafted application that makes concurrent perf_event_open system calls for moving a software group into a hardware context. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-6786. (CVE-2017-6001) Impact An authenticated attacker may be able to gain an escalation of privileges through a crafted application.
    last seen2020-06-01
    modified2020-06-02
    plugin id127078
    published2019-07-26
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/127078
    titleF5 Networks BIG-IP : Linux kernel vulnerability (K24578092)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from F5 Networks BIG-IP Solution K24578092.
    #
    # The text description of this plugin is (C) F5 Networks.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(127078);
      script_version("1.3");
      script_cvs_date("Date: 2020/01/21");
    
      script_cve_id("CVE-2016-6786", "CVE-2017-6001");
    
      script_name(english:"F5 Networks BIG-IP : Linux kernel vulnerability  (K24578092)");
      script_summary(english:"Checks the BIG-IP version.");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote device is missing a vendor-supplied security patch."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "Race condition in kernel/events/core.c in the Linux kernel before
    4.9.7 allows local users to gain privileges via a crafted application
    that makes concurrent perf_event_open system calls for moving a
    software group into a hardware context. NOTE: this vulnerability
    exists because of an incomplete fix for CVE-2016-6786. (CVE-2017-6001)
    
    Impact
    
    An authenticated attacker may be able to gain an escalation of
    privileges through a crafted application."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://support.f5.com/csp/article/K24578092"
      );
      script_set_attribute(
        attribute:"solution", 
        value:
    "Upgrade to one of the non-vulnerable versions listed in the F5
    Solution K24578092."
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
      script_set_attribute(attribute:"cvss_score_source", value:"CVE-2017-6001");
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
    
      script_set_attribute(attribute:"potential_vulnerability", value:"true");
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_access_policy_manager");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_advanced_firewall_manager");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_application_acceleration_manager");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_application_security_manager");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_application_visibility_and_reporting");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_global_traffic_manager");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_link_controller");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_local_traffic_manager");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_policy_enforcement_manager");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_webaccelerator");
      script_set_attribute(attribute:"cpe", value:"cpe:/h:f5:big-ip");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2016/12/28");
      script_set_attribute(attribute:"patch_publication_date", value:"2018/07/02");
      script_set_attribute(attribute:"plugin_publication_date", value:"2019/07/26");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"F5 Networks Local Security Checks");
    
      script_dependencies("f5_bigip_detect.nbin");
      script_require_keys("Host/local_checks_enabled", "Host/BIG-IP/hotfix", "Host/BIG-IP/modules", "Host/BIG-IP/version", "Settings/ParanoidReport");
    
      exit(0);
    }
    
    
    include("f5_func.inc");
    
    if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    version = get_kb_item("Host/BIG-IP/version");
    if ( ! version ) audit(AUDIT_OS_NOT, "F5 Networks BIG-IP");
    if ( isnull(get_kb_item("Host/BIG-IP/hotfix")) ) audit(AUDIT_KB_MISSING, "Host/BIG-IP/hotfix");
    if ( ! get_kb_item("Host/BIG-IP/modules") ) audit(AUDIT_KB_MISSING, "Host/BIG-IP/modules");
    
    sol = "K24578092";
    vmatrix = make_array();
    
    if (report_paranoia < 2) audit(AUDIT_PARANOID);
    
    # AFM
    vmatrix["AFM"] = make_array();
    vmatrix["AFM"]["affected"  ] = make_list("14.0.0-14.1.0","13.0.0-13.1.1","12.1.0-12.1.4","11.2.1-11.6.4");
    vmatrix["AFM"]["unaffected"] = make_list("15.0.0","14.1.2.2");
    
    # AM
    vmatrix["AM"] = make_array();
    vmatrix["AM"]["affected"  ] = make_list("14.0.0-14.1.0","13.0.0-13.1.1","12.1.0-12.1.4","11.2.1-11.6.4");
    vmatrix["AM"]["unaffected"] = make_list("15.0.0","14.1.2.2");
    
    # APM
    vmatrix["APM"] = make_array();
    vmatrix["APM"]["affected"  ] = make_list("14.0.0-14.1.0","13.0.0-13.1.1","12.1.0-12.1.4","11.2.1-11.6.4");
    vmatrix["APM"]["unaffected"] = make_list("15.0.0","14.1.2.2");
    
    # ASM
    vmatrix["ASM"] = make_array();
    vmatrix["ASM"]["affected"  ] = make_list("14.0.0-14.1.0","13.0.0-13.1.1","12.1.0-12.1.4","11.2.1-11.6.4");
    vmatrix["ASM"]["unaffected"] = make_list("15.0.0","14.1.2.2");
    
    # AVR
    vmatrix["AVR"] = make_array();
    vmatrix["AVR"]["affected"  ] = make_list("14.0.0-14.1.0","13.0.0-13.1.1","12.1.0-12.1.4","11.2.1-11.6.4");
    vmatrix["AVR"]["unaffected"] = make_list("15.0.0","14.1.2.2");
    
    # GTM
    vmatrix["GTM"] = make_array();
    vmatrix["GTM"]["affected"  ] = make_list("14.0.0-14.1.0","13.0.0-13.1.1","12.1.0-12.1.4","11.2.1-11.6.4");
    vmatrix["GTM"]["unaffected"] = make_list("15.0.0","14.1.2.2");
    
    # LC
    vmatrix["LC"] = make_array();
    vmatrix["LC"]["affected"  ] = make_list("14.0.0-14.1.0","13.0.0-13.1.1","12.1.0-12.1.4","11.2.1-11.6.4");
    vmatrix["LC"]["unaffected"] = make_list("15.0.0","14.1.2.2");
    
    # LTM
    vmatrix["LTM"] = make_array();
    vmatrix["LTM"]["affected"  ] = make_list("14.0.0-14.1.0","13.0.0-13.1.1","12.1.0-12.1.4","11.2.1-11.6.4");
    vmatrix["LTM"]["unaffected"] = make_list("15.0.0","14.1.2.2");
    
    # PEM
    vmatrix["PEM"] = make_array();
    vmatrix["PEM"]["affected"  ] = make_list("14.0.0-14.1.0","13.0.0-13.1.1","12.1.0-12.1.4","11.2.1-11.6.4");
    vmatrix["PEM"]["unaffected"] = make_list("15.0.0","14.1.2.2");
    
    # WAM
    vmatrix["WAM"] = make_array();
    vmatrix["WAM"]["affected"  ] = make_list("14.0.0-14.1.0","13.0.0-13.1.1","12.1.0-12.1.4","11.2.1-11.6.4");
    vmatrix["WAM"]["unaffected"] = make_list("15.0.0","14.1.2.2");
    
    
    if (bigip_is_affected(vmatrix:vmatrix, sol:sol))
    {
      if (report_verbosity > 0) security_hole(port:0, extra:bigip_report_get());
      else security_hole(0);
      exit(0);
    }
    else
    {
      tested = bigip_get_tested_modules();
      audit_extra = "For BIG-IP module(s) " + tested + ",";
      if (tested) audit(AUDIT_INST_VER_NOT_VULN, audit_extra, version);
      else audit(AUDIT_HOST_NOT, "running any of the affected modules");
    }
    
  • NASL familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-3312-1.NASL
    descriptionIt was discovered that the netfilter netlink implementation in the Linux kernel did not properly validate batch messages. A local attacker with the CAP_NET_ADMIN capability could use this to expose sensitive information or cause a denial of service. (CVE-2016-7917) Qian Zhang discovered a heap-based buffer overflow in the tipc_msg_build() function in the Linux kernel. A local attacker could use to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. (CVE-2016-8632) It was discovered that the keyring implementation in the Linux kernel in some situations did not prevent special internal keyrings from being joined by userspace keyrings. A privileged local attacker could use this to bypass module verification. (CVE-2016-9604) Dmitry Vyukov discovered that KVM implementation in the Linux kernel improperly emulated the VMXON instruction. A local attacker in a guest OS could use this to cause a denial of service (memory consumption) in the host OS. (CVE-2017-2596) Daniel Jiang discovered that a race condition existed in the ipv4 ping socket implementation in the Linux kernel. A local privileged attacker could use this to cause a denial of service (system crash). (CVE-2017-2671) Di Shen discovered that a race condition existed in the perf subsystem of the Linux kernel. A local attacker could use this to cause a denial of service or possibly gain administrative privileges. (CVE-2017-6001) Eric Biggers discovered a memory leak in the keyring implementation in the Linux kernel. A local attacker could use this to cause a denial of service (memory consumption). (CVE-2017-7472) Sabrina Dubroca discovered that the asynchronous cryptographic hash (ahash) implementation in the Linux kernel did not properly handle a full request queue. A local attacker could use this to cause a denial of service (infinite recursion). (CVE-2017-7618) Tuomas Haanpaa and Ari Kauppi discovered that the NFSv2 and NFSv3 server implementations in the Linux kernel did not properly handle certain long RPC replies. A remote attacker could use this to cause a denial of service (system crash). (CVE-2017-7645) Tommi Rantala and Brad Spengler discovered that the memory manager in the Linux kernel did not properly enforce the CONFIG_STRICT_DEVMEM protection mechanism. A local attacker with access to /dev/mem could use this to expose sensitive information or possibly execute arbitrary code. (CVE-2017-7889) Tuomas Haanpaa and Ari Kauppi discovered that the NFSv2 and NFSv3 server implementations in the Linux kernel did not properly check for the end of buffer. A remote attacker could use this to craft requests that cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-7895) It was discovered that a use-after-free vulnerability existed in the device driver for XCeive xc2028/xc3028 tuners in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2016-7913) Vlad Tsyrklevich discovered an integer overflow vulnerability in the VFIO PCI driver for the Linux kernel. A local attacker with access to a vfio PCI device file could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2016-9083, CVE-2016-9084). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id100664
    published2017-06-07
    reporterUbuntu Security Notice (C) 2017-2019 Canonical, Inc. / NASL script (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/100664
    titleUbuntu 16.04 LTS : linux, linux-aws, linux-gke, linux-raspi2, linux-snapdragon vulnerabilities (USN-3312-1)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from Ubuntu Security Notice USN-3312-1. The text 
    # itself is copyright (C) Canonical, Inc. See 
    # <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
    # trademark of Canonical, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(100664);
      script_version("3.10");
      script_cvs_date("Date: 2019/09/18 12:31:47");
    
      script_cve_id("CVE-2016-7913", "CVE-2016-7917", "CVE-2016-8632", "CVE-2016-9083", "CVE-2016-9084", "CVE-2016-9604", "CVE-2017-2596", "CVE-2017-2671", "CVE-2017-6001", "CVE-2017-7472", "CVE-2017-7618", "CVE-2017-7645", "CVE-2017-7889", "CVE-2017-7895");
      script_xref(name:"USN", value:"3312-1");
    
      script_name(english:"Ubuntu 16.04 LTS : linux, linux-aws, linux-gke, linux-raspi2, linux-snapdragon vulnerabilities (USN-3312-1)");
      script_summary(english:"Checks dpkg output for updated packages.");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:
    "The remote Ubuntu host is missing one or more security-related
    patches."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "It was discovered that the netfilter netlink implementation in the
    Linux kernel did not properly validate batch messages. A local
    attacker with the CAP_NET_ADMIN capability could use this to expose
    sensitive information or cause a denial of service. (CVE-2016-7917)
    
    Qian Zhang discovered a heap-based buffer overflow in the
    tipc_msg_build() function in the Linux kernel. A local attacker could
    use to cause a denial of service (system crash) or possibly execute
    arbitrary code with administrative privileges. (CVE-2016-8632)
    
    It was discovered that the keyring implementation in the Linux kernel
    in some situations did not prevent special internal keyrings from
    being joined by userspace keyrings. A privileged local attacker could
    use this to bypass module verification. (CVE-2016-9604)
    
    Dmitry Vyukov discovered that KVM implementation in the Linux kernel
    improperly emulated the VMXON instruction. A local attacker in a guest
    OS could use this to cause a denial of service (memory consumption) in
    the host OS. (CVE-2017-2596)
    
    Daniel Jiang discovered that a race condition existed in the ipv4 ping
    socket implementation in the Linux kernel. A local privileged attacker
    could use this to cause a denial of service (system crash).
    (CVE-2017-2671)
    
    Di Shen discovered that a race condition existed in the perf subsystem
    of the Linux kernel. A local attacker could use this to cause a denial
    of service or possibly gain administrative privileges. (CVE-2017-6001)
    
    Eric Biggers discovered a memory leak in the keyring implementation in
    the Linux kernel. A local attacker could use this to cause a denial of
    service (memory consumption). (CVE-2017-7472)
    
    Sabrina Dubroca discovered that the asynchronous cryptographic hash
    (ahash) implementation in the Linux kernel did not properly handle a
    full request queue. A local attacker could use this to cause a denial
    of service (infinite recursion). (CVE-2017-7618)
    
    Tuomas Haanpaa and Ari Kauppi discovered that the NFSv2 and NFSv3
    server implementations in the Linux kernel did not properly handle
    certain long RPC replies. A remote attacker could use this to cause a
    denial of service (system crash). (CVE-2017-7645)
    
    Tommi Rantala and Brad Spengler discovered that the memory manager in
    the Linux kernel did not properly enforce the CONFIG_STRICT_DEVMEM
    protection mechanism. A local attacker with access to /dev/mem could
    use this to expose sensitive information or possibly execute arbitrary
    code. (CVE-2017-7889)
    
    Tuomas Haanpaa and Ari Kauppi discovered that the NFSv2 and NFSv3
    server implementations in the Linux kernel did not properly check for
    the end of buffer. A remote attacker could use this to craft requests
    that cause a denial of service (system crash) or possibly execute
    arbitrary code. (CVE-2017-7895)
    
    It was discovered that a use-after-free vulnerability existed in the
    device driver for XCeive xc2028/xc3028 tuners in the Linux kernel. A
    local attacker could use this to cause a denial of service (system
    crash) or possibly execute arbitrary code. (CVE-2016-7913)
    
    Vlad Tsyrklevich discovered an integer overflow vulnerability in the
    VFIO PCI driver for the Linux kernel. A local attacker with access to
    a vfio PCI device file could use this to cause a denial of service
    (system crash) or possibly execute arbitrary code. (CVE-2016-9083,
    CVE-2016-9084).
    
    Note that Tenable Network Security has extracted the preceding
    description block directly from the Ubuntu security advisory. Tenable
    has attempted to automatically clean and format it as much as possible
    without introducing additional issues."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://usn.ubuntu.com/3312-1/"
      );
      script_set_attribute(attribute:"solution", value:"Update the affected packages.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"true");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4-aws");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4-generic");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4-generic-lpae");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4-gke");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4-lowlatency");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4-raspi2");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.4-snapdragon");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-aws");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-generic");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-lpae");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-gke");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-lowlatency");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-raspi2");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-snapdragon");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-virtual");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2016/11/16");
      script_set_attribute(attribute:"patch_publication_date", value:"2017/06/06");
      script_set_attribute(attribute:"plugin_publication_date", value:"2017/06/07");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"Ubuntu Security Notice (C) 2017-2019 Canonical, Inc. / NASL script (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"Ubuntu Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl", "linux_alt_patch_detect.nasl");
      script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("ubuntu.inc");
    include("ksplice.inc");
    
    if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    release = get_kb_item("Host/Ubuntu/release");
    if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
    release = chomp(release);
    if (! preg(pattern:"^(16\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 16.04", "Ubuntu " + release);
    if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    cpu = get_kb_item("Host/cpu");
    if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
    if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu);
    
    if (get_one_kb_item("Host/ksplice/kernel-cves"))
    {
      rm_kb_item(name:"Host/uptrack-uname-r");
      cve_list = make_list("CVE-2016-7913", "CVE-2016-7917", "CVE-2016-8632", "CVE-2016-9083", "CVE-2016-9084", "CVE-2016-9604", "CVE-2017-2596", "CVE-2017-2671", "CVE-2017-6001", "CVE-2017-7472", "CVE-2017-7618", "CVE-2017-7645", "CVE-2017-7889", "CVE-2017-7895");
      if (ksplice_cves_check(cve_list))
      {
        audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for USN-3312-1");
      }
      else
      {
        _ubuntu_report = ksplice_reporting_text();
      }
    }
    
    flag = 0;
    
    if (ubuntu_check(osver:"16.04", pkgname:"linux-image-4.4.0-1014-gke", pkgver:"4.4.0-1014.14")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"linux-image-4.4.0-1018-aws", pkgver:"4.4.0-1018.27")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"linux-image-4.4.0-1057-raspi2", pkgver:"4.4.0-1057.64")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"linux-image-4.4.0-1059-snapdragon", pkgver:"4.4.0-1059.63")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"linux-image-4.4.0-79-generic", pkgver:"4.4.0-79.100")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"linux-image-4.4.0-79-generic-lpae", pkgver:"4.4.0-79.100")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"linux-image-4.4.0-79-lowlatency", pkgver:"4.4.0-79.100")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"linux-image-aws", pkgver:"4.4.0.1018.21")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"linux-image-generic", pkgver:"4.4.0.79.85")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"linux-image-generic-lpae", pkgver:"4.4.0.79.85")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"linux-image-gke", pkgver:"4.4.0.1014.16")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"linux-image-lowlatency", pkgver:"4.4.0.79.85")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"linux-image-raspi2", pkgver:"4.4.0.1057.58")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"linux-image-snapdragon", pkgver:"4.4.0.1059.52")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"linux-image-virtual", pkgver:"4.4.0.79.85")) flag++;
    
    if (flag)
    {
      security_report_v4(
        port       : 0,
        severity   : SECURITY_HOLE,
        extra      : ubuntu_report_get()
      );
      exit(0);
    }
    else
    {
      tested = ubuntu_pkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "linux-image-4.4-aws / linux-image-4.4-generic / etc");
    }
    
  • NASL familyOracle Linux Local Security Checks
    NASL idORACLELINUX_ELSA-2017-3533.NASL
    descriptionDescription of changes: [4.1.12-61.1.33.el7uek] - Revert
    last seen2020-06-01
    modified2020-06-02
    plugin id99159
    published2017-04-03
    reporterThis script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/99159
    titleOracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3533)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from Oracle Linux Security Advisory ELSA-2017-3533.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(99159);
      script_version("3.10");
      script_cvs_date("Date: 2019/09/27 13:00:38");
    
      script_cve_id("CVE-2015-8952", "CVE-2016-10088", "CVE-2016-10147", "CVE-2016-3140", "CVE-2016-3672", "CVE-2016-3951", "CVE-2016-7097", "CVE-2016-7425", "CVE-2016-8399", "CVE-2016-8632", "CVE-2016-8633", "CVE-2016-8645", "CVE-2016-9178", "CVE-2016-9588", "CVE-2016-9644", "CVE-2016-9756", "CVE-2017-2596", "CVE-2017-2636", "CVE-2017-5897", "CVE-2017-5970", "CVE-2017-6001", "CVE-2017-6345", "CVE-2017-7187");
    
      script_name(english:"Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3533)");
      script_summary(english:"Checks rpm output for the updated packages");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote Oracle Linux host is missing one or more security updates."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "Description of changes:
    
    [4.1.12-61.1.33.el7uek]
    - Revert 'x86/mm: Expand the exception table logic to allow new handling 
    options' (Brian Maly)  [Orabug: 25790387]  {CVE-2016-9644}
    - Revert 'fix minor infoleak in get_user_ex()' (Brian Maly)  [Orabug: 
    25790387]  {CVE-2016-9644}
    
    [4.1.12-61.1.32.el7uek]
    - x86/mm: Expand the exception table logic to allow new handling options 
    (Tony Luck)  [Orabug: 25790387]  {CVE-2016-9644}
    
    [4.1.12-61.1.31.el7uek]
    - rebuild bumping release
    
    [4.1.12-61.1.30.el7uek]
    - net: ping: check minimum size on ICMP header length (Kees Cook) 
    [Orabug: 25766898]  {CVE-2016-8399} {CVE-2016-8399}
    - sg_write()/bsg_write() is not fit to be called under KERNEL_DS (Al 
    Viro)  [Orabug: 25765436]  {CVE-2016-10088}
    - scsi: sg: check length passed to SG_NEXT_CMD_LEN (peter chang) 
    [Orabug: 25751984]  {CVE-2017-7187}
    
    [4.1.12-61.1.29.el7uek]
    - tty: n_hdlc: get rid of racy n_hdlc.tbuf (Alexander Popov)  [Orabug: 
    25696677]  {CVE-2017-2636}
    - TTY: n_hdlc, fix lockdep false positive (Jiri Slaby)  [Orabug: 
    25696677]  {CVE-2017-2636}
    - If Slot Status indicates changes in both Data Link Layer Status and 
    Presence Detect, prioritize the Link status change. (Jack Vogel) 
    [Orabug: 25353783]
    - PCI: pciehp: Leave power indicator on when enabling already-enabled 
    slot (Ashok Raj)  [Orabug: 25353783]
    - firewire: net: guard against rx buffer overflows (Stefan Richter) 
    [Orabug: 25451520]  {CVE-2016-8633}
    - usbnet: cleanup after bind() in probe() (Oliver Neukum)  [Orabug: 
    25463898]  {CVE-2016-3951}
    - cdc_ncm: do not call usbnet_link_change from cdc_ncm_bind (Bj&oslash rn Mork) 
      [Orabug: 25463898]  {CVE-2016-3951}
    - cdc_ncm: Add support for moving NDP to end of NCM frame (Enrico Mioso) 
      [Orabug: 25463898]  {CVE-2016-3951}
    - x86/mm/32: Enable full randomization on i386 and X86_32 (Hector 
    Marco-Gisbert)  [Orabug: 25463918]  {CVE-2016-3672}
    - kvm: fix page struct leak in handle_vmon (Paolo Bonzini)  [Orabug: 
    25507133]  {CVE-2017-2596}
    - crypto: mcryptd - Check mcryptd algorithm compatibility (tim) 
    [Orabug: 25507153]  {CVE-2016-10147}
    - kvm: nVMX: Allow L1 to intercept software exceptions (#BP and #OF) 
    (Jim Mattson)  [Orabug: 25507188]  {CVE-2016-9588}
    - KVM: x86: drop error recovery in em_jmp_far and em_ret_far (Radim 
    Kr&#x10D m&aacute &#x159 )  [Orabug: 25507213]  {CVE-2016-9756}
    - tcp: take care of truncations done by sk_filter() (Eric Dumazet) 
    [Orabug: 25507226]  {CVE-2016-8645}
    - rose: limit sk_filter trim to payload (Willem de Bruijn)  [Orabug: 
    25507226]  {CVE-2016-8645}
    - tipc: check minimum bearer MTU (Michal Kube&#x10D ek)  [Orabug: 25507239] 
    {CVE-2016-8632} {CVE-2016-8632}
    - fix minor infoleak in get_user_ex() (Al Viro)  [Orabug: 25507269] 
    {CVE-2016-9178}
    - scsi: arcmsr: Simplify user_len checking (Borislav Petkov)  [Orabug: 
    25507319]  {CVE-2016-7425}
    - scsi: arcmsr: Buffer overflow in arcmsr_iop_message_xfer() (Dan 
    Carpenter)  [Orabug: 25507319]  {CVE-2016-7425}
    - tmpfs: clear S_ISGID when setting posix ACLs (Gu Zheng)  [Orabug: 
    25507341]  {CVE-2016-7097} {CVE-2016-7097}
    - posix_acl: Clear SGID bit when setting file permissions (Jan Kara) 
    [Orabug: 25507341]  {CVE-2016-7097} {CVE-2016-7097}
    - ext2: convert to mbcache2 (Jan Kara)  [Orabug: 25512366]  {CVE-2015-8952}
    - ext4: convert to mbcache2 (Jan Kara)  [Orabug: 25512366]  {CVE-2015-8952}
    - mbcache2: reimplement mbcache (Jan Kara)  [Orabug: 25512366] 
    {CVE-2015-8952}
    - USB: digi_acceleport: do sanity checking for the number of ports 
    (Oliver Neukum)  [Orabug: 25512466]  {CVE-2016-3140}
    - net/llc: avoid BUG_ON() in skb_orphan() (Eric Dumazet)  [Orabug: 
    25682419]  {CVE-2017-6345}
    - net/mlx4_core: Disallow creation of RAW QPs on a VF (Eli Cohen) 
    [Orabug: 25697847]
    - ipv4: keep skb->dst around in presence of IP options (Eric Dumazet) 
    [Orabug: 25698300]  {CVE-2017-5970}
    - perf/core: Fix concurrent sys_perf_event_open() vs. 'move_group' race 
    (Peter Zijlstra)  [Orabug: 25698751]  {CVE-2017-6001}
    - ip6_gre: fix ip6gre_err() invalid reads (Eric Dumazet)  [Orabug: 
    25699015]  {CVE-2017-5897}
    - mpt3sas: Don't spam logs if logging level is 0 (Johannes Thumshirn) 
    [Orabug: 25699035]
    - xen-netfront: cast grant table reference first to type int (Dongli 
    Zhang)
    - xen-netfront: do not cast grant table reference to signed short 
    (Dongli Zhang)"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://oss.oracle.com/pipermail/el-errata/2017-April/006815.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://oss.oracle.com/pipermail/el-errata/2017-April/006816.html"
      );
      script_set_attribute(
        attribute:"solution", 
        value:"Update the affected unbreakable enterprise kernel packages."
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"true");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:dtrace-modules-4.1.12-61.1.33.el6uek");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:dtrace-modules-4.1.12-61.1.33.el7uek");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-debug");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-debug-devel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-devel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-doc");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-firmware");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:6");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:7");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2016/04/27");
      script_set_attribute(attribute:"patch_publication_date", value:"2017/04/01");
      script_set_attribute(attribute:"plugin_publication_date", value:"2017/04/03");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"Oracle Linux Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl", "linux_alt_patch_detect.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/rpm-list");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("global_settings.inc");
    include("rpm.inc");
    include("ksplice.inc");
    
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    if (!get_kb_item("Host/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux");
    release = get_kb_item("Host/RedHat/release");
    if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux");
    os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
    if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux");
    os_ver = os_ver[1];
    if (! preg(pattern:"^(6|7)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 6 / 7", "Oracle Linux " + os_ver);
    
    if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    cpu = get_kb_item("Host/cpu");
    if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
    if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Oracle Linux", cpu);
    if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);
    
    if (get_one_kb_item("Host/ksplice/kernel-cves"))
    {
      rm_kb_item(name:"Host/uptrack-uname-r");
      cve_list = make_list("CVE-2015-8952", "CVE-2016-10088", "CVE-2016-10147", "CVE-2016-3140", "CVE-2016-3672", "CVE-2016-3951", "CVE-2016-7097", "CVE-2016-7425", "CVE-2016-8399", "CVE-2016-8632", "CVE-2016-8633", "CVE-2016-8645", "CVE-2016-9178", "CVE-2016-9588", "CVE-2016-9644", "CVE-2016-9756", "CVE-2017-2596", "CVE-2017-2636", "CVE-2017-5897", "CVE-2017-5970", "CVE-2017-6001", "CVE-2017-6345", "CVE-2017-7187");  
      if (ksplice_cves_check(cve_list))
      {
        audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for ELSA-2017-3533");
      }
      else
      {
        __rpm_report = ksplice_reporting_text();
      }
    }
    
    kernel_major_minor = get_kb_item("Host/uname/major_minor");
    if (empty_or_null(kernel_major_minor)) exit(1, "Unable to determine kernel major-minor level.");
    expected_kernel_major_minor = "4.1";
    if (kernel_major_minor != expected_kernel_major_minor)
      audit(AUDIT_OS_NOT, "running kernel level " + expected_kernel_major_minor + ", it is running kernel level " + kernel_major_minor);
    
    flag = 0;
    if (rpm_check(release:"EL6", cpu:"x86_64", reference:"dtrace-modules-4.1.12-61.1.33.el6uek-0.5.3-2.el6")) flag++;
    if (rpm_exists(release:"EL6", rpm:"kernel-uek-4.1.12") && rpm_check(release:"EL6", cpu:"x86_64", reference:"kernel-uek-4.1.12-61.1.33.el6uek")) flag++;
    if (rpm_exists(release:"EL6", rpm:"kernel-uek-debug-4.1.12") && rpm_check(release:"EL6", cpu:"x86_64", reference:"kernel-uek-debug-4.1.12-61.1.33.el6uek")) flag++;
    if (rpm_exists(release:"EL6", rpm:"kernel-uek-debug-devel-4.1.12") && rpm_check(release:"EL6", cpu:"x86_64", reference:"kernel-uek-debug-devel-4.1.12-61.1.33.el6uek")) flag++;
    if (rpm_exists(release:"EL6", rpm:"kernel-uek-devel-4.1.12") && rpm_check(release:"EL6", cpu:"x86_64", reference:"kernel-uek-devel-4.1.12-61.1.33.el6uek")) flag++;
    if (rpm_exists(release:"EL6", rpm:"kernel-uek-doc-4.1.12") && rpm_check(release:"EL6", cpu:"x86_64", reference:"kernel-uek-doc-4.1.12-61.1.33.el6uek")) flag++;
    if (rpm_exists(release:"EL6", rpm:"kernel-uek-firmware-4.1.12") && rpm_check(release:"EL6", cpu:"x86_64", reference:"kernel-uek-firmware-4.1.12-61.1.33.el6uek")) flag++;
    
    if (rpm_check(release:"EL7", cpu:"x86_64", reference:"dtrace-modules-4.1.12-61.1.33.el7uek-0.5.3-2.el7")) flag++;
    if (rpm_exists(release:"EL7", rpm:"kernel-uek-4.1.12") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-4.1.12-61.1.33.el7uek")) flag++;
    if (rpm_exists(release:"EL7", rpm:"kernel-uek-debug-4.1.12") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-debug-4.1.12-61.1.33.el7uek")) flag++;
    if (rpm_exists(release:"EL7", rpm:"kernel-uek-debug-devel-4.1.12") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-debug-devel-4.1.12-61.1.33.el7uek")) flag++;
    if (rpm_exists(release:"EL7", rpm:"kernel-uek-devel-4.1.12") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-devel-4.1.12-61.1.33.el7uek")) flag++;
    if (rpm_exists(release:"EL7", rpm:"kernel-uek-doc-4.1.12") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-doc-4.1.12-61.1.33.el7uek")) flag++;
    if (rpm_exists(release:"EL7", rpm:"kernel-uek-firmware-4.1.12") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-uek-firmware-4.1.12-61.1.33.el7uek")) flag++;
    
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
      else security_hole(0);
      exit(0);
    }
    else
    {
      tested = pkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "affected kernel");
    }
    
  • NASL familyOracle Linux Local Security Checks
    NASL idORACLELINUX_ELSA-2017-1842.NASL
    descriptionFrom Red Hat Security Advisory 2017:1842 : An update for kernel is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es) : * An use-after-free flaw was found in the Linux kernel which enables a race condition in the L2TPv3 IP Encapsulation feature. A local user could use this flaw to escalate their privileges or crash the system. (CVE-2016-10200, Important) * A flaw was found that can be triggered in keyring_search_iterator in keyring.c if type->match is NULL. A local user could use this flaw to crash the system or, potentially, escalate their privileges. (CVE-2017-2647, Important) * It was found that the NFSv4 server in the Linux kernel did not properly validate layout type when processing NFSv4 pNFS LAYOUTGET and GETDEVICEINFO operands. A remote attacker could use this flaw to soft-lockup the system and thus cause denial of service. (CVE-2017-8797, Important) This update also fixes multiple Moderate and Low impact security issues : * CVE-2015-8839, CVE-2015-8970, CVE-2016-9576, CVE-2016-7042, CVE-2016-7097, CVE-2016-8645, CVE-2016-9576, CVE-2016-9588, CVE-2016-9806, CVE-2016-10088, CVE-2016-10147, CVE-2017-2596, CVE-2017-2671, CVE-2017-5970, CVE-2017-6001, CVE-2017-6951, CVE-2017-7187, CVE-2017-7616, CVE-2017-7889, CVE-2017-8890, CVE-2017-9074, CVE-2017-8890, CVE-2017-9075, CVE-2017-8890, CVE-2017-9076, CVE-2017-8890, CVE-2017-9077, CVE-2017-9242, CVE-2014-7970, CVE-2014-7975, CVE-2016-6213, CVE-2016-9604, CVE-2016-9685 Documentation for these issues is available from the Release Notes document linked from the References section. Red Hat would like to thank Igor Redko (Virtuozzo) and Andrey Ryabinin (Virtuozzo) for reporting CVE-2017-2647; Igor Redko (Virtuozzo) and Vasily Averin (Virtuozzo) for reporting CVE-2015-8970; Marco Grassi for reporting CVE-2016-8645; and Dmitry Vyukov (Google Inc.) for reporting CVE-2017-2596. The CVE-2016-7042 issue was discovered by Ondrej Kozina (Red Hat); the CVE-2016-7097 issue was discovered by Andreas Gruenbacher (Red Hat) and Jan Kara (SUSE); the CVE-2016-6213 and CVE-2016-9685 issues were discovered by Qian Cai (Red Hat); and the CVE-2016-9604 issue was discovered by David Howells (Red Hat). Additional Changes : For detailed information on other changes in this release, see the Red Hat Enterprise Linux 7.4 Release Notes linked from the References section.
    last seen2020-06-01
    modified2020-06-02
    plugin id102281
    published2017-08-09
    reporterThis script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/102281
    titleOracle Linux 7 : kernel (ELSA-2017-1842) (Stack Clash)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from Red Hat Security Advisory RHSA-2017:1842 and 
    # Oracle Linux Security Advisory ELSA-2017-1842 respectively.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(102281);
      script_version("3.13");
      script_cvs_date("Date: 2019/09/27 13:00:38");
    
      script_cve_id("CVE-2014-7970", "CVE-2014-7975", "CVE-2015-8839", "CVE-2015-8970", "CVE-2016-10088", "CVE-2016-10147", "CVE-2016-10200", "CVE-2016-10741", "CVE-2016-6213", "CVE-2016-7042", "CVE-2016-7097", "CVE-2016-8645", "CVE-2016-9576", "CVE-2016-9588", "CVE-2016-9604", "CVE-2016-9685", "CVE-2016-9806", "CVE-2017-1000379", "CVE-2017-2584", "CVE-2017-2596", "CVE-2017-2647", "CVE-2017-2671", "CVE-2017-5551", "CVE-2017-5970", "CVE-2017-6001", "CVE-2017-6951", "CVE-2017-7187", "CVE-2017-7495", "CVE-2017-7616", "CVE-2017-7889", "CVE-2017-8797", "CVE-2017-8890", "CVE-2017-9074", "CVE-2017-9075", "CVE-2017-9076", "CVE-2017-9077", "CVE-2017-9242");
      script_xref(name:"RHSA", value:"2017:1842");
    
      script_name(english:"Oracle Linux 7 : kernel (ELSA-2017-1842) (Stack Clash)");
      script_summary(english:"Checks rpm output for the updated packages");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote Oracle Linux host is missing one or more security updates."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "From Red Hat Security Advisory 2017:1842 :
    
    An update for kernel is now available for Red Hat Enterprise Linux 7.
    
    Red Hat Product Security has rated this update as having a security
    impact of Important. A Common Vulnerability Scoring System (CVSS) base
    score, which gives a detailed severity rating, is available for each
    vulnerability from the CVE link(s) in the References section.
    
    The kernel packages contain the Linux kernel, the core of any Linux
    operating system.
    
    Security Fix(es) :
    
    * An use-after-free flaw was found in the Linux kernel which enables a
    race condition in the L2TPv3 IP Encapsulation feature. A local user
    could use this flaw to escalate their privileges or crash the system.
    (CVE-2016-10200, Important)
    
    * A flaw was found that can be triggered in keyring_search_iterator in
    keyring.c if type->match is NULL. A local user could use this flaw to
    crash the system or, potentially, escalate their privileges.
    (CVE-2017-2647, Important)
    
    * It was found that the NFSv4 server in the Linux kernel did not
    properly validate layout type when processing NFSv4 pNFS LAYOUTGET and
    GETDEVICEINFO operands. A remote attacker could use this flaw to
    soft-lockup the system and thus cause denial of service.
    (CVE-2017-8797, Important)
    
    This update also fixes multiple Moderate and Low impact security
    issues :
    
    * CVE-2015-8839, CVE-2015-8970, CVE-2016-9576, CVE-2016-7042,
    CVE-2016-7097, CVE-2016-8645, CVE-2016-9576, CVE-2016-9588,
    CVE-2016-9806, CVE-2016-10088, CVE-2016-10147, CVE-2017-2596,
    CVE-2017-2671, CVE-2017-5970, CVE-2017-6001, CVE-2017-6951,
    CVE-2017-7187, CVE-2017-7616, CVE-2017-7889, CVE-2017-8890,
    CVE-2017-9074, CVE-2017-8890, CVE-2017-9075, CVE-2017-8890,
    CVE-2017-9076, CVE-2017-8890, CVE-2017-9077, CVE-2017-9242,
    CVE-2014-7970, CVE-2014-7975, CVE-2016-6213, CVE-2016-9604,
    CVE-2016-9685
    
    Documentation for these issues is available from the Release Notes
    document linked from the References section.
    
    Red Hat would like to thank Igor Redko (Virtuozzo) and Andrey Ryabinin
    (Virtuozzo) for reporting CVE-2017-2647; Igor Redko (Virtuozzo) and
    Vasily Averin (Virtuozzo) for reporting CVE-2015-8970; Marco Grassi
    for reporting CVE-2016-8645; and Dmitry Vyukov (Google Inc.) for
    reporting CVE-2017-2596. The CVE-2016-7042 issue was discovered by
    Ondrej Kozina (Red Hat); the CVE-2016-7097 issue was discovered by
    Andreas Gruenbacher (Red Hat) and Jan Kara (SUSE); the CVE-2016-6213
    and CVE-2016-9685 issues were discovered by Qian Cai (Red Hat); and
    the CVE-2016-9604 issue was discovered by David Howells (Red Hat).
    
    Additional Changes :
    
    For detailed information on other changes in this release, see the Red
    Hat Enterprise Linux 7.4 Release Notes linked from the References
    section."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://oss.oracle.com/pipermail/el-errata/2017-August/007073.html"
      );
      script_set_attribute(
        attribute:"solution", 
        value:"Update the affected kernel packages."
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"true");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-abi-whitelists");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-devel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-devel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-doc");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-headers");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-tools");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-tools-libs");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-tools-libs-devel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:perf");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:python-perf");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:7");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2014/10/13");
      script_set_attribute(attribute:"patch_publication_date", value:"2017/08/08");
      script_set_attribute(attribute:"plugin_publication_date", value:"2017/08/09");
      script_set_attribute(attribute:"in_the_news", value:"true");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"Oracle Linux Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl", "linux_alt_patch_detect.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/rpm-list");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("global_settings.inc");
    include("rpm.inc");
    include("ksplice.inc");
    
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    if (!get_kb_item("Host/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux");
    release = get_kb_item("Host/RedHat/release");
    if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux");
    os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
    if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux");
    os_ver = os_ver[1];
    if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 7", "Oracle Linux " + os_ver);
    
    if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    cpu = get_kb_item("Host/cpu");
    if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
    if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Oracle Linux", cpu);
    if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);
    
    if (get_one_kb_item("Host/ksplice/kernel-cves"))
    {
      rm_kb_item(name:"Host/uptrack-uname-r");
      cve_list = make_list("CVE-2014-7970", "CVE-2014-7975", "CVE-2015-8839", "CVE-2015-8970", "CVE-2016-10088", "CVE-2016-10147", "CVE-2016-10200", "CVE-2016-10741", "CVE-2016-6213", "CVE-2016-7042", "CVE-2016-7097", "CVE-2016-8645", "CVE-2016-9576", "CVE-2016-9588", "CVE-2016-9604", "CVE-2016-9685", "CVE-2016-9806", "CVE-2017-1000379", "CVE-2017-2584", "CVE-2017-2596", "CVE-2017-2647", "CVE-2017-2671", "CVE-2017-5551", "CVE-2017-5970", "CVE-2017-6001", "CVE-2017-6951", "CVE-2017-7187", "CVE-2017-7495", "CVE-2017-7616", "CVE-2017-7889", "CVE-2017-8797", "CVE-2017-8890", "CVE-2017-9074", "CVE-2017-9075", "CVE-2017-9076", "CVE-2017-9077", "CVE-2017-9242");  
      if (ksplice_cves_check(cve_list))
      {
        audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for ELSA-2017-1842");
      }
      else
      {
        __rpm_report = ksplice_reporting_text();
      }
    }
    
    kernel_major_minor = get_kb_item("Host/uname/major_minor");
    if (empty_or_null(kernel_major_minor)) exit(1, "Unable to determine kernel major-minor level.");
    expected_kernel_major_minor = "3.10";
    if (kernel_major_minor != expected_kernel_major_minor)
      audit(AUDIT_OS_NOT, "running kernel level " + expected_kernel_major_minor + ", it is running kernel level " + kernel_major_minor);
    
    flag = 0;
    if (rpm_exists(release:"EL7", rpm:"kernel-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-3.10.0-693.el7")) flag++;
    if (rpm_exists(release:"EL7", rpm:"kernel-abi-whitelists-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-abi-whitelists-3.10.0-693.el7")) flag++;
    if (rpm_exists(release:"EL7", rpm:"kernel-debug-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-debug-3.10.0-693.el7")) flag++;
    if (rpm_exists(release:"EL7", rpm:"kernel-debug-devel-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-debug-devel-3.10.0-693.el7")) flag++;
    if (rpm_exists(release:"EL7", rpm:"kernel-devel-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-devel-3.10.0-693.el7")) flag++;
    if (rpm_exists(release:"EL7", rpm:"kernel-doc-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-doc-3.10.0-693.el7")) flag++;
    if (rpm_exists(release:"EL7", rpm:"kernel-headers-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-headers-3.10.0-693.el7")) flag++;
    if (rpm_exists(release:"EL7", rpm:"kernel-tools-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-tools-3.10.0-693.el7")) flag++;
    if (rpm_exists(release:"EL7", rpm:"kernel-tools-libs-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-tools-libs-3.10.0-693.el7")) flag++;
    if (rpm_exists(release:"EL7", rpm:"kernel-tools-libs-devel-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-tools-libs-devel-3.10.0-693.el7")) flag++;
    if (rpm_check(release:"EL7", cpu:"x86_64", reference:"perf-3.10.0-693.el7")) flag++;
    if (rpm_check(release:"EL7", cpu:"x86_64", reference:"python-perf-3.10.0-693.el7")) flag++;
    
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
      else security_hole(0);
      exit(0);
    }
    else
    {
      tested = pkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "affected kernel");
    }
    
  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2017-1842.NASL
    descriptionAn update for kernel is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es) : * An use-after-free flaw was found in the Linux kernel which enables a race condition in the L2TPv3 IP Encapsulation feature. A local user could use this flaw to escalate their privileges or crash the system. (CVE-2016-10200, Important) * A flaw was found that can be triggered in keyring_search_iterator in keyring.c if type->match is NULL. A local user could use this flaw to crash the system or, potentially, escalate their privileges. (CVE-2017-2647, Important) * It was found that the NFSv4 server in the Linux kernel did not properly validate layout type when processing NFSv4 pNFS LAYOUTGET and GETDEVICEINFO operands. A remote attacker could use this flaw to soft-lockup the system and thus cause denial of service. (CVE-2017-8797, Important) This update also fixes multiple Moderate and Low impact security issues : * CVE-2015-8839, CVE-2015-8970, CVE-2016-9576, CVE-2016-7042, CVE-2016-7097, CVE-2016-8645, CVE-2016-9576, CVE-2016-9588, CVE-2016-9806, CVE-2016-10088, CVE-2016-10147, CVE-2017-2596, CVE-2017-2671, CVE-2017-5970, CVE-2017-6001, CVE-2017-6951, CVE-2017-7187, CVE-2017-7616, CVE-2017-7889, CVE-2017-8890, CVE-2017-9074, CVE-2017-8890, CVE-2017-9075, CVE-2017-8890, CVE-2017-9076, CVE-2017-8890, CVE-2017-9077, CVE-2017-9242, CVE-2014-7970, CVE-2014-7975, CVE-2016-6213, CVE-2016-9604, CVE-2016-9685 Documentation for these issues is available from the Release Notes document linked from the References section. Red Hat would like to thank Igor Redko (Virtuozzo) and Andrey Ryabinin (Virtuozzo) for reporting CVE-2017-2647; Igor Redko (Virtuozzo) and Vasily Averin (Virtuozzo) for reporting CVE-2015-8970; Marco Grassi for reporting CVE-2016-8645; and Dmitry Vyukov (Google Inc.) for reporting CVE-2017-2596. The CVE-2016-7042 issue was discovered by Ondrej Kozina (Red Hat); the CVE-2016-7097 issue was discovered by Andreas Gruenbacher (Red Hat) and Jan Kara (SUSE); the CVE-2016-6213 and CVE-2016-9685 issues were discovered by Qian Cai (Red Hat); and the CVE-2016-9604 issue was discovered by David Howells (Red Hat). Additional Changes : For detailed information on other changes in this release, see the Red Hat Enterprise Linux 7.4 Release Notes linked from the References section.
    last seen2020-06-01
    modified2020-06-02
    plugin id102143
    published2017-08-03
    reporterThis script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/102143
    titleRHEL 7 : kernel (RHSA-2017:1842) (Stack Clash)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from Red Hat Security Advisory RHSA-2017:1842. The text 
    # itself is copyright (C) Red Hat, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(102143);
      script_version("3.19");
      script_cvs_date("Date: 2019/10/24 15:35:43");
    
      script_cve_id("CVE-2014-7970", "CVE-2014-7975", "CVE-2015-8839", "CVE-2015-8970", "CVE-2016-10088", "CVE-2016-10147", "CVE-2016-10200", "CVE-2016-10741", "CVE-2016-6213", "CVE-2016-7042", "CVE-2016-7097", "CVE-2016-8645", "CVE-2016-9576", "CVE-2016-9588", "CVE-2016-9604", "CVE-2016-9685", "CVE-2016-9806", "CVE-2017-1000379", "CVE-2017-2584", "CVE-2017-2596", "CVE-2017-2647", "CVE-2017-2671", "CVE-2017-5551", "CVE-2017-5970", "CVE-2017-6001", "CVE-2017-6951", "CVE-2017-7187", "CVE-2017-7495", "CVE-2017-7616", "CVE-2017-7889", "CVE-2017-8797", "CVE-2017-8890", "CVE-2017-9074", "CVE-2017-9075", "CVE-2017-9076", "CVE-2017-9077", "CVE-2017-9242");
      script_xref(name:"RHSA", value:"2017:1842");
    
      script_name(english:"RHEL 7 : kernel (RHSA-2017:1842) (Stack Clash)");
      script_summary(english:"Checks the rpm output for the updated packages");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote Red Hat host is missing one or more security updates."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "An update for kernel is now available for Red Hat Enterprise Linux 7.
    
    Red Hat Product Security has rated this update as having a security
    impact of Important. A Common Vulnerability Scoring System (CVSS) base
    score, which gives a detailed severity rating, is available for each
    vulnerability from the CVE link(s) in the References section.
    
    The kernel packages contain the Linux kernel, the core of any Linux
    operating system.
    
    Security Fix(es) :
    
    * An use-after-free flaw was found in the Linux kernel which enables a
    race condition in the L2TPv3 IP Encapsulation feature. A local user
    could use this flaw to escalate their privileges or crash the system.
    (CVE-2016-10200, Important)
    
    * A flaw was found that can be triggered in keyring_search_iterator in
    keyring.c if type->match is NULL. A local user could use this flaw to
    crash the system or, potentially, escalate their privileges.
    (CVE-2017-2647, Important)
    
    * It was found that the NFSv4 server in the Linux kernel did not
    properly validate layout type when processing NFSv4 pNFS LAYOUTGET and
    GETDEVICEINFO operands. A remote attacker could use this flaw to
    soft-lockup the system and thus cause denial of service.
    (CVE-2017-8797, Important)
    
    This update also fixes multiple Moderate and Low impact security
    issues :
    
    * CVE-2015-8839, CVE-2015-8970, CVE-2016-9576, CVE-2016-7042,
    CVE-2016-7097, CVE-2016-8645, CVE-2016-9576, CVE-2016-9588,
    CVE-2016-9806, CVE-2016-10088, CVE-2016-10147, CVE-2017-2596,
    CVE-2017-2671, CVE-2017-5970, CVE-2017-6001, CVE-2017-6951,
    CVE-2017-7187, CVE-2017-7616, CVE-2017-7889, CVE-2017-8890,
    CVE-2017-9074, CVE-2017-8890, CVE-2017-9075, CVE-2017-8890,
    CVE-2017-9076, CVE-2017-8890, CVE-2017-9077, CVE-2017-9242,
    CVE-2014-7970, CVE-2014-7975, CVE-2016-6213, CVE-2016-9604,
    CVE-2016-9685
    
    Documentation for these issues is available from the Release Notes
    document linked from the References section.
    
    Red Hat would like to thank Igor Redko (Virtuozzo) and Andrey Ryabinin
    (Virtuozzo) for reporting CVE-2017-2647; Igor Redko (Virtuozzo) and
    Vasily Averin (Virtuozzo) for reporting CVE-2015-8970; Marco Grassi
    for reporting CVE-2016-8645; and Dmitry Vyukov (Google Inc.) for
    reporting CVE-2017-2596. The CVE-2016-7042 issue was discovered by
    Ondrej Kozina (Red Hat); the CVE-2016-7097 issue was discovered by
    Andreas Gruenbacher (Red Hat) and Jan Kara (SUSE); the CVE-2016-6213
    and CVE-2016-9685 issues were discovered by Qian Cai (Red Hat); and
    the CVE-2016-9604 issue was discovered by David Howells (Red Hat).
    
    Additional Changes :
    
    For detailed information on other changes in this release, see the Red
    Hat Enterprise Linux 7.4 Release Notes linked from the References
    section."
      );
      # https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?3395ff0b"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/errata/RHSA-2017:1842"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2014-7970"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2014-7975"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2015-8839"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2015-8970"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2016-6213"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2016-7042"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2016-7097"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2016-8645"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2016-9576"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2016-9588"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2016-9604"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2016-9685"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2016-9806"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2016-10088"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2016-10147"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2016-10200"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2016-10741"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-2584"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-2596"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-2647"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-2671"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-5551"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-5970"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-6001"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-6951"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-7187"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-7495"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-7616"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-7889"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-8797"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-8890"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-9074"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-9075"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-9076"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-9077"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-9242"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-1000379"
      );
      script_set_attribute(attribute:"solution", value:"Update the affected packages.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"true");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-abi-whitelists");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-debug");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-debug-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-debuginfo-common-s390x");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-debuginfo-common-x86_64");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-devel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-doc");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-headers");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-kdump");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-kdump-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-kdump-devel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-tools");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-tools-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs-devel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:perf");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:perf-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python-perf");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:python-perf-debuginfo");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7.4");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7.5");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7.6");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7.7");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2014/10/13");
      script_set_attribute(attribute:"patch_publication_date", value:"2017/08/01");
      script_set_attribute(attribute:"plugin_publication_date", value:"2017/08/03");
      script_set_attribute(attribute:"in_the_news", value:"true");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"Red Hat Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl", "linux_alt_patch_detect.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("global_settings.inc");
    include("misc_func.inc");
    include("rpm.inc");
    include("ksplice.inc");
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    release = get_kb_item("Host/RedHat/release");
    if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
    os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
    if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
    os_ver = os_ver[1];
    if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 7.x", "Red Hat " + os_ver);
    
    if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    cpu = get_kb_item("Host/cpu");
    if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
    if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);
    
    if (get_one_kb_item("Host/ksplice/kernel-cves"))
    {
      rm_kb_item(name:"Host/uptrack-uname-r");
      cve_list = make_list("CVE-2014-7970", "CVE-2014-7975", "CVE-2015-8839", "CVE-2015-8970", "CVE-2016-10088", "CVE-2016-10147", "CVE-2016-10200", "CVE-2016-10741", "CVE-2016-6213", "CVE-2016-7042", "CVE-2016-7097", "CVE-2016-8645", "CVE-2016-9576", "CVE-2016-9588", "CVE-2016-9604", "CVE-2016-9685", "CVE-2016-9806", "CVE-2017-1000379", "CVE-2017-2584", "CVE-2017-2596", "CVE-2017-2647", "CVE-2017-2671", "CVE-2017-5551", "CVE-2017-5970", "CVE-2017-6001", "CVE-2017-6951", "CVE-2017-7187", "CVE-2017-7495", "CVE-2017-7616", "CVE-2017-7889", "CVE-2017-8797", "CVE-2017-8890", "CVE-2017-9074", "CVE-2017-9075", "CVE-2017-9076", "CVE-2017-9077", "CVE-2017-9242");
      if (ksplice_cves_check(cve_list))
      {
        audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for RHSA-2017:1842");
      }
      else
      {
        __rpm_report = ksplice_reporting_text();
      }
    }
    
    yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
    if (!empty_or_null(yum_updateinfo)) 
    {
      rhsa = "RHSA-2017:1842";
      yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
      if (!empty_or_null(yum_report))
      {
        security_report_v4(
          port       : 0,
          severity   : SECURITY_HOLE,
          extra      : yum_report 
        );
        exit(0);
      }
      else
      {
        audit_message = "affected by Red Hat security advisory " + rhsa;
        audit(AUDIT_OS_NOT, audit_message);
      }
    }
    else
    {
      flag = 0;
      if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"kernel-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"kernel-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", reference:"kernel-abi-whitelists-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"kernel-debug-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"kernel-debug-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"kernel-debug-debuginfo-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"kernel-debug-debuginfo-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"kernel-debug-devel-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"kernel-debug-devel-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"kernel-debuginfo-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"kernel-debuginfo-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"kernel-debuginfo-common-s390x-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"kernel-debuginfo-common-x86_64-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"kernel-devel-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"kernel-devel-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", reference:"kernel-doc-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"kernel-headers-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"kernel-headers-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"kernel-kdump-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"kernel-kdump-debuginfo-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"kernel-kdump-devel-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"kernel-tools-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"kernel-tools-debuginfo-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"kernel-tools-libs-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"kernel-tools-libs-devel-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"perf-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"perf-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"perf-debuginfo-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"perf-debuginfo-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"python-perf-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"python-perf-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"s390x", reference:"python-perf-debuginfo-3.10.0-693.el7")) flag++;
    
      if (rpm_check(release:"RHEL7", cpu:"x86_64", reference:"python-perf-debuginfo-3.10.0-693.el7")) flag++;
    
    
      if (flag)
      {
        security_report_v4(
          port       : 0,
          severity   : SECURITY_HOLE,
          extra      : rpm_report_get() + redhat_report_package_caveat()
        );
        exit(0);
      }
      else
      {
        tested = pkg_tests_get();
        if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
        else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kernel / kernel-abi-whitelists / kernel-debug / etc");
      }
    }
    
  • NASL familyOracle Linux Local Security Checks
    NASL idORACLELINUX_ELSA-2017-1842-1.NASL
    descriptionThe remote Oracle Linux host is missing a security update for the kernel package(s).
    last seen2020-06-01
    modified2020-06-02
    plugin id102511
    published2017-08-16
    reporterThis script is Copyright (C) 2017-2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/102511
    titleOracle Linux 7 : kernel (ELSA-2017-1842-1) (Stack Clash)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The package checks in this plugin were extracted from Oracle Linux
    # Security Advisory ELSA-2017-1842-1.
    #
    
    if (NASL_LEVEL < 3000) exit(0);
    
    include("compat.inc");
    
    if (description)
    {
      script_id(102511);
      script_version("1.5");
      script_cvs_date("Date: 2018/07/24 18:56:12");
    
      script_cve_id("CVE-2014-7970", "CVE-2015-8970", "CVE-2016-10088", "CVE-2016-10147", "CVE-2016-10200", "CVE-2016-10208", "CVE-2016-3713", "CVE-2016-6213", "CVE-2016-6828", "CVE-2016-7042", "CVE-2016-7097", "CVE-2016-7117", "CVE-2016-7910", "CVE-2016-8630", "CVE-2016-8645", "CVE-2016-8646", "CVE-2016-8650", "CVE-2016-8655", "CVE-2016-9083", "CVE-2016-9084", "CVE-2016-9555", "CVE-2016-9576", "CVE-2016-9588", "CVE-2016-9604", "CVE-2016-9685", "CVE-2016-9793", "CVE-2016-9806", "CVE-2017-1000364", "CVE-2017-2583", "CVE-2017-2596", "CVE-2017-2618", "CVE-2017-2636", "CVE-2017-2647", "CVE-2017-2671", "CVE-2017-5970", "CVE-2017-5986", "CVE-2017-6001", "CVE-2017-6074", "CVE-2017-6214", "CVE-2017-6353", "CVE-2017-6951", "CVE-2017-7187", "CVE-2017-7308", "CVE-2017-7477", "CVE-2017-7616", "CVE-2017-7645", "CVE-2017-7889", "CVE-2017-7895", "CVE-2017-8890", "CVE-2017-9074", "CVE-2017-9075", "CVE-2017-9076", "CVE-2017-9077");
      script_xref(name:"IAVA", value:"2017-A-0288");
    
      script_name(english:"Oracle Linux 7 : kernel (ELSA-2017-1842-1) (Stack Clash)");
      script_summary(english:"Checks rpm output for the updated packages");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote Oracle Linux host is missing one or more security updates."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "The remote Oracle Linux host is missing a security update for
    the kernel package(s)."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://oss.oracle.com/pipermail/el-errata/2017-August/007125.html"
      );
      script_set_attribute(
        attribute:"solution", 
        value:"Update the affected kernel packages."
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"true");
      script_set_attribute(attribute:"exploit_framework_core", value:"true");
      script_set_attribute(attribute:"exploited_by_malware", value:"true");
      script_set_attribute(attribute:"metasploit_name", value:'AF_PACKET packet_set_ring Privilege Escalation');
      script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-abi-whitelists");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-devel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-devel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-doc");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-headers");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-tools");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-tools-libs");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-tools-libs-devel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:perf");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:python-perf");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:7");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2017/08/15");
      script_set_attribute(attribute:"in_the_news", value:"true");
      script_set_attribute(attribute:"plugin_publication_date", value:"2017/08/16");
      script_set_attribute(attribute:"stig_severity", value:"I");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2017-2018 Tenable Network Security, Inc.");
      script_family(english:"Oracle Linux Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/rpm-list");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("global_settings.inc");
    include("rpm.inc");
    
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    if (!get_kb_item("Host/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux");
    release = get_kb_item("Host/RedHat/release");
    if (isnull(release) || !eregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux");
    os_ver = eregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
    if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux");
    os_ver = os_ver[1];
    if (! ereg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 7", "Oracle Linux " + os_ver);
    
    if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    cpu = get_kb_item("Host/cpu");
    if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
    if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Oracle Linux", cpu);
    if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);
    
    flag = 0;
    if (rpm_exists(release:"EL7", rpm:"kernel-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-3.10.0-693.0.0.0.1.el7")) flag++;
    if (rpm_exists(release:"EL7", rpm:"kernel-abi-whitelists-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-abi-whitelists-3.10.0-693.0.0.0.1.el7")) flag++;
    if (rpm_exists(release:"EL7", rpm:"kernel-debug-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-debug-3.10.0-693.0.0.0.1.el7")) flag++;
    if (rpm_exists(release:"EL7", rpm:"kernel-debug-devel-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-debug-devel-3.10.0-693.0.0.0.1.el7")) flag++;
    if (rpm_exists(release:"EL7", rpm:"kernel-devel-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-devel-3.10.0-693.0.0.0.1.el7")) flag++;
    if (rpm_exists(release:"EL7", rpm:"kernel-doc-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-doc-3.10.0-693.0.0.0.1.el7")) flag++;
    if (rpm_exists(release:"EL7", rpm:"kernel-headers-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-headers-3.10.0-693.0.0.0.1.el7")) flag++;
    if (rpm_exists(release:"EL7", rpm:"kernel-tools-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-tools-3.10.0-693.0.0.0.1.el7")) flag++;
    if (rpm_exists(release:"EL7", rpm:"kernel-tools-libs-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-tools-libs-3.10.0-693.0.0.0.1.el7")) flag++;
    if (rpm_exists(release:"EL7", rpm:"kernel-tools-libs-devel-3.10.0") && rpm_check(release:"EL7", cpu:"x86_64", reference:"kernel-tools-libs-devel-3.10.0-693.0.0.0.1.el7")) flag++;
    if (rpm_check(release:"EL7", cpu:"x86_64", reference:"perf-3.10.0-693.0.0.0.1.el7")) flag++;
    if (rpm_check(release:"EL7", cpu:"x86_64", reference:"python-perf-3.10.0-693.0.0.0.1.el7")) flag++;
    
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
      else security_hole(0);
      exit(0);
    }
    else
    {
      tested = pkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "affected kernel");
    }
    
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DLA-833.NASL
    descriptionSeveral vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or have other impacts. CVE-2014-9888 Russell King found that on ARM systems, memory allocated for DMA buffers was mapped with executable permission. This made it easier to exploit other vulnerabilities in the kernel. CVE-2014-9895 Dan Carpenter found that the MEDIA_IOC_ENUM_LINKS ioctl on media devices resulted in an information leak. CVE-2016-6786 / CVE-2016-6787 It was discovered that the performance events subsystem does not properly manage locks during certain migrations, allowing a local attacker to escalate privileges. This can be mitigated by disabling unprivileged use of performance events: sysctl kernel.perf_event_paranoid=3 CVE-2016-8405 Peter Pi of Trend Micro discovered that the frame buffer video subsystem does not properly check bounds while copying color maps to userspace, causing a heap buffer out-of-bounds read, leading to information disclosure. CVE-2017-5549 It was discovered that the KLSI KL5KUSB105 serial USB device driver could log the contents of uninitialised kernel memory, resulting in an information leak. CVE-2017-6001 Di Shen discovered a race condition between concurrent calls to the performance events subsystem, allowing a local attacker to escalate privileges. This flaw exists because of an incomplete fix of CVE-2016-6786. This can be mitigated by disabling unprivileged use of performance events: sysctl kernel.perf_event_paranoid=3 CVE-2017-6074 Andrey Konovalov discovered a use-after-free vulnerability in the DCCP networking code, which could result in denial of service or local privilege escalation. On systems that do not already have the dccp module loaded, this can be mitigated by disabling it: echo >> /etc/modprobe.d/disable-dccp.conf install dccp false For Debian 7
    last seen2020-03-17
    modified2017-02-23
    plugin id97332
    published2017-02-23
    reporterThis script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/97332
    titleDebian DLA-833-1 : linux security update
    code
    #%NASL_MIN_LEVEL 80502
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from Debian Security Advisory DLA-833-1. The text
    # itself is copyright (C) Software in the Public Interest, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(97332);
      script_version("3.10");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");
    
      script_cve_id("CVE-2014-9888", "CVE-2014-9895", "CVE-2016-6786", "CVE-2016-6787", "CVE-2016-8405", "CVE-2017-5549", "CVE-2017-6001", "CVE-2017-6074");
    
      script_name(english:"Debian DLA-833-1 : linux security update");
      script_summary(english:"Checks dpkg output for the updated package.");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote Debian host is missing a security update."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "Several vulnerabilities have been discovered in the Linux kernel that
    may lead to a privilege escalation, denial of service or have other
    impacts.
    
    CVE-2014-9888
    
    Russell King found that on ARM systems, memory allocated for DMA
    buffers was mapped with executable permission. This made it easier to
    exploit other vulnerabilities in the kernel.
    
    CVE-2014-9895
    
    Dan Carpenter found that the MEDIA_IOC_ENUM_LINKS ioctl on media
    devices resulted in an information leak.
    
    CVE-2016-6786 / CVE-2016-6787
    
    It was discovered that the performance events subsystem does not
    properly manage locks during certain migrations, allowing a local
    attacker to escalate privileges. This can be mitigated by disabling
    unprivileged use of performance events: sysctl
    kernel.perf_event_paranoid=3
    
    CVE-2016-8405
    
    Peter Pi of Trend Micro discovered that the frame buffer video
    subsystem does not properly check bounds while copying color maps to
    userspace, causing a heap buffer out-of-bounds read, leading to
    information disclosure.
    
    CVE-2017-5549
    
    It was discovered that the KLSI KL5KUSB105 serial USB device driver
    could log the contents of uninitialised kernel memory, resulting in an
    information leak.
    
    CVE-2017-6001
    
    Di Shen discovered a race condition between concurrent calls to the
    performance events subsystem, allowing a local attacker to escalate
    privileges. This flaw exists because of an incomplete fix of
    CVE-2016-6786. This can be mitigated by disabling unprivileged use of
    performance events: sysctl kernel.perf_event_paranoid=3
    
    CVE-2017-6074
    
    Andrey Konovalov discovered a use-after-free vulnerability in the DCCP
    networking code, which could result in denial of service or local
    privilege escalation. On systems that do not already have the dccp
    module loaded, this can be mitigated by disabling it: echo >>
    /etc/modprobe.d/disable-dccp.conf install dccp false
    
    For Debian 7 'Wheezy', these problems have been fixed in version
    3.2.84-2.
    
    For Debian 8 'Jessie', these problems have been fixed in version
    3.16.39-1+deb8u1 or earlier.
    
    We recommend that you upgrade your linux packages.
    
    NOTE: Tenable Network Security has extracted the preceding description
    block directly from the DLA security advisory. Tenable has attempted
    to automatically clean and format it as much as possible without
    introducing additional issues."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://lists.debian.org/debian-lts-announce/2017/02/msg00021.html"
      );
      script_set_attribute(
        attribute:"solution", 
        value:"Upgrade the affected linux package."
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"true");
      script_set_attribute(attribute:"exploit_framework_core", value:"true");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2016/08/06");
      script_set_attribute(attribute:"patch_publication_date", value:"2017/02/22");
      script_set_attribute(attribute:"plugin_publication_date", value:"2017/02/23");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"Debian Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("debian_package.inc");
    
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
    if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    
    flag = 0;
    if (deb_check(release:"7.0", prefix:"linux", reference:"3.2.84-2")) flag++;
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
      else security_hole(0);
      exit(0);
    }
    else audit(AUDIT_HOST_NOT, "affected");
    
  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2017-2669.NASL
    descriptionAn update for kernel-rt is now available for Red Hat Enterprise MRG 2. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es) : * A race condition was found in the Linux kernel, present since v3.14-rc1 through v4.12. The race happens between threads of inotify_handle_event() and vfs_rename() while running the rename operation against the same file. As a result of the race the next slab data or the slab
    last seen2020-06-01
    modified2020-06-02
    plugin id103046
    published2017-09-08
    reporterThis script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/103046
    titleRHEL 6 : MRG (RHSA-2017:2669)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from Red Hat Security Advisory RHSA-2017:2669. The text 
    # itself is copyright (C) Red Hat, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(103046);
      script_version("3.13");
      script_cvs_date("Date: 2019/10/24 15:35:43");
    
      script_cve_id("CVE-2015-8839", "CVE-2016-10088", "CVE-2016-10741", "CVE-2016-7042", "CVE-2016-7097", "CVE-2016-8645", "CVE-2016-9576", "CVE-2016-9604", "CVE-2016-9685", "CVE-2016-9806", "CVE-2017-2671", "CVE-2017-5551", "CVE-2017-5970", "CVE-2017-6001", "CVE-2017-6951", "CVE-2017-7187", "CVE-2017-7495", "CVE-2017-7533", "CVE-2017-7889", "CVE-2017-8797", "CVE-2017-8890", "CVE-2017-9074", "CVE-2017-9075", "CVE-2017-9076", "CVE-2017-9077");
      script_xref(name:"RHSA", value:"2017:2669");
    
      script_name(english:"RHEL 6 : MRG (RHSA-2017:2669)");
      script_summary(english:"Checks the rpm output for the updated packages");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote Red Hat host is missing one or more security updates."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "An update for kernel-rt is now available for Red Hat Enterprise MRG 2.
    
    Red Hat Product Security has rated this update as having a security
    impact of Important. A Common Vulnerability Scoring System (CVSS) base
    score, which gives a detailed severity rating, is available for each
    vulnerability from the CVE link(s) in the References section.
    
    The kernel-rt packages provide the Real Time Linux Kernel, which
    enables fine-tuning for systems with extremely high determinism
    requirements.
    
    Security Fix(es) :
    
    * A race condition was found in the Linux kernel, present since
    v3.14-rc1 through v4.12. The race happens between threads of
    inotify_handle_event() and vfs_rename() while running the rename
    operation against the same file. As a result of the race the next slab
    data or the slab's free list pointer can be corrupted with
    attacker-controlled data, which may lead to the privilege escalation.
    (CVE-2017-7533, Important)
    
    * It was found that the NFSv4 server in the Linux kernel did not
    properly validate layout type when processing NFSv4 pNFS LAYOUTGET and
    GETDEVICEINFO operands. A remote attacker could use this flaw to
    soft-lockup the system and thus cause denial of service.
    (CVE-2017-8797, Important)
    
    This update also fixes multiple Moderate and Low impact security
    issues :
    
    CVE-2017-8797 CVE-2015-8839 CVE-2016-9576 CVE-2016-7042 CVE-2016-7097
    CVE-2016-8645 CVE-2016-9576 CVE-2016-9806 CVE-2016-10088 CVE-2017-2671
    CVE-2017-5970 CVE-2017-6001 CVE-2017-6951 CVE-2017-7187 CVE-2017-7889
    CVE-2017-8890 CVE-2017-9074 CVE-2017-8890 CVE-2017-9075 CVE-2017-8890
    CVE-2017-9076 CVE-2017-8890 CVE-2017-9077 CVE-2016-9604 CVE-2016-9685
    
    Documentation for these issues are available from the Technical Notes
    document linked to in the References section.
    
    Red Hat would like to thank Leilei Lin (Alibaba Group), Fan Wu (The
    University of Hong Kong), and Shixiong Zhao (The University of Hong
    Kong) for reporting CVE-2017-7533 and Marco Grassi for reporting
    CVE-2016-8645. The CVE-2016-7042 issue was discovered by Ondrej Kozina
    (Red Hat); the CVE-2016-7097 issue was discovered by Andreas
    Gruenbacher (Red Hat) and Jan Kara (SUSE); the CVE-2016-9604 issue was
    discovered by David Howells (Red Hat); and the CVE-2016-9685 issue was
    discovered by Qian Cai (Red Hat)."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/articles/3173821"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/errata/RHSA-2017:2669"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2015-8839"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2016-7042"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2016-7097"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2016-8645"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2016-9576"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2016-9604"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2016-9685"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2016-9806"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2016-10088"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2016-10741"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-2671"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-5551"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-5970"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-6001"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-6951"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-7187"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-7495"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-7533"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-7889"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-8797"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-8890"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-9074"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-9075"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-9076"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2017-9077"
      );
      script_set_attribute(attribute:"solution", value:"Update the affected packages.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"true");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-debuginfo-common-x86_64");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-devel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-doc");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-firmware");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace-devel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-vanilla");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-vanilla-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kernel-rt-vanilla-devel");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:6");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2016/05/02");
      script_set_attribute(attribute:"patch_publication_date", value:"2017/09/06");
      script_set_attribute(attribute:"plugin_publication_date", value:"2017/09/08");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"Red Hat Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl", "linux_alt_patch_detect.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("global_settings.inc");
    include("misc_func.inc");
    include("rpm.inc");
    include("ksplice.inc");
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    release = get_kb_item("Host/RedHat/release");
    if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
    os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
    if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
    os_ver = os_ver[1];
    if (! preg(pattern:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 6.x", "Red Hat " + os_ver);
    
    if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    cpu = get_kb_item("Host/cpu");
    if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
    if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);
    
    if (get_one_kb_item("Host/ksplice/kernel-cves"))
    {
      rm_kb_item(name:"Host/uptrack-uname-r");
      cve_list = make_list("CVE-2015-8839", "CVE-2016-10088", "CVE-2016-10741", "CVE-2016-7042", "CVE-2016-7097", "CVE-2016-8645", "CVE-2016-9576", "CVE-2016-9604", "CVE-2016-9685", "CVE-2016-9806", "CVE-2017-2671", "CVE-2017-5551", "CVE-2017-5970", "CVE-2017-6001", "CVE-2017-6951", "CVE-2017-7187", "CVE-2017-7495", "CVE-2017-7533", "CVE-2017-7889", "CVE-2017-8797", "CVE-2017-8890", "CVE-2017-9074", "CVE-2017-9075", "CVE-2017-9076", "CVE-2017-9077");
      if (ksplice_cves_check(cve_list))
      {
        audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for RHSA-2017:2669");
      }
      else
      {
        __rpm_report = ksplice_reporting_text();
      }
    }
    
    yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
    if (!empty_or_null(yum_updateinfo)) 
    {
      rhsa = "RHSA-2017:2669";
      yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
      if (!empty_or_null(yum_report))
      {
        security_report_v4(
          port       : 0,
          severity   : SECURITY_HOLE,
          extra      : yum_report 
        );
        exit(0);
      }
      else
      {
        audit_message = "affected by Red Hat security advisory " + rhsa;
        audit(AUDIT_OS_NOT, audit_message);
      }
    }
    else
    {
      flag = 0;
    
      if (! (rpm_exists(release:"RHEL6", rpm:"mrg-release"))) audit(AUDIT_PACKAGE_NOT_INSTALLED, "MRG");
    
      if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"kernel-rt-3.10.0-693.2.1.rt56.585.el6")) flag++;
      if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"kernel-rt-debug-3.10.0-693.2.1.rt56.585.el6")) flag++;
      if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"kernel-rt-debug-debuginfo-3.10.0-693.2.1.rt56.585.el6")) flag++;
      if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"kernel-rt-debug-devel-3.10.0-693.2.1.rt56.585.el6")) flag++;
      if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"kernel-rt-debuginfo-3.10.0-693.2.1.rt56.585.el6")) flag++;
      if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"kernel-rt-debuginfo-common-x86_64-3.10.0-693.2.1.rt56.585.el6")) flag++;
      if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"kernel-rt-devel-3.10.0-693.2.1.rt56.585.el6")) flag++;
      if (rpm_check(release:"RHEL6", reference:"kernel-rt-doc-3.10.0-693.2.1.rt56.585.el6")) flag++;
      if (rpm_check(release:"RHEL6", reference:"kernel-rt-firmware-3.10.0-693.2.1.rt56.585.el6")) flag++;
      if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"kernel-rt-trace-3.10.0-693.2.1.rt56.585.el6")) flag++;
      if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"kernel-rt-trace-debuginfo-3.10.0-693.2.1.rt56.585.el6")) flag++;
      if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"kernel-rt-trace-devel-3.10.0-693.2.1.rt56.585.el6")) flag++;
      if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"kernel-rt-vanilla-3.10.0-693.2.1.rt56.585.el6")) flag++;
      if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"kernel-rt-vanilla-debuginfo-3.10.0-693.2.1.rt56.585.el6")) flag++;
      if (rpm_check(release:"RHEL6", cpu:"x86_64", reference:"kernel-rt-vanilla-devel-3.10.0-693.2.1.rt56.585.el6")) flag++;
    
      if (flag)
      {
        security_report_v4(
          port       : 0,
          severity   : SECURITY_HOLE,
          extra      : rpm_report_get() + redhat_report_package_caveat()
        );
        exit(0);
      }
      else
      {
        tested = pkg_tests_get();
        if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
        else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kernel-rt / kernel-rt-debug / kernel-rt-debug-debuginfo / etc");
      }
    }
    
  • NASL familyVirtuozzo Local Security Checks
    NASL idVIRTUOZZO_VZA-2018-041.NASL
    descriptionAccording to the versions of the parallels-server-bm-release / vzkernel / etc packages installed, the Virtuozzo installation on the remote host is affected by the following vulnerabilities : - The do_get_mempolicy() function in
    last seen2020-06-01
    modified2020-06-02
    plugin id110694
    published2018-06-26
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/110694
    titleVirtuozzo 6 : parallels-server-bm-release / vzkernel / etc (VZA-2018-041)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(110694);
      script_version("1.4");
      script_cvs_date("Date: 2019/04/05 23:25:09");
    
      script_cve_id(
        "CVE-2012-6701",
        "CVE-2015-8830",
        "CVE-2016-8650",
        "CVE-2017-12190",
        "CVE-2017-18203",
        "CVE-2017-2671",
        "CVE-2017-6001",
        "CVE-2017-7616",
        "CVE-2017-7889",
        "CVE-2018-10675",
        "CVE-2018-5803",
        "CVE-2018-7757"
      );
    
      script_name(english:"Virtuozzo 6 : parallels-server-bm-release / vzkernel / etc (VZA-2018-041)");
      script_summary(english:"Checks the rpm output for the updated packages.");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote Virtuozzo host is missing multiple security updates.");
      script_set_attribute(attribute:"description", value:
    "According to the versions of the parallels-server-bm-release /
    vzkernel / etc packages installed, the Virtuozzo installation on the
    remote host is affected by the following vulnerabilities :
    
      - The do_get_mempolicy() function in 'mm/mempolicy.c' in
        the Linux kernel allows local users to hit a
        use-after-free bug via crafted system calls and thus
        cause a denial of service (DoS) or possibly have
        unspecified other impact. Due to the nature of the
        flaw, privilege escalation cannot be fully ruled out.
    
      - It was found that AIO interface didn't use the proper
        rw_verify_area() helper function with extended
        functionality, for example, mandatory locking on the
        file. Also rw_verify_area() makes extended checks, for
        example, that the size of the access doesn't cause
        overflow of the provided offset limits. This integer
        overflow in fs/aio.c in the Linux kernel before 3.4.1
        allows local users to cause a denial of service or
        possibly have unspecified other impact via a large AIO
        iovec.
    
      - Integer overflow in the aio_setup_single_vector
        function in fs/aio.c in the Linux kernel 4.0 allows
        local users to cause a denial of service or possibly
        have unspecified other impact via a large AIO iovec.
        NOTE: this vulnerability exists because of a
        CVE-2012-6701 regression.
    
      - A flaw was found in the Linux kernel key management
        subsystem in which a local attacker could crash the
        kernel or corrupt the stack and additional memory
        (denial of service) by supplying a specially crafted
        RSA key. This flaw panics the machine during the
        verification of the RSA key.
    
      - A race condition leading to a NULL pointer dereference
        was found in the Linux kernel's Link Layer Control
        implementation. A local attacker with access to ping
        sockets could use this flaw to crash the system.
    
      - It was found that the original fix for CVE-2016-6786
        was incomplete. There exist a race between two
        concurrent sys_perf_event_open() calls when both try
        and move the same pre-existing software group into a
        hardware context.
    
      - Incorrect error handling in the set_mempolicy() and
        mbind() compat syscalls in 'mm/mempolicy.c' in the
        Linux kernel allows local users to obtain sensitive
        information from uninitialized stack data by triggering
        failure of a certain bitmap operation.
    
      - The mm subsystem in the Linux kernel through 4.10.10
        does not properly enforce the CONFIG_STRICT_DEVMEM
        protection mechanism, which allows local users to read
        or write to kernel memory locations in the first
        megabyte (and bypass slab-allocation access
        restrictions) via an application that opens the
        /dev/mem file, related to arch/x86/mm/init.c and
        drivers/char/mem.c.
    
      - It was found that in the Linux kernel through
        v4.14-rc5, bio_map_user_iov() and bio_unmap_user() in
        'block/bio.c' do unbalanced pages refcounting if IO
        vector has small consecutive buffers belonging to the
        same page. bio_add_pc_page() merges them into one, but
        the page reference is never dropped, causing a memory
        leak and possible system lockup due to out-of-memory
        condition.
    
      - The Linux kernel, before version 4.14.3, is vulnerable
        to a denial of service in
        drivers/md/dm.c:dm_get_from_kobject() which can be
        caused by local users leveraging a race condition with
        __dm_destroy() during creation and removal of DM
        devices. Only privileged local users (with
        CAP_SYS_ADMIN capability) can directly perform the
        ioctl operations for dm device creation and removal and
        this would typically be outside the direct control of
        the unprivileged attacker.
    
      - An error in the '_sctp_make_chunk()' function
        (net/sctp/sm_make_chunk.c) when handling SCTP, packet
        length can be exploited by a malicious local user to
        cause a kernel crash and a DoS.
    
      - Memory leak in the sas_smp_get_phy_events function in
        drivers/scsi/libsas/sas_expander.c in the Linux kernel
        allows local users to cause a denial of service (kernel
        memory exhaustion) via multiple read accesses to files
        in the /sys/class/sas_phy directory.
    
    Note that Tenable Network Security has extracted the preceding
    description block directly from the Virtuozzo security advisory.
    Tenable has attempted to automatically clean and format it as much as
    possible without introducing additional issues.");
      script_set_attribute(attribute:"see_also", value:"https://help.virtuozzo.com/customer/portal/articles/2945474");
      script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2018:1854");
      script_set_attribute(attribute:"solution", value:
    "Update the affected parallels-server-bm-release / vzkernel / etc packages.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"true");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2018/06/25");
      script_set_attribute(attribute:"plugin_publication_date", value:"2018/06/26");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:virtuozzo:virtuozzo:parallels-server-bm-release");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:virtuozzo:virtuozzo:vzkernel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:virtuozzo:virtuozzo:vzkernel-devel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:virtuozzo:virtuozzo:vzkernel-firmware");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:virtuozzo:virtuozzo:vzmodules");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:virtuozzo:virtuozzo:vzmodules-devel");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:virtuozzo:virtuozzo:6");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"Virtuozzo Local Security Checks");
    
      script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/Virtuozzo/release", "Host/Virtuozzo/rpm-list");
    
      exit(0);
    }
    
    include("audit.inc");
    include("global_settings.inc");
    include("rpm.inc");
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    
    release = get_kb_item("Host/Virtuozzo/release");
    if (isnull(release) || "Virtuozzo" >!< release) audit(AUDIT_OS_NOT, "Virtuozzo");
    os_ver = pregmatch(pattern: "Virtuozzo Linux release ([0-9]+\.[0-9])(\D|$)", string:release);
    if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Virtuozzo");
    os_ver = os_ver[1];
    if (! preg(pattern:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Virtuozzo 6.x", "Virtuozzo " + os_ver);
    
    if (!get_kb_item("Host/Virtuozzo/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    cpu = get_kb_item("Host/cpu");
    if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
    if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Virtuozzo", cpu);
    
    flag = 0;
    
    pkgs = ["parallels-server-bm-release-6.0.12-3709",
            "vzkernel-2.6.32-042stab131.1",
            "vzkernel-devel-2.6.32-042stab131.1",
            "vzkernel-firmware-2.6.32-042stab131.1",
            "vzmodules-2.6.32-042stab131.1",
            "vzmodules-devel-2.6.32-042stab131.1"];
    
    foreach (pkg in pkgs)
      if (rpm_check(release:"Virtuozzo-6", reference:pkg)) flag++;
    
    if (flag)
    {
      security_report_v4(
        port       : 0,
        severity   : SECURITY_HOLE,
        extra      : rpm_report_get()
      );
      exit(0);
    }
    else
    {
      tested = pkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "parallels-server-bm-release / vzkernel / etc");
    }
    
  • NASL familyHuawei Local Security Checks
    NASL idEULEROS_SA-2017-1056.NASL
    descriptionAccording to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - A use-after-free flaw was found in the way the Linux kernel
    last seen2020-05-06
    modified2017-05-01
    plugin id99901
    published2017-05-01
    reporterThis script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/99901
    titleEulerOS 2.0 SP2 : kernel (EulerOS-SA-2017-1056)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(99901);
      script_version("1.11");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/04");
    
      script_cve_id(
        "CVE-2017-5669",
        "CVE-2017-6001",
        "CVE-2017-6074",
        "CVE-2017-6214",
        "CVE-2017-6348"
      );
    
      script_name(english:"EulerOS 2.0 SP2 : kernel (EulerOS-SA-2017-1056)");
      script_summary(english:"Checks the rpm output for the updated packages.");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote EulerOS host is missing multiple security updates.");
      script_set_attribute(attribute:"description", value:
    "According to the versions of the kernel packages installed, the
    EulerOS installation on the remote host is affected by the following
    vulnerabilities :
    
      - A use-after-free flaw was found in the way the Linux
        kernel's Datagram Congestion Control Protocol (DCCP)
        implementation freed SKB (socket buffer) resources for
        a DCCP_PKT_REQUEST packet when the IPV6_RECVPKTINFO
        option is set on the socket. A local, unprivileged user
        could use this flaw to alter the kernel memory,
        allowing them to escalate their privileges on the
        system. (CVE-2017-6074)
    
      - The tcp_splice_read function in net/ipv4/tcp.c in the
        Linux kernel before 4.9.11 allows remote attackers to
        cause a denial of service (infinite loop and soft
        lockup) via vectors involving a TCP packet with the URG
        flag.(CVE-2017-6214)
    
      - The do_shmat function in ipc/shm.c in the Linux kernel
        through 4.9.12 does not restrict the address calculated
        by a certain rounding operation, which allows local
        users to map page zero, and consequently bypass a
        protection mechanism that exists for the mmap system
        call, by making crafted shmget and shmat system calls
        in a privileged context.(CVE-2017-5669)
    
      - The hashbin_delete function in net/irda/irqueue.c in
        the Linux kernel before 4.9.13 improperly manages lock
        dropping, which allows local users to cause a denial of
        service (deadlock) via crafted operations on IrDA
        devices.(CVE-2017-6348)
    
      - Race condition in kernel/events/core.c in the Linux
        kernel before 4.9.7 allows local users to gain
        privileges via a crafted application that makes
        concurrent perf_event_open system calls for moving a
        software group into a hardware context.(CVE-2017-6001)
    
    Note that Tenable Network Security has extracted the preceding
    description block directly from the EulerOS security advisory. Tenable
    has attempted to automatically clean and format it as much as possible
    without introducing additional issues.");
      # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2017-1056
      script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?56132594");
      script_set_attribute(attribute:"solution", value:
    "Update the affected kernel packages.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"true");
      script_set_attribute(attribute:"exploit_framework_core", value:"true");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2017/03/17");
      script_set_attribute(attribute:"plugin_publication_date", value:"2017/05/01");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-debug");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-debug-devel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-devel");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-headers");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-tools");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:kernel-tools-libs");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:perf");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:python-perf");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"Huawei Local Security Checks");
    
      script_copyright(english:"This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
      script_exclude_keys("Host/EulerOS/uvp_version");
    
      exit(0);
    }
    
    include("audit.inc");
    include("global_settings.inc");
    include("rpm.inc");
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    
    release = get_kb_item("Host/EulerOS/release");
    if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
    if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0");
    
    sp = get_kb_item("Host/EulerOS/sp");
    if (isnull(sp) || sp !~ "^(2)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP2");
    
    uvp = get_kb_item("Host/EulerOS/uvp_version");
    if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP2", "EulerOS UVP " + uvp);
    
    if (!get_kb_item("Host/EulerOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    cpu = get_kb_item("Host/cpu");
    if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
    if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
    if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);
    
    flag = 0;
    
    pkgs = ["kernel-3.10.0-327.44.58.28",
            "kernel-debug-3.10.0-327.44.58.28",
            "kernel-debug-devel-3.10.0-327.44.58.28",
            "kernel-devel-3.10.0-327.44.58.28",
            "kernel-headers-3.10.0-327.44.58.28",
            "kernel-tools-3.10.0-327.44.58.28",
            "kernel-tools-libs-3.10.0-327.44.58.28",
            "perf-3.10.0-327.44.58.28",
            "python-perf-3.10.0-327.44.58.28"];
    
    foreach (pkg in pkgs)
      if (rpm_check(release:"EulerOS-2.0", sp:"2", reference:pkg)) flag++;
    
    if (flag)
    {
      security_report_v4(
        port       : 0,
        severity   : SECURITY_HOLE,
        extra      : rpm_report_get()
      );
      exit(0);
    }
    else
    {
      tested = pkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kernel");
    }
    
  • NASL familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-3361-1.NASL
    descriptionUSN-3358-1 fixed vulnerabilities in the Linux kernel for Ubuntu 17.04. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 17.04 for Ubuntu 16.04 LTS. Please note that this update changes the Linux HWE kernel to the 4.10 based kernel from Ubuntu 17.04, superseding the 4.8 based HWE kernel from Ubuntu 16.10. Ben Harris discovered that the Linux kernel would strip extended privilege attributes of files when performing a failed unprivileged system call. A local attacker could use this to cause a denial of service. (CVE-2015-1350) Ralf Spenneberg discovered that the ext4 implementation in the Linux kernel did not properly validate meta block groups. An attacker with physical access could use this to specially craft an ext4 image that causes a denial of service (system crash). (CVE-2016-10208) Peter Pi discovered that the colormap handling for frame buffer devices in the Linux kernel contained an integer overflow. A local attacker could use this to disclose sensitive information (kernel memory). (CVE-2016-8405) It was discovered that an integer overflow existed in the InfiniBand RDMA over ethernet (RXE) transport implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2016-8636) Vlad Tsyrklevich discovered an integer overflow vulnerability in the VFIO PCI driver for the Linux kernel. A local attacker with access to a vfio PCI device file could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2016-9083, CVE-2016-9084) CAI Qian discovered that the sysctl implementation in the Linux kernel did not properly perform reference counting in some situations. An unprivileged attacker could use this to cause a denial of service (system hang). (CVE-2016-9191) It was discovered that the keyring implementation in the Linux kernel in some situations did not prevent special internal keyrings from being joined by userspace keyrings. A privileged local attacker could use this to bypass module verification. (CVE-2016-9604) Dmitry Vyukov, Andrey Konovalov, Florian Westphal, and Eric Dumazet discovered that the netfiler subsystem in the Linux kernel mishandled IPv6 packet reassembly. A local user could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2016-9755) Andy Lutomirski and Willy Tarreau discovered that the KVM implementation in the Linux kernel did not properly emulate instructions on the SS segment register. A local attacker in a guest virtual machine could use this to cause a denial of service (guest OS crash) or possibly gain administrative privileges in the guest OS. (CVE-2017-2583) Dmitry Vyukov discovered that the KVM implementation in the Linux kernel improperly emulated certain instructions. A local attacker could use this to obtain sensitive information (kernel memory). (CVE-2017-2584) Dmitry Vyukov discovered that KVM implementation in the Linux kernel improperly emulated the VMXON instruction. A local attacker in a guest OS could use this to cause a denial of service (memory consumption) in the host OS. (CVE-2017-2596) It was discovered that SELinux in the Linux kernel did not properly handle empty writes to /proc/pid/attr. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-2618) Daniel Jiang discovered that a race condition existed in the ipv4 ping socket implementation in the Linux kernel. A local privileged attacker could use this to cause a denial of service (system crash). (CVE-2017-2671) It was discovered that the freelist-randomization in the SLAB memory allocator allowed duplicate freelist entries. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-5546) It was discovered that the KLSI KL5KUSB105 serial-to-USB device driver in the Linux kernel did not properly initialize memory related to logging. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2017-5549) It was discovered that a fencepost error existed in the pipe_advance() function in the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2017-5550) It was discovered that the Linux kernel did not clear the setgid bit during a setxattr call on a tmpfs filesystem. A local attacker could use this to gain elevated group privileges. (CVE-2017-5551) Murray McAllister discovered that an integer overflow existed in the VideoCore DRM driver of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-5576) Gareth Evans discovered that the shm IPC subsystem in the Linux kernel did not properly restrict mapping page zero. A local privileged attacker could use this to execute arbitrary code. (CVE-2017-5669) Andrey Konovalov discovered an out-of-bounds access in the IPv6 Generic Routing Encapsulation (GRE) tunneling implementation in the Linux kernel. An attacker could use this to possibly expose sensitive information. (CVE-2017-5897) Andrey Konovalov discovered that the IPv4 implementation in the Linux kernel did not properly handle invalid IP options in some situations. An attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2017-5970) Di Shen discovered that a race condition existed in the perf subsystem of the Linux kernel. A local attacker could use this to cause a denial of service or possibly gain administrative privileges. (CVE-2017-6001) Dmitry Vyukov discovered that the Linux kernel did not properly handle TCP packets with the URG flag. A remote attacker could use this to cause a denial of service. (CVE-2017-6214) Andrey Konovalov discovered that the LLC subsytem in the Linux kernel did not properly set up a destructor in certain situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-6345) It was discovered that a race condition existed in the AF_PACKET handling code in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-6346) Andrey Konovalov discovered that the IP layer in the Linux kernel made improper assumptions about internal data layout when performing checksums. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-6347) Dmitry Vyukov discovered race conditions in the Infrared (IrDA) subsystem in the Linux kernel. A local attacker could use this to cause a denial of service (deadlock). (CVE-2017-6348) Dmitry Vyukov discovered that the generic SCSI (sg) subsystem in the Linux kernel contained a stack-based buffer overflow. A local attacker with access to an sg device could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-7187) It was discovered that a NULL pointer dereference existed in the Direct Rendering Manager (DRM) driver for VMware devices in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-7261) It was discovered that the USB Cypress HID drivers for the Linux kernel did not properly validate reported information from the device. An attacker with physical access could use this to expose sensitive information (kernel memory). (CVE-2017-7273) Eric Biggers discovered a memory leak in the keyring implementation in the Linux kernel. A local attacker could use this to cause a denial of service (memory consumption). (CVE-2017-7472) It was discovered that an information leak existed in the set_mempolicy and mbind compat syscalls in the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2017-7616) Sabrina Dubroca discovered that the asynchronous cryptographic hash (ahash) implementation in the Linux kernel did not properly handle a full request queue. A local attacker could use this to cause a denial of service (infinite recursion). (CVE-2017-7618) Tuomas Haanpaa and Ari Kauppi discovered that the NFSv2 and NFSv3 server implementations in the Linux kernel did not properly handle certain long RPC replies. A remote attacker could use this to cause a denial of service (system crash). (CVE-2017-7645) Tommi Rantala and Brad Spengler discovered that the memory manager in the Linux kernel did not properly enforce the CONFIG_STRICT_DEVMEM protection mechanism. A local attacker with access to /dev/mem could use this to expose sensitive information or possibly execute arbitrary code. (CVE-2017-7889) Tuomas Haanpaa and Ari Kauppi discovered that the NFSv2 and NFSv3 server implementations in the Linux kernel did not properly check for the end of buffer. A remote attacker could use this to craft requests that cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-7895) It was discovered that an integer underflow existed in the Edgeport USB Serial Converter device driver of the Linux kernel. An attacker with physical access could use this to expose sensitive information (kernel memory). (CVE-2017-8924) It was discovered that the USB ZyXEL omni.net LCD PLUS driver in the Linux kernel did not properly perform reference counting. A local attacker could use this to cause a denial of service (tty exhaustion). (CVE-2017-8925) Jann Horn discovered that bpf in Linux kernel does not restrict the output of the print_bpf_insn function. A local attacker could use this to obtain sensitive address information. (CVE-2017-9150). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id101929
    published2017-07-24
    reporterUbuntu Security Notice (C) 2017-2019 Canonical, Inc. / NASL script (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/101929
    titleUbuntu 16.04 LTS : linux-hwe vulnerabilities (USN-3361-1)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from Ubuntu Security Notice USN-3361-1. The text 
    # itself is copyright (C) Canonical, Inc. See 
    # <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
    # trademark of Canonical, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(101929);
      script_version("3.6");
      script_cvs_date("Date: 2019/09/18 12:31:47");
    
      script_cve_id("CVE-2015-1350", "CVE-2016-10208", "CVE-2016-8405", "CVE-2016-8636", "CVE-2016-9083", "CVE-2016-9084", "CVE-2016-9191", "CVE-2016-9604", "CVE-2016-9755", "CVE-2017-2583", "CVE-2017-2584", "CVE-2017-2596", "CVE-2017-2618", "CVE-2017-2671", "CVE-2017-5546", "CVE-2017-5549", "CVE-2017-5550", "CVE-2017-5551", "CVE-2017-5576", "CVE-2017-5669", "CVE-2017-5897", "CVE-2017-5970", "CVE-2017-6001", "CVE-2017-6214", "CVE-2017-6345", "CVE-2017-6346", "CVE-2017-6347", "CVE-2017-6348", "CVE-2017-7187", "CVE-2017-7261", "CVE-2017-7273", "CVE-2017-7472", "CVE-2017-7616", "CVE-2017-7618", "CVE-2017-7645", "CVE-2017-7889", "CVE-2017-7895", "CVE-2017-8924", "CVE-2017-8925", "CVE-2017-9150");
      script_xref(name:"USN", value:"3361-1");
    
      script_name(english:"Ubuntu 16.04 LTS : linux-hwe vulnerabilities (USN-3361-1)");
      script_summary(english:"Checks dpkg output for updated packages.");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:
    "The remote Ubuntu host is missing one or more security-related
    patches."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "USN-3358-1 fixed vulnerabilities in the Linux kernel for Ubuntu 17.04.
    This update provides the corresponding updates for the Linux Hardware
    Enablement (HWE) kernel from Ubuntu 17.04 for Ubuntu 16.04 LTS. Please
    note that this update changes the Linux HWE kernel to the 4.10 based
    kernel from Ubuntu 17.04, superseding the 4.8 based HWE kernel from
    Ubuntu 16.10.
    
    Ben Harris discovered that the Linux kernel would strip extended
    privilege attributes of files when performing a failed unprivileged
    system call. A local attacker could use this to cause a denial of
    service. (CVE-2015-1350)
    
    Ralf Spenneberg discovered that the ext4 implementation in the Linux
    kernel did not properly validate meta block groups. An attacker with
    physical access could use this to specially craft an ext4 image that
    causes a denial of service (system crash). (CVE-2016-10208)
    
    Peter Pi discovered that the colormap handling for frame buffer
    devices in the Linux kernel contained an integer overflow. A local
    attacker could use this to disclose sensitive information (kernel
    memory). (CVE-2016-8405)
    
    It was discovered that an integer overflow existed in the InfiniBand
    RDMA over ethernet (RXE) transport implementation in the Linux kernel.
    A local attacker could use this to cause a denial of service (system
    crash) or possibly execute arbitrary code. (CVE-2016-8636)
    
    Vlad Tsyrklevich discovered an integer overflow vulnerability in the
    VFIO PCI driver for the Linux kernel. A local attacker with access to
    a vfio PCI device file could use this to cause a denial of service
    (system crash) or possibly execute arbitrary code. (CVE-2016-9083,
    CVE-2016-9084)
    
    CAI Qian discovered that the sysctl implementation in the Linux kernel
    did not properly perform reference counting in some situations. An
    unprivileged attacker could use this to cause a denial of service
    (system hang). (CVE-2016-9191)
    
    It was discovered that the keyring implementation in the Linux kernel
    in some situations did not prevent special internal keyrings from
    being joined by userspace keyrings. A privileged local attacker could
    use this to bypass module verification. (CVE-2016-9604)
    
    Dmitry Vyukov, Andrey Konovalov, Florian Westphal, and Eric Dumazet
    discovered that the netfiler subsystem in the Linux kernel mishandled
    IPv6 packet reassembly. A local user could use this to cause a denial
    of service (system crash) or possibly execute arbitrary code.
    (CVE-2016-9755)
    
    Andy Lutomirski and Willy Tarreau discovered that the KVM
    implementation in the Linux kernel did not properly emulate
    instructions on the SS segment register. A local attacker in a guest
    virtual machine could use this to cause a denial of service (guest OS
    crash) or possibly gain administrative privileges in the guest OS.
    (CVE-2017-2583)
    
    Dmitry Vyukov discovered that the KVM implementation in the Linux
    kernel improperly emulated certain instructions. A local attacker
    could use this to obtain sensitive information (kernel memory).
    (CVE-2017-2584)
    
    Dmitry Vyukov discovered that KVM implementation in the Linux kernel
    improperly emulated the VMXON instruction. A local attacker in a guest
    OS could use this to cause a denial of service (memory consumption) in
    the host OS. (CVE-2017-2596)
    
    It was discovered that SELinux in the Linux kernel did not properly
    handle empty writes to /proc/pid/attr. A local attacker could use this
    to cause a denial of service (system crash). (CVE-2017-2618)
    
    Daniel Jiang discovered that a race condition existed in the ipv4 ping
    socket implementation in the Linux kernel. A local privileged attacker
    could use this to cause a denial of service (system crash).
    (CVE-2017-2671)
    
    It was discovered that the freelist-randomization in the SLAB memory
    allocator allowed duplicate freelist entries. A local attacker could
    use this to cause a denial of service (system crash). (CVE-2017-5546)
    
    It was discovered that the KLSI KL5KUSB105 serial-to-USB device driver
    in the Linux kernel did not properly initialize memory related to
    logging. A local attacker could use this to expose sensitive
    information (kernel memory). (CVE-2017-5549)
    
    It was discovered that a fencepost error existed in the pipe_advance()
    function in the Linux kernel. A local attacker could use this to
    expose sensitive information (kernel memory). (CVE-2017-5550)
    
    It was discovered that the Linux kernel did not clear the setgid bit
    during a setxattr call on a tmpfs filesystem. A local attacker could
    use this to gain elevated group privileges. (CVE-2017-5551)
    
    Murray McAllister discovered that an integer overflow existed in the
    VideoCore DRM driver of the Linux kernel. A local attacker could use
    this to cause a denial of service (system crash) or possibly execute
    arbitrary code. (CVE-2017-5576)
    
    Gareth Evans discovered that the shm IPC subsystem in the Linux kernel
    did not properly restrict mapping page zero. A local privileged
    attacker could use this to execute arbitrary code. (CVE-2017-5669)
    
    Andrey Konovalov discovered an out-of-bounds access in the IPv6
    Generic Routing Encapsulation (GRE) tunneling implementation in the
    Linux kernel. An attacker could use this to possibly expose sensitive
    information. (CVE-2017-5897)
    
    Andrey Konovalov discovered that the IPv4 implementation in the Linux
    kernel did not properly handle invalid IP options in some situations.
    An attacker could use this to cause a denial of service or possibly
    execute arbitrary code. (CVE-2017-5970)
    
    Di Shen discovered that a race condition existed in the perf subsystem
    of the Linux kernel. A local attacker could use this to cause a denial
    of service or possibly gain administrative privileges. (CVE-2017-6001)
    
    Dmitry Vyukov discovered that the Linux kernel did not properly handle
    TCP packets with the URG flag. A remote attacker could use this to
    cause a denial of service. (CVE-2017-6214)
    
    Andrey Konovalov discovered that the LLC subsytem in the Linux kernel
    did not properly set up a destructor in certain situations. A local
    attacker could use this to cause a denial of service (system crash).
    (CVE-2017-6345)
    
    It was discovered that a race condition existed in the AF_PACKET
    handling code in the Linux kernel. A local attacker could use this to
    cause a denial of service (system crash) or possibly execute arbitrary
    code. (CVE-2017-6346)
    
    Andrey Konovalov discovered that the IP layer in the Linux kernel made
    improper assumptions about internal data layout when performing
    checksums. A local attacker could use this to cause a denial of
    service (system crash) or possibly execute arbitrary code.
    (CVE-2017-6347)
    
    Dmitry Vyukov discovered race conditions in the Infrared (IrDA)
    subsystem in the Linux kernel. A local attacker could use this to
    cause a denial of service (deadlock). (CVE-2017-6348)
    
    Dmitry Vyukov discovered that the generic SCSI (sg) subsystem in the
    Linux kernel contained a stack-based buffer overflow. A local attacker
    with access to an sg device could use this to cause a denial of
    service (system crash) or possibly execute arbitrary code.
    (CVE-2017-7187)
    
    It was discovered that a NULL pointer dereference existed in the
    Direct Rendering Manager (DRM) driver for VMware devices in the Linux
    kernel. A local attacker could use this to cause a denial of service
    (system crash). (CVE-2017-7261)
    
    It was discovered that the USB Cypress HID drivers for the Linux
    kernel did not properly validate reported information from the device.
    An attacker with physical access could use this to expose sensitive
    information (kernel memory). (CVE-2017-7273)
    
    Eric Biggers discovered a memory leak in the keyring implementation in
    the Linux kernel. A local attacker could use this to cause a denial of
    service (memory consumption). (CVE-2017-7472)
    
    It was discovered that an information leak existed in the
    set_mempolicy and mbind compat syscalls in the Linux kernel. A local
    attacker could use this to expose sensitive information (kernel
    memory). (CVE-2017-7616)
    
    Sabrina Dubroca discovered that the asynchronous cryptographic hash
    (ahash) implementation in the Linux kernel did not properly handle a
    full request queue. A local attacker could use this to cause a denial
    of service (infinite recursion). (CVE-2017-7618)
    
    Tuomas Haanpaa and Ari Kauppi discovered that the NFSv2 and NFSv3
    server implementations in the Linux kernel did not properly handle
    certain long RPC replies. A remote attacker could use this to cause a
    denial of service (system crash). (CVE-2017-7645)
    
    Tommi Rantala and Brad Spengler discovered that the memory manager in
    the Linux kernel did not properly enforce the CONFIG_STRICT_DEVMEM
    protection mechanism. A local attacker with access to /dev/mem could
    use this to expose sensitive information or possibly execute arbitrary
    code. (CVE-2017-7889)
    
    Tuomas Haanpaa and Ari Kauppi discovered that the NFSv2 and NFSv3
    server implementations in the Linux kernel did not properly check for
    the end of buffer. A remote attacker could use this to craft requests
    that cause a denial of service (system crash) or possibly execute
    arbitrary code. (CVE-2017-7895)
    
    It was discovered that an integer underflow existed in the Edgeport
    USB Serial Converter device driver of the Linux kernel. An attacker
    with physical access could use this to expose sensitive information
    (kernel memory). (CVE-2017-8924)
    
    It was discovered that the USB ZyXEL omni.net LCD PLUS driver in the
    Linux kernel did not properly perform reference counting. A local
    attacker could use this to cause a denial of service (tty exhaustion).
    (CVE-2017-8925)
    
    Jann Horn discovered that bpf in Linux kernel does not restrict the
    output of the print_bpf_insn function. A local attacker could use this
    to obtain sensitive address information. (CVE-2017-9150).
    
    Note that Tenable Network Security has extracted the preceding
    description block directly from the Ubuntu security advisory. Tenable
    has attempted to automatically clean and format it as much as possible
    without introducing additional issues."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://usn.ubuntu.com/3361-1/"
      );
      script_set_attribute(attribute:"solution", value:"Update the affected packages.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"true");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.10-generic");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.10-generic-lpae");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.10-lowlatency");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-hwe-16.04");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-lpae-hwe-16.04");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-lowlatency-hwe-16.04");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2016/05/02");
      script_set_attribute(attribute:"patch_publication_date", value:"2017/07/21");
      script_set_attribute(attribute:"plugin_publication_date", value:"2017/07/24");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"Ubuntu Security Notice (C) 2017-2019 Canonical, Inc. / NASL script (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"Ubuntu Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl", "linux_alt_patch_detect.nasl");
      script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("ubuntu.inc");
    include("ksplice.inc");
    
    if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    release = get_kb_item("Host/Ubuntu/release");
    if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
    release = chomp(release);
    if (! preg(pattern:"^(16\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 16.04", "Ubuntu " + release);
    if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    cpu = get_kb_item("Host/cpu");
    if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
    if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu);
    
    if (get_one_kb_item("Host/ksplice/kernel-cves"))
    {
      rm_kb_item(name:"Host/uptrack-uname-r");
      cve_list = make_list("CVE-2015-1350", "CVE-2016-10208", "CVE-2016-8405", "CVE-2016-8636", "CVE-2016-9083", "CVE-2016-9084", "CVE-2016-9191", "CVE-2016-9604", "CVE-2016-9755", "CVE-2017-2583", "CVE-2017-2584", "CVE-2017-2596", "CVE-2017-2618", "CVE-2017-2671", "CVE-2017-5546", "CVE-2017-5549", "CVE-2017-5550", "CVE-2017-5551", "CVE-2017-5576", "CVE-2017-5669", "CVE-2017-5897", "CVE-2017-5970", "CVE-2017-6001", "CVE-2017-6214", "CVE-2017-6345", "CVE-2017-6346", "CVE-2017-6347", "CVE-2017-6348", "CVE-2017-7187", "CVE-2017-7261", "CVE-2017-7273", "CVE-2017-7472", "CVE-2017-7616", "CVE-2017-7618", "CVE-2017-7645", "CVE-2017-7889", "CVE-2017-7895", "CVE-2017-8924", "CVE-2017-8925", "CVE-2017-9150");
      if (ksplice_cves_check(cve_list))
      {
        audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for USN-3361-1");
      }
      else
      {
        _ubuntu_report = ksplice_reporting_text();
      }
    }
    
    flag = 0;
    
    if (ubuntu_check(osver:"16.04", pkgname:"linux-image-4.10.0-27-generic", pkgver:"4.10.0-27.30~16.04.2")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"linux-image-4.10.0-27-generic-lpae", pkgver:"4.10.0-27.30~16.04.2")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"linux-image-4.10.0-27-lowlatency", pkgver:"4.10.0-27.30~16.04.2")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"linux-image-generic-hwe-16.04", pkgver:"4.10.0.27.30")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"linux-image-generic-lpae-hwe-16.04", pkgver:"4.10.0.27.30")) flag++;
    if (ubuntu_check(osver:"16.04", pkgname:"linux-image-lowlatency-hwe-16.04", pkgver:"4.10.0.27.30")) flag++;
    
    if (flag)
    {
      security_report_v4(
        port       : 0,
        severity   : SECURITY_HOLE,
        extra      : ubuntu_report_get()
      );
      exit(0);
    }
    else
    {
      tested = ubuntu_pkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "linux-image-4.10-generic / linux-image-4.10-generic-lpae / etc");
    }
    
  • NASL familyCentOS Local Security Checks
    NASL idCENTOS_RHSA-2017-1842.NASL
    descriptionAn update for kernel is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es) : * An use-after-free flaw was found in the Linux kernel which enables a race condition in the L2TPv3 IP Encapsulation feature. A local user could use this flaw to escalate their privileges or crash the system. (CVE-2016-10200, Important) * A flaw was found that can be triggered in keyring_search_iterator in keyring.c if type->match is NULL. A local user could use this flaw to crash the system or, potentially, escalate their privileges. (CVE-2017-2647, Important) * It was found that the NFSv4 server in the Linux kernel did not properly validate layout type when processing NFSv4 pNFS LAYOUTGET and GETDEVICEINFO operands. A remote attacker could use this flaw to soft-lockup the system and thus cause denial of service. (CVE-2017-8797, Important) This update also fixes multiple Moderate and Low impact security issues : * CVE-2015-8839, CVE-2015-8970, CVE-2016-9576, CVE-2016-7042, CVE-2016-7097, CVE-2016-8645, CVE-2016-9576, CVE-2016-9588, CVE-2016-9806, CVE-2016-10088, CVE-2016-10147, CVE-2017-2596, CVE-2017-2671, CVE-2017-5970, CVE-2017-6001, CVE-2017-6951, CVE-2017-7187, CVE-2017-7616, CVE-2017-7889, CVE-2017-8890, CVE-2017-9074, CVE-2017-8890, CVE-2017-9075, CVE-2017-8890, CVE-2017-9076, CVE-2017-8890, CVE-2017-9077, CVE-2017-9242, CVE-2014-7970, CVE-2014-7975, CVE-2016-6213, CVE-2016-9604, CVE-2016-9685 Documentation for these issues is available from the Release Notes document linked from the References section. Red Hat would like to thank Igor Redko (Virtuozzo) and Andrey Ryabinin (Virtuozzo) for reporting CVE-2017-2647; Igor Redko (Virtuozzo) and Vasily Averin (Virtuozzo) for reporting CVE-2015-8970; Marco Grassi for reporting CVE-2016-8645; and Dmitry Vyukov (Google Inc.) for reporting CVE-2017-2596. The CVE-2016-7042 issue was discovered by Ondrej Kozina (Red Hat); the CVE-2016-7097 issue was discovered by Andreas Gruenbacher (Red Hat) and Jan Kara (SUSE); the CVE-2016-6213 and CVE-2016-9685 issues were discovered by Qian Cai (Red Hat); and the CVE-2016-9604 issue was discovered by David Howells (Red Hat). Additional Changes : For detailed information on other changes in this release, see the Red Hat Enterprise Linux 7.4 Release Notes linked from the References section.
    last seen2020-06-01
    modified2020-06-02
    plugin id102734
    published2017-08-25
    reporterThis script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/102734
    titleCentOS 7 : kernel (CESA-2017:1842) (Stack Clash)
  • NASL familyOracle Linux Local Security Checks
    NASL idORACLELINUX_ELSA-2018-1854.NASL
    descriptionFrom Red Hat Security Advisory 2018:1854 : An update for kernel is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es) : * An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions (a commonly used performance optimization). It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory read from address to which a recent memory write has occurred may see an older value and subsequently cause an update into the microprocessor
    last seen2020-06-01
    modified2020-06-02
    plugin id110701
    published2018-06-27
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/110701
    titleOracle Linux 6 : kernel (ELSA-2018-1854) (Spectre)
  • NASL familyScientific Linux Local Security Checks
    NASL idSL_20180619_KERNEL_ON_SL6_X.NASL
    descriptionSecurity Fix(es) : - An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load &amp; Store instructions (a commonly used performance optimization). It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory read from address to which a recent memory write has occurred may see an older value and subsequently cause an update into the microprocessor
    last seen2020-03-18
    modified2018-07-03
    plugin id110887
    published2018-07-03
    reporterThis script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/110887
    titleScientific Linux Security Update : kernel on SL6.x i386/x86_64 (20180619) (Spectre)
  • NASL familyCentOS Local Security Checks
    NASL idCENTOS_RHSA-2018-1854.NASL
    descriptionAn update for kernel is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es) : * An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions (a commonly used performance optimization). It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory read from address to which a recent memory write has occurred may see an older value and subsequently cause an update into the microprocessor
    last seen2020-06-01
    modified2020-06-02
    plugin id110645
    published2018-06-22
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/110645
    titleCentOS 6 : kernel (CESA-2018:1854) (Spectre)
  • NASL familyHuawei Local Security Checks
    NASL idEULEROS_SA-2019-1502.NASL
    descriptionAccording to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - The perf_cpu_time_max_percent_handler function in kernel/events/core.c in the Linux kernel before 4.11 allows local users to cause a denial of service (integer overflow) or possibly have unspecified other impact via a large value, as demonstrated by an incorrect sample-rate calculation.(CVE-2017-18255) - In the Linux kernel before 4.13.5, a local user could create keyrings for other users via keyctl commands, setting unwanted defaults or causing a denial of service.(CVE-2017-18270) - The timer_create syscall implementation in kernel/time/posix-timers.c in the Linux kernel doesn
    last seen2020-03-19
    modified2019-05-13
    plugin id124825
    published2019-05-13
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/124825
    titleEulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1502)
  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2018-1854.NASL
    descriptionAn update for kernel is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es) : * An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions (a commonly used performance optimization). It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory read from address to which a recent memory write has occurred may see an older value and subsequently cause an update into the microprocessor
    last seen2020-06-01
    modified2020-06-02
    plugin id110600
    published2018-06-19
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/110600
    titleRHEL 6 : kernel (RHSA-2018:1854) (Spectre)
  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2017-2077.NASL
    descriptionAn update for kernel-rt is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es) : * An use-after-free flaw was found in the Linux kernel which enables a race condition in the L2TPv3 IP Encapsulation feature. A local user could use this flaw to escalate their privileges or crash the system. (CVE-2016-10200, Important) * A flaw was found that can be triggered in keyring_search_iterator in keyring.c if type->match is NULL. A local user could use this flaw to crash the system or, potentially, escalate their privileges. (CVE-2017-2647, Important) * It was found that the NFSv4 server in the Linux kernel did not properly validate layout type when processing NFSv4 pNFS LAYOUTGET and GETDEVICEINFO operands. A remote attacker could use this flaw to soft-lockup the system and thus cause denial of service. (CVE-2017-8797, Important) This update also fixes multiple Moderate and Low impact security issues : * CVE-2015-8839, CVE-2015-8970, CVE-2016-9576, CVE-2016-7042, CVE-2016-7097, CVE-2016-8645, CVE-2016-9576, CVE-2016-9588, CVE-2016-9806, CVE-2016-10088, CVE-2016-10147, CVE-2017-2596, CVE-2017-2671, CVE-2017-5970, CVE-2017-6001, CVE-2017-6951, CVE-2017-7187, CVE-2017-7616, CVE-2017-7889, CVE-2017-8890, CVE-2017-9074, CVE-2017-8890, CVE-2017-9075, CVE-2017-8890, CVE-2017-9076, CVE-2017-8890, CVE-2017-9077, CVE-2017-9242, CVE-2014-7970, CVE-2014-7975, CVE-2016-6213, CVE-2016-9604, CVE-2016-9685 Documentation for these issues is available from the Release Notes document linked from the References section. Red Hat would like to thank Igor Redko (Virtuozzo) and Andrey Ryabinin (Virtuozzo) for reporting CVE-2017-2647; Igor Redko (Virtuozzo) and Vasily Averin (Virtuozzo) for reporting CVE-2015-8970; Marco Grassi for reporting CVE-2016-8645; and Dmitry Vyukov (Google Inc.) for reporting CVE-2017-2596. The CVE-2016-7042 issue was discovered by Ondrej Kozina (Red Hat); the CVE-2016-7097 issue was discovered by Andreas Gruenbacher (Red Hat) and Jan Kara (SUSE); the CVE-2016-6213 and CVE-2016-9685 issues were discovered by Qian Cai (Red Hat); and the CVE-2016-9604 issue was discovered by David Howells (Red Hat). Additional Changes : For detailed information on other changes in this release, see the Red Hat Enterprise Linux 7.4 Release Notes linked from the References section.
    last seen2020-06-01
    modified2020-06-02
    plugin id102151
    published2017-08-03
    reporterThis script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/102151
    titleRHEL 7 : kernel-rt (RHSA-2017:2077)
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-3791.NASL
    descriptionSeveral vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or have other impacts. - CVE-2016-6786 / CVE-2016-6787 It was discovered that the performance events subsystem does not properly manage locks during certain migrations, allowing a local attacker to escalate privileges. This can be mitigated by disabling unprivileged use of performance events:sysctl kernel.perf_event_paranoid=3 - CVE-2016-8405 Peter Pi of Trend Micro discovered that the frame buffer video subsystem does not properly check bounds while copying color maps to userspace, causing a heap buffer out-of-bounds read, leading to information disclosure. - CVE-2016-9191 CAI Qian discovered that reference counting is not properly handled within proc_sys_readdir in the sysctl implementation, allowing a local denial of service (system hang) or possibly privilege escalation. - CVE-2017-2583 Xiaohan Zhang reported that KVM for amd64 does not correctly emulate loading of a null stack selector. This can be used by a user in a guest VM for denial of service (on an Intel CPU) or to escalate privileges within the VM (on an AMD CPU). - CVE-2017-2584 Dmitry Vyukov reported that KVM for x86 does not correctly emulate memory access by the SGDT and SIDT instructions, which can result in a use-after-free and information leak. - CVE-2017-2596 Dmitry Vyukov reported that KVM leaks page references when emulating a VMON for a nested hypervisor. This can be used by a privileged user in a guest VM for denial of service or possibly to gain privileges in the host. - CVE-2017-2618 It was discovered that an off-by-one in the handling of SELinux attributes in /proc/pid/attr could result in local denial of service. - CVE-2017-5549 It was discovered that the KLSI KL5KUSB105 serial USB device driver could log the contents of uninitialised kernel memory, resulting in an information leak. - CVE-2017-5551 Jan Kara found that changing the POSIX ACL of a file on tmpfs never cleared its set-group-ID flag, which should be done if the user changing it is not a member of the group-owner. In some cases, this would allow the user-owner of an executable to gain the privileges of the group-owner. - CVE-2017-5897 Andrey Konovalov discovered an out-of-bounds read flaw in the ip6gre_err function in the IPv6 networking code. - CVE-2017-5970 Andrey Konovalov discovered a denial-of-service flaw in the IPv4 networking code. This can be triggered by a local or remote attacker if a local UDP or raw socket has the IP_RETOPTS option enabled. - CVE-2017-6001 Di Shen discovered a race condition between concurrent calls to the performance events subsystem, allowing a local attacker to escalate privileges. This flaw exists because of an incomplete fix of CVE-2016-6786. This can be mitigated by disabling unprivileged use of performance events: sysctl kernel.perf_event_paranoid=3 - CVE-2017-6074 Andrey Konovalov discovered a use-after-free vulnerability in the DCCP networking code, which could result in denial of service or local privilege escalation. On systems that do not already have the dccp module loaded, this can be mitigated by disabling it:echo >> /etc/modprobe.d/disable-dccp.conf install dccp false
    last seen2020-06-01
    modified2020-06-02
    plugin id97357
    published2017-02-24
    reporterThis script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/97357
    titleDebian DSA-3791-1 : linux - security update
  • NASL familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-3312-2.NASL
    descriptionUSN-3312-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. It was discovered that the netfilter netlink implementation in the Linux kernel did not properly validate batch messages. A local attacker with the CAP_NET_ADMIN capability could use this to expose sensitive information or cause a denial of service. (CVE-2016-7917) Qian Zhang discovered a heap-based buffer overflow in the tipc_msg_build() function in the Linux kernel. A local attacker could use to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. (CVE-2016-8632) It was discovered that the keyring implementation in the Linux kernel in some situations did not prevent special internal keyrings from being joined by userspace keyrings. A privileged local attacker could use this to bypass module verification. (CVE-2016-9604) Dmitry Vyukov discovered that KVM implementation in the Linux kernel improperly emulated the VMXON instruction. A local attacker in a guest OS could use this to cause a denial of service (memory consumption) in the host OS. (CVE-2017-2596) Daniel Jiang discovered that a race condition existed in the ipv4 ping socket implementation in the Linux kernel. A local privileged attacker could use this to cause a denial of service (system crash). (CVE-2017-2671) Di Shen discovered that a race condition existed in the perf subsystem of the Linux kernel. A local attacker could use this to cause a denial of service or possibly gain administrative privileges. (CVE-2017-6001) Eric Biggers discovered a memory leak in the keyring implementation in the Linux kernel. A local attacker could use this to cause a denial of service (memory consumption). (CVE-2017-7472) Sabrina Dubroca discovered that the asynchronous cryptographic hash (ahash) implementation in the Linux kernel did not properly handle a full request queue. A local attacker could use this to cause a denial of service (infinite recursion). (CVE-2017-7618) Tuomas Haanpaa and Ari Kauppi discovered that the NFSv2 and NFSv3 server implementations in the Linux kernel did not properly handle certain long RPC replies. A remote attacker could use this to cause a denial of service (system crash). (CVE-2017-7645) Tommi Rantala and Brad Spengler discovered that the memory manager in the Linux kernel did not properly enforce the CONFIG_STRICT_DEVMEM protection mechanism. A local attacker with access to /dev/mem could use this to expose sensitive information or possibly execute arbitrary code. (CVE-2017-7889) Tuomas Haanpaa and Ari Kauppi discovered that the NFSv2 and NFSv3 server implementations in the Linux kernel did not properly check for the end of buffer. A remote attacker could use this to craft requests that cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-7895) It was discovered that a use-after-free vulnerability existed in the device driver for XCeive xc2028/xc3028 tuners in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2016-7913) Vlad Tsyrklevich discovered an integer overflow vulnerability in the VFIO PCI driver for the Linux kernel. A local attacker with access to a vfio PCI device file could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2016-9083, CVE-2016-9084). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id100665
    published2017-06-07
    reporterUbuntu Security Notice (C) 2017-2019 Canonical, Inc. / NASL script (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/100665
    titleUbuntu 14.04 LTS : linux-lts-xenial vulnerabilities (USN-3312-2)
  • NASL familyNewStart CGSL Local Security Checks
    NASL idNEWSTART_CGSL_NS-SA-2019-0152_KERNEL.NASL
    descriptionThe remote NewStart CGSL host, running version MAIN 4.05, has kernel packages installed that are affected by multiple vulnerabilities: - It was found that AIO interface didn
    last seen2020-06-01
    modified2020-06-02
    plugin id127425
    published2019-08-12
    reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/127425
    titleNewStart CGSL MAIN 4.05 : kernel Multiple Vulnerabilities (NS-SA-2019-0152)
  • NASL familyHuawei Local Security Checks
    NASL idEULEROS_SA-2019-1532.NASL
    descriptionAccording to the versions of the kernel packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities : - A flaw was found in the way the Linux kernel
    last seen2020-03-19
    modified2019-05-14
    plugin id124985
    published2019-05-14
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/124985
    titleEulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1532)
  • NASL familyScientific Linux Local Security Checks
    NASL idSL_20170801_KERNEL_ON_SL7_X.NASL
    descriptionSecurity Fix(es) : - An use-after-free flaw was found in the Linux kernel which enables a race condition in the L2TPv3 IP Encapsulation feature. A local user could use this flaw to escalate their privileges or crash the system. (CVE-2016-10200, Important) - A flaw was found that can be triggered in keyring_search_iterator in keyring.c if type->match is NULL. A local user could use this flaw to crash the system or, potentially, escalate their privileges. (CVE-2017-2647, Important) - It was found that the NFSv4 server in the Linux kernel did not properly validate layout type when processing NFSv4 pNFS LAYOUTGET and GETDEVICEINFO operands. A remote attacker could use this flaw to soft- lockup the system and thus cause denial of service. (CVE-2017-8797, Important) This update also fixes multiple Moderate and Low impact security issues : - CVE-2015-8839, CVE-2015-8970, CVE-2016-9576, CVE-2016-7042, CVE-2016-7097, CVE-2016-8645, CVE-2016-9576, CVE-2016-9588, CVE-2016-9806, CVE-2016-10088, CVE-2016-10147, CVE-2017-2596, CVE-2017-2671, CVE-2017-5970, CVE-2017-6001, CVE-2017-6951, CVE-2017-7187, CVE-2017-7616, CVE-2017-7889, CVE-2017-8890, CVE-2017-9074, CVE-2017-8890, CVE-2017-9075, CVE-2017-8890, CVE-2017-9076, CVE-2017-8890, CVE-2017-9077, CVE-2017-9242, CVE-2014-7970, CVE-2014-7975, CVE-2016-6213, CVE-2016-9604, CVE-2016-9685
    last seen2020-03-18
    modified2017-08-22
    plugin id102645
    published2017-08-22
    reporterThis script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/102645
    titleScientific Linux Security Update : kernel on SL7.x x86_64 (20170801)

Redhat

advisories
  • rhsa
    idRHSA-2017:1842
  • rhsa
    idRHSA-2017:2077
  • rhsa
    idRHSA-2017:2669
  • rhsa
    idRHSA-2018:1854
rpms
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