Vulnerabilities > CVE-2015-8952 - Data Processing Errors vulnerability in Linux Kernel

047910
CVSS 5.5 - MEDIUM
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
HIGH
local
low complexity
linux
CWE-19
nessus
NVD
Published: 2016-10-16
Updated: 2024-11-21

Summary

The mbcache feature in the ext2 and ext4 filesystem implementations in the Linux kernel before 4.6 mishandles xattr block caching, which allows local users to cause a denial of service (soft lockup) via filesystem operations in environments that use many attributes, as demonstrated by Ceph and Samba.

Vulnerable Configurations

Part Description Count
OS
Linux
2773

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • XML Nested Payloads
    Applications often need to transform data in and out of the XML format by using an XML parser. It may be possible for an attacker to inject data that may have an adverse effect on the XML parser when it is being processed. By nesting XML data and causing this data to be continuously self-referential, an attacker can cause the XML parser to consume more resources while processing, causing excessive memory consumption and CPU utilization. An attacker's goal is to leverage parser failure to his or her advantage. In most cases this type of an attack will result in a denial of service due to an application becoming unstable, freezing, or crash. However it may be possible to cause a crash resulting in arbitrary code execution, leading to a jump from the data plane to the control plane [R.230.1].
  • XML Oversized Payloads
    Applications often need to transform data in and out of the XML format by using an XML parser. It may be possible for an attacker to inject data that may have an adverse effect on the XML parser when it is being processed. By supplying oversized payloads in input vectors that will be processed by the XML parser, an attacker can cause the XML parser to consume more resources while processing, causing excessive memory consumption and CPU utilization, and potentially cause execution of arbitrary code. An attacker's goal is to leverage parser failure to his or her advantage. In many cases this type of an attack will result in a denial of service due to an application becoming unstable, freezing, or crash. However it is possible to cause a crash resulting in arbitrary code execution, leading to a jump from the data plane to the control plane [R.231.1].
  • XML Client-Side Attack
    Client applications such as web browsers that process HTML data often need to transform data in and out of the XML format by using an XML parser. It may be possible for an attacker to inject data that may have an adverse effect on the XML parser when it is being processed. These adverse effects may include the parser crashing, consuming too much of a resource, executing too slowly, executing code supplied by an attacker, allowing usage of unintended system functionality, etc. An attacker's goal is to leverage parser failure to his or her advantage. In some cases it may be possible to jump from the data plane to the control plane via bad data being passed to an XML parser. [R.484.1]
  • XML Parser Attack
    Applications often need to transform data in and out of the XML format by using an XML parser. It may be possible for an attacker to inject data that may have an adverse effect on the XML parser when it is being processed. These adverse effects may include the parser crashing, consuming too much of a resource, executing too slowly, executing code supplied by an attacker, allowing usage of unintended system functionality, etc. An attacker's goal is to leverage parser failure to his or her advantage. In some cases it may be possible to jump from the data plane to the control plane via bad data being passed to an XML parser. [R.99.1]

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 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 familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-3582-1.NASL
    descriptionMohamed Ghannam discovered that the IPv4 raw socket implementation in the Linux kernel contained a race condition leading to uninitialized pointer usage. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2017-17712) Laurent Guerby discovered that the mbcache feature in the ext2 and ext4 filesystems in the Linux kernel improperly handled xattr block caching. A local attacker could use this to cause a denial of service. (CVE-2015-8952) Vitaly Mayatskikh discovered that the SCSI subsystem in the Linux kernel did not properly track reference counts when merging buffers. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2017-12190) ChunYu Wang discovered that a use-after-free vulnerability existed in the SCTP protocol 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-2017-15115) Mohamed Ghannam discovered a use-after-free vulnerability in the DCCP protocol 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-2017-8824) USN-3540-1 mitigated CVE-2017-5715 (Spectre Variant 2) for the amd64 architecture in Ubuntu 16.04 LTS. This update provides the compiler-based retpoline kernel mitigation for the amd64 and i386 architectures. Jann Horn discovered that microprocessors utilizing speculative execution and branch prediction may allow unauthorized memory reads via sidechannel attacks. This flaw is known as Spectre. A local attacker could use this to expose sensitive information, including kernel memory. (CVE-2017-5715). 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 id106972
    published2018-02-23
    reporterUbuntu Security Notice (C) 2018-2019 Canonical, Inc. / NASL script (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/106972
    titleUbuntu 16.04 LTS : linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities (USN-3582-1) (Spectre)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-3582-1. 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(106972);
  script_version("3.10");
  script_cvs_date("Date: 2019/09/18 12:31:48");

  script_cve_id("CVE-2015-8952", "CVE-2017-12190", "CVE-2017-15115", "CVE-2017-17712", "CVE-2017-5715", "CVE-2017-8824");
  script_xref(name:"USN", value:"3582-1");
  script_xref(name:"IAVA", value:"2018-A-0020");

  script_name(english:"Ubuntu 16.04 LTS : linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities (USN-3582-1) (Spectre)");
  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:
"Mohamed Ghannam discovered that the IPv4 raw socket implementation in
the Linux kernel contained a race condition leading to uninitialized
pointer usage. A local attacker could use this to cause a denial of
service or possibly execute arbitrary code. (CVE-2017-17712)

Laurent Guerby discovered that the mbcache feature in the ext2 and
ext4 filesystems in the Linux kernel improperly handled xattr block
caching. A local attacker could use this to cause a denial of service.
(CVE-2015-8952)

Vitaly Mayatskikh discovered that the SCSI subsystem in the Linux
kernel did not properly track reference counts when merging buffers. A
local attacker could use this to cause a denial of service (memory
exhaustion). (CVE-2017-12190)

ChunYu Wang discovered that a use-after-free vulnerability existed in
the SCTP protocol 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-2017-15115)

Mohamed Ghannam discovered a use-after-free vulnerability in the DCCP
protocol 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-2017-8824)

USN-3540-1 mitigated CVE-2017-5715 (Spectre Variant 2) for the amd64
architecture in Ubuntu 16.04 LTS. This update provides the
compiler-based retpoline kernel mitigation for the amd64 and i386
architectures. 

Jann Horn discovered that microprocessors utilizing speculative
execution and branch prediction may allow unauthorized memory reads
via sidechannel attacks. This flaw is known as Spectre. A local
attacker could use this to expose sensitive information, including
kernel memory. (CVE-2017-5715).

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/3582-1/"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/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:L/AC:L/PR:L/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:"exploited_by_malware", 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-kvm");
  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-kvm");
  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:"cpe:/o:canonical:ubuntu_linux:16.04");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/10/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/02/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/02/23");
  script_set_attribute(attribute:"in_the_news", value:"true");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2018-2019 Canonical, Inc. / NASL script (C) 2018-2019 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-2015-8952", "CVE-2017-12190", "CVE-2017-15115", "CVE-2017-17712", "CVE-2017-5715", "CVE-2017-8824");
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for USN-3582-1");
  }
  else
  {
    _ubuntu_report = ksplice_reporting_text();
  }
}

flag = 0;

if (ubuntu_check(osver:"16.04", pkgname:"linux-image-4.4.0-1019-kvm", pkgver:"4.4.0-1019.24")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"linux-image-4.4.0-1052-aws", pkgver:"4.4.0-1052.61")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"linux-image-4.4.0-1085-raspi2", pkgver:"4.4.0-1085.93")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"linux-image-4.4.0-1087-snapdragon", pkgver:"4.4.0-1087.92")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"linux-image-4.4.0-116-generic", pkgver:"4.4.0-116.140")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"linux-image-4.4.0-116-generic-lpae", pkgver:"4.4.0-116.140")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"linux-image-4.4.0-116-lowlatency", pkgver:"4.4.0-116.140")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"linux-image-aws", pkgver:"4.4.0.1052.54")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"linux-image-generic", pkgver:"4.4.0.116.122")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"linux-image-generic-lpae", pkgver:"4.4.0.116.122")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"linux-image-kvm", pkgver:"4.4.0.1019.18")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"linux-image-lowlatency", pkgver:"4.4.0.116.122")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"linux-image-raspi2", pkgver:"4.4.0.1085.85")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"linux-image-snapdragon", pkgver:"4.4.0.1087.79")) 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 familyHuawei Local Security Checks
    NASL idEULEROS_SA-2019-1476.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 use-after-free vulnerability was found in DCCP socket code affecting the Linux kernel since 2.6.16. This vulnerability could allow an attacker to their escalate privileges.(CVE-2017-8824i1/4%0 - The OZWPAN driver in the Linux kernel through 4.0.5 relies on an untrusted length field during packet parsing, which allows remote attackers to obtain sensitive information from kernel memory or cause a denial of service (out-of-bounds read and system crash) via a crafted packet.(CVE-2015-4004i1/4%0 - Integer signedness error in the MSM V4L2 video driver for the Linux kernel 3.x, as used in Qualcomm Innovation Center (QuIC) Android contributions for MSM devices and other products, allows attackers to gain privileges or cause a denial of service (array overflow and memory corruption) via a crafted application that triggers an msm_isp_axi_create_stream call.(CVE-2016-2061i1/4%0 - A denial of service flaw was found in the way the Linux kernel
    last seen2020-03-19
    modified2019-05-13
    plugin id124800
    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/124800
    titleEulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1476)
    code
    #
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(124800);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/19");

  script_cve_id(
    "CVE-2013-2895",
    "CVE-2013-4516",
    "CVE-2014-7283",
    "CVE-2015-2877",
    "CVE-2015-3636",
    "CVE-2015-4003",
    "CVE-2015-4004",
    "CVE-2015-8952",
    "CVE-2015-8964",
    "CVE-2016-2061",
    "CVE-2016-3137",
    "CVE-2017-17806",
    "CVE-2017-18193",
    "CVE-2017-18255",
    "CVE-2017-5550",
    "CVE-2017-8824",
    "CVE-2018-1092",
    "CVE-2018-12633",
    "CVE-2018-14609",
    "CVE-2018-8822"
  );
  script_bugtraq_id(
    62045,
    63519,
    70261,
    74450,
    74668
  );

  script_name(english:"EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1476)");
  script_summary(english:"Checks the rpm output for the updated packages.");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS Virtualization for ARM 64 host is missing multiple security
updates.");
  script_set_attribute(attribute:"description", value:
"According 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 use-after-free vulnerability was found in DCCP socket
    code affecting the Linux kernel since 2.6.16. This
    vulnerability could allow an attacker to their escalate
    privileges.(CVE-2017-8824i1/4%0

  - The OZWPAN driver in the Linux kernel through 4.0.5
    relies on an untrusted length field during packet
    parsing, which allows remote attackers to obtain
    sensitive information from kernel memory or cause a
    denial of service (out-of-bounds read and system crash)
    via a crafted packet.(CVE-2015-4004i1/4%0

  - Integer signedness error in the MSM V4L2 video driver
    for the Linux kernel 3.x, as used in Qualcomm
    Innovation Center (QuIC) Android contributions for MSM
    devices and other products, allows attackers to gain
    privileges or cause a denial of service (array overflow
    and memory corruption) via a crafted application that
    triggers an msm_isp_axi_create_stream
    call.(CVE-2016-2061i1/4%0

  - A denial of service flaw was found in the way the Linux
    kernel's XFS file system implementation ordered
    directory hashes under certain conditions. A local
    attacker could use this flaw to corrupt the file system
    by creating directories with colliding hash values,
    potentially resulting in a system
    crash.(CVE-2014-7283i1/4%0

  - It was found that the Linux kernel's ping socket
    implementation did not properly handle socket unhashing
    during spurious disconnects, which could lead to a
    use-after-free flaw. On x86-64 architecture systems, a
    local user able to create ping sockets could use this
    flaw to crash the system. On non-x86-64 architecture
    systems, a local user able to create ping sockets could
    use this flaw to escalate their privileges on the
    system.(CVE-2015-3636i1/4%0

  - Incorrect buffer length handling was found in the
    ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c in
    the Linux kernel, which could be exploited by malicious
    NCPFS servers to crash the kernel or possibly execute
    an arbitrary code.(CVE-2018-8822i1/4%0

  - ** DISPUTED ** Kernel Samepage Merging (KSM) in the
    Linux kernel 2.6.32 through 4.x does not prevent use of
    a write-timing side channel, which allows guest OS
    users to defeat the ASLR protection mechanism on other
    guest OS instances via a Cross-VM ASL INtrospection
    (CAIN) attack. NOTE: the vendor states 'Basically if
    you care about this attack vector, disable
    deduplication.' Share-until-written approaches for
    memory conservation among mutually untrusting tenants
    are inherently detectable for information disclosure,
    and can be classified as potentially misunderstood
    behaviors rather than vulnerabilities.(CVE-2015-2877i1/4%0

  - The tty_set_termios_ldisc() function in
    'drivers/tty/tty_ldisc.c' in the Linux kernel before
    4.5 allows local users to obtain sensitive information
    from kernel memory by reading a tty data
    structure.(CVE-2015-8964i1/4%0

  - An issue was discovered in the Linux kernel through
    4.17.2. vbg_misc_device_ioctl() in
    drivers/virt/vboxguest/vboxguest_linux.c reads the same
    user data twice with copy_from_user. The header part of
    the user data is double-fetched, and a malicious user
    thread can tamper with the critical variables
    (hdr.size_in and hdr.size_out) in the header between
    the two fetches because of a race condition, leading to
    severe kernel errors, such as buffer over-accesses.
    This bug can cause a local denial of service and
    information leakage.(CVE-2018-12633i1/4%0

  - ** RESERVED ** This candidate has been reserved by an
    organization or individual that will use it when
    announcing a new security problem. When the candidate
    has been publicized, the details for this candidate
    will be provided.(CVE-2018-1092i1/4%0

  - fs/f2fs/extent_cache.c in the Linux kernel, before
    4.13, mishandles extent trees. This allows local users
    to cause a denial of service via an application with
    multiple threads.(CVE-2017-18193i1/4%0

  - A design flaw was found in the file extended attribute
    handling of the Linux kernel's handling of cached
    attributes. Too many entries in the cache cause a soft
    lockup while attempting to iterate the cache and access
    relevant locks.(CVE-2015-8952i1/4%0

  - Off-by-one error in the pipe_advance function in
    lib/iov_iter.c in the Linux kernel before 4.9.5 allows
    local users to obtain sensitive information from
    uninitialized heap-memory locations in opportunistic
    circumstances by reading from a pipe after an incorrect
    buffer-release decision.(CVE-2017-5550i1/4%0

  - The HMAC implementation (crypto/hmac.c) in the Linux
    kernel, before 4.14.8, does not validate that the
    underlying cryptographic hash algorithm is unkeyed.
    This allows a local attacker, able to use the
    AF_ALG-based hash interface
    (CONFIG_CRYPTO_USER_API_HASH) and the SHA-3 hash
    algorithm (CONFIG_CRYPTO_SHA3), to cause a kernel stack
    buffer overflow by executing a crafted sequence of
    system calls that encounter a missing SHA-3
    initialization.(CVE-2017-17806i1/4%0

  - The mp_get_count function in
    drivers/staging/sb105x/sb_pci_mp.c in the Linux kernel
    before 3.12 does not initialize a certain data
    structure, which allows local users to obtain sensitive
    information from kernel stack memory via a TIOCGICOUNT
    ioctl call.(CVE-2013-4516i1/4%0

  - 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-2017-18255i1/4%0

  - An issue was discovered in the btrfs filesystem code in
    the Linux kernel. An invalid pointer dereference in
    __del_reloc_root() in fs/btrfs/relocation.c when
    mounting a crafted btrfs image could lead to a system
    crash and a denial of service.(CVE-2018-14609i1/4%0

  - The oz_usb_handle_ep_data function in
    drivers/staging/ozwpan/ozusbsvc1.c in the OZWPAN driver
    in the Linux kernel through 4.0.5 allows remote
    attackers to cause a denial of service (divide-by-zero
    error and system crash) via a crafted
    packet.(CVE-2015-4003i1/4%0

  - drivers/hid/hid-logitech-dj.c in the Human Interface
    Device (HID) subsystem in the Linux kernel through
    3.11, when CONFIG_HID_LOGITECH_DJ is enabled, allows
    physically proximate attackers to cause a denial of
    service (NULL pointer dereference and OOPS) or obtain
    sensitive information from kernel memory via a crafted
    device.(CVE-2013-2895i1/4%0

  - drivers/usb/serial/cypress_m8.c in the Linux kernel
    before 4.5.1 allows physically proximate attackers to
    cause a denial of service (NULL pointer dereference and
    system crash) via a USB device without both an
    interrupt-in and an interrupt-out endpoint descriptor,
    related to the cypress_generic_port_probe and
    cypress_open functions.(CVE-2016-3137i1/4%0

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-2019-1476
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0934af5b");
  script_set_attribute(attribute:"solution", value:
"Update the affected 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:L/AC:L/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:"2019/05/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/05/13");

  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-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:kernel-tools-libs-devel");
  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:uvp:3.0.1.0");
  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) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "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");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (uvp != "3.0.1.0") audit(AUDIT_OS_NOT, "EulerOS Virtualization 3.0.1.0");
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 ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);

flag = 0;

pkgs = ["kernel-4.19.28-1.2.117",
        "kernel-devel-4.19.28-1.2.117",
        "kernel-headers-4.19.28-1.2.117",
        "kernel-tools-4.19.28-1.2.117",
        "kernel-tools-libs-4.19.28-1.2.117",
        "kernel-tools-libs-devel-4.19.28-1.2.117",
        "perf-4.19.28-1.2.117",
        "python-perf-4.19.28-1.2.117"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", 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-3582-2.NASL
    descriptionUSN-3582-1 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. Mohamed Ghannam discovered that the IPv4 raw socket implementation in the Linux kernel contained a race condition leading to uninitialized pointer usage. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2017-17712) Laurent Guerby discovered that the mbcache feature in the ext2 and ext4 filesystems in the Linux kernel improperly handled xattr block caching. A local attacker could use this to cause a denial of service. (CVE-2015-8952) Vitaly Mayatskikh discovered that the SCSI subsystem in the Linux kernel did not properly track reference counts when merging buffers. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2017-12190) ChunYu Wang discovered that a use-after-free vulnerability existed in the SCTP protocol 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-2017-15115) Mohamed Ghannam discovered a use-after-free vulnerability in the DCCP protocol 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-2017-8824) USN-3540-2 mitigated CVE-2017-5715 (Spectre Variant 2) for the amd64 architecture in Ubuntu 14.04 LTS. This update provides the compiler-based retpoline kernel mitigation for the amd64 and i386 architectures. Jann Horn discovered that microprocessors utilizing speculative execution and branch prediction may allow unauthorized memory reads via sidechannel attacks. This flaw is known as Spectre. A local attacker could use this to expose sensitive information, including kernel memory. (CVE-2017-5715). 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 id106973
    published2018-02-23
    reporterUbuntu Security Notice (C) 2018-2019 Canonical, Inc. / NASL script (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/106973
    titleUbuntu 14.04 LTS : linux-lts-xenial, linux-aws vulnerabilities (USN-3582-2) (Spectre)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-3582-2. 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(106973);
  script_version("3.10");
  script_cvs_date("Date: 2019/09/18 12:31:48");

  script_cve_id("CVE-2015-8952", "CVE-2017-12190", "CVE-2017-15115", "CVE-2017-17712", "CVE-2017-5715", "CVE-2017-8824");
  script_xref(name:"USN", value:"3582-2");
  script_xref(name:"IAVA", value:"2018-A-0020");

  script_name(english:"Ubuntu 14.04 LTS : linux-lts-xenial, linux-aws vulnerabilities (USN-3582-2) (Spectre)");
  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-3582-1 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.

Mohamed Ghannam discovered that the IPv4 raw socket implementation in
the Linux kernel contained a race condition leading to uninitialized
pointer usage. A local attacker could use this to cause a denial of
service or possibly execute arbitrary code. (CVE-2017-17712)

Laurent Guerby discovered that the mbcache feature in the ext2 and
ext4 filesystems in the Linux kernel improperly handled xattr block
caching. A local attacker could use this to cause a denial of service.
(CVE-2015-8952)

Vitaly Mayatskikh discovered that the SCSI subsystem in the Linux
kernel did not properly track reference counts when merging buffers. A
local attacker could use this to cause a denial of service (memory
exhaustion). (CVE-2017-12190)

ChunYu Wang discovered that a use-after-free vulnerability existed in
the SCTP protocol 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-2017-15115)

Mohamed Ghannam discovered a use-after-free vulnerability in the DCCP
protocol 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-2017-8824)

USN-3540-2 mitigated CVE-2017-5715 (Spectre Variant 2) for the amd64
architecture in Ubuntu 14.04 LTS. This update provides the
compiler-based retpoline kernel mitigation for the amd64 and i386
architectures. 

Jann Horn discovered that microprocessors utilizing speculative
execution and branch prediction may allow unauthorized memory reads
via sidechannel attacks. This flaw is known as Spectre. A local
attacker could use this to expose sensitive information, including
kernel memory. (CVE-2017-5715).

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/3582-2/"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/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:L/AC:L/PR:L/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:"exploited_by_malware", 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-lowlatency");
  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-lpae-lts-xenial");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-lts-xenial");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-lowlatency-lts-xenial");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/10/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/02/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/02/23");
  script_set_attribute(attribute:"in_the_news", value:"true");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2018-2019 Canonical, Inc. / NASL script (C) 2018-2019 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:"^(14\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 14.04", "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-2015-8952", "CVE-2017-12190", "CVE-2017-15115", "CVE-2017-17712", "CVE-2017-5715", "CVE-2017-8824");
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for USN-3582-2");
  }
  else
  {
    _ubuntu_report = ksplice_reporting_text();
  }
}

flag = 0;

if (ubuntu_check(osver:"14.04", pkgname:"linux-image-4.4.0-1014-aws", pkgver:"4.4.0-1014.14")) flag++;
if (ubuntu_check(osver:"14.04", pkgname:"linux-image-4.4.0-116-generic", pkgver:"4.4.0-116.140~14.04.1")) flag++;
if (ubuntu_check(osver:"14.04", pkgname:"linux-image-4.4.0-116-generic-lpae", pkgver:"4.4.0-116.140~14.04.1")) flag++;
if (ubuntu_check(osver:"14.04", pkgname:"linux-image-4.4.0-116-lowlatency", pkgver:"4.4.0-116.140~14.04.1")) flag++;
if (ubuntu_check(osver:"14.04", pkgname:"linux-image-aws", pkgver:"4.4.0.1014.14")) flag++;
if (ubuntu_check(osver:"14.04", pkgname:"linux-image-generic-lpae-lts-xenial", pkgver:"4.4.0.116.98")) flag++;
if (ubuntu_check(osver:"14.04", pkgname:"linux-image-generic-lts-xenial", pkgver:"4.4.0.116.98")) flag++;
if (ubuntu_check(osver:"14.04", pkgname:"linux-image-lowlatency-lts-xenial", pkgver:"4.4.0.116.98")) 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");
}

References