Vulnerabilities > CVE-2017-6214 - Infinite Loop vulnerability in Linux Kernel
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
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.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Nessus
NASL family Scientific Linux Local Security Checks NASL id SL_20170531_KERNEL_ON_SL6_X.NASL description Security Fix(es) : - A flaw was found in the Linux kernel last seen 2020-03-18 modified 2017-06-01 plugin id 100568 published 2017-06-01 reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/100568 title Scientific Linux Security Update : kernel on SL6.x i386/x86_64 (20170531) code # # (C) Tenable Network Security, Inc. # # The descriptive text is (C) Scientific Linux. # include("compat.inc"); if (description) { script_id(100568); script_version("3.3"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/02/25"); script_cve_id("CVE-2017-6214"); script_name(english:"Scientific Linux Security Update : kernel on SL6.x i386/x86_64 (20170531)"); script_summary(english:"Checks rpm output for the updated packages"); script_set_attribute( attribute:"synopsis", value: "The remote Scientific Linux host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "Security Fix(es) : - A flaw was found in the Linux kernel's handling of packets with the URG flag. Applications using the splice() and tcp_splice_read() functionality can allow a remote attacker to force the kernel to enter a condition in which it can loop indefinitely. (CVE-2017-6214, Moderate) Bug Fix(es) : - When executing certain Hadoop jobs, a kernel panic occasionally occurred on multiple nodes of a cluster. This update fixes the kernel scheduler, and the kernel panic no longer occurs under the described circumstances. - Previously, memory leak of the struct cred data structure and related data structures occasionally occurred. Consequently, system performance was suboptimal with the symptoms of high I/O operations wait and small amount of free memory. This update fixes the reference counter of the struct slab cache to no longer cause imbalance between the calls to the get_cred() function and the put_cred() function. As a result, the memory leak no longer occurs under the described circumstances. - Previously, the be2net driver could not detect the link status properly on IBM Power Systems. Consequently, the link status was always reported as disconnected. With this update, be2net has been fixed, and the Network Interface Cards (NICs) now report the link status correctly. - Previously, the RFF_ID and RFT_ID commands in the lpfc driver were issued in an incorrect order. Consequently, users were not able to access Logical Unit Numbers (LUNs). With this update, lpfc has been fixed to issue RFT_ID before RFF_ID, which is the correct order. As a result, users can now access LUNs as expected. - Previously, the kdump mechanism was trying to get the lock by the vmalloc_sync_all() function during a kernel panic. Consequently, a deadlock occurred, and the crashkernel did not boot. This update fixes the vmalloc_sync_all() function to avoid synchronizing the vmalloc area on the crashing CPU. As a result, the crashkernel parameter now boots as expected, and the kernel dump is collected successfully under the described circumstances." ); # https://listserv.fnal.gov/scripts/wa.exe?A2=ind1705&L=scientific-linux-errata&F=&S=&P=14413 script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?c2c5912b" ); 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:P"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-abi-whitelists"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debug"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debug-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debug-devel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debuginfo-common-i686"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-debuginfo-common-x86_64"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-devel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-doc"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-firmware"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-headers"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:perf"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:perf-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:python-perf"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:python-perf-debuginfo"); script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux"); script_set_attribute(attribute:"vuln_publication_date", value:"2017/02/23"); script_set_attribute(attribute:"patch_publication_date", value:"2017/05/31"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/06/01"); 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:"Scientific Linux Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/RedHat/release", "Host/RedHat/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("misc_func.inc"); include("rpm.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) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux"); os_ver = pregmatch(pattern: "Scientific Linux.*release ([0-9]+(\.[0-9]+)?)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Scientific Linux"); os_ver = os_ver[1]; if (! preg(pattern:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Scientific Linux 6.x", "Scientific Linux " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu); flag = 0; if (rpm_check(release:"SL6", reference:"kernel-2.6.32-696.3.1.el6")) flag++; if (rpm_check(release:"SL6", reference:"kernel-abi-whitelists-2.6.32-696.3.1.el6")) flag++; if (rpm_check(release:"SL6", reference:"kernel-debug-2.6.32-696.3.1.el6")) flag++; if (rpm_check(release:"SL6", reference:"kernel-debug-debuginfo-2.6.32-696.3.1.el6")) flag++; if (rpm_check(release:"SL6", reference:"kernel-debug-devel-2.6.32-696.3.1.el6")) flag++; if (rpm_check(release:"SL6", reference:"kernel-debuginfo-2.6.32-696.3.1.el6")) flag++; if (rpm_check(release:"SL6", reference:"kernel-debuginfo-common-i686-2.6.32-696.3.1.el6")) flag++; if (rpm_check(release:"SL6", cpu:"x86_64", reference:"kernel-debuginfo-common-x86_64-2.6.32-696.3.1.el6")) flag++; if (rpm_check(release:"SL6", reference:"kernel-devel-2.6.32-696.3.1.el6")) flag++; if (rpm_check(release:"SL6", reference:"kernel-doc-2.6.32-696.3.1.el6")) flag++; if (rpm_check(release:"SL6", reference:"kernel-firmware-2.6.32-696.3.1.el6")) flag++; if (rpm_check(release:"SL6", reference:"kernel-headers-2.6.32-696.3.1.el6")) flag++; if (rpm_check(release:"SL6", reference:"perf-2.6.32-696.3.1.el6")) flag++; if (rpm_check(release:"SL6", reference:"perf-debuginfo-2.6.32-696.3.1.el6")) flag++; if (rpm_check(release:"SL6", reference:"python-perf-2.6.32-696.3.1.el6")) flag++; if (rpm_check(release:"SL6", reference:"python-perf-debuginfo-2.6.32-696.3.1.el6")) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_WARNING, 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 / kernel-abi-whitelists / kernel-debug / etc"); }NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2017-3539.NASL description Description of changes: kernel-uek [4.1.12-61.1.34.el7uek] - uek-rpm: enable CONFIG_KSPLICE. (Jamie Iles) [Orabug: 25698171] - ksplice: add sysctls for determining Ksplice features. (Jamie Iles) [Orabug: 25698171] - signal: protect SIGNAL_UNKILLABLE from unintentional clearing. (Jamie Iles) [Orabug: 25698171] - KVM: x86: fix emulation of last seen 2020-06-01 modified 2020-06-02 plugin id 99389 published 2017-04-14 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/99389 title Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3539) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Oracle Linux Security Advisory ELSA-2017-3539. # include("compat.inc"); if (description) { script_id(99389); script_version("3.8"); script_cvs_date("Date: 2019/09/27 13:00:38"); script_cve_id("CVE-2016-10208", "CVE-2016-7910", "CVE-2017-2583", "CVE-2017-5986", "CVE-2017-6214", "CVE-2017-6347", "CVE-2017-7184"); script_name(english:"Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3539)"); 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: kernel-uek [4.1.12-61.1.34.el7uek] - uek-rpm: enable CONFIG_KSPLICE. (Jamie Iles) [Orabug: 25698171] - ksplice: add sysctls for determining Ksplice features. (Jamie Iles) [Orabug: 25698171] - signal: protect SIGNAL_UNKILLABLE from unintentional clearing. (Jamie Iles) [Orabug: 25698171] - KVM: x86: fix emulation of 'MOV SS, null selector' (Paolo Bonzini) [Orabug: 25719659] {CVE-2017-2583} {CVE-2017-2583} - ext4: store checksum seed in superblock (Darrick J. Wong) [Orabug: 25719728] {CVE-2016-10208} - ext4: reserve code points for the project quota feature (Theodore Ts'o) [Orabug: 25719728] {CVE-2016-10208} - ext4: validate s_first_meta_bg at mount time (Eryu Guan) [Orabug: 25719728] {CVE-2016-10208} - ext4: clean up feature test macros with predicate functions (Darrick J. Wong) [Orabug: 25719728] {CVE-2016-10208} - sctp: avoid BUG_ON on sctp_wait_for_sndbuf (Marcelo Ricardo Leitner) [Orabug: 25719793] {CVE-2017-5986} - tcp: avoid infinite loop in tcp_splice_read() (Eric Dumazet) [Orabug: 25720805] {CVE-2017-6214} - ip: fix IP_CHECKSUM handling (Paolo Abeni) [Orabug: 25720839] {CVE-2017-6347} - udp: fix IP_CHECKSUM handling (Eric Dumazet) [Orabug: 25720839] {CVE-2017-6347} - udp: do not expect udp headers in recv cmsg IP_CMSG_CHECKSUM (Willem de Bruijn) [Orabug: 25720839] {CVE-2017-6347} - xfrm_user: validate XFRM_MSG_NEWAE incoming ESN size harder (Andy Whitcroft) [Orabug: 25814641] {CVE-2017-7184} - xfrm_user: validate XFRM_MSG_NEWAE XFRMA_REPLAY_ESN_VAL replay_window (Andy Whitcroft) [Orabug: 25814641] {CVE-2017-7184} - block: fix use-after-free in seq file (Vegard Nossum) [Orabug: 25877509] {CVE-2016-7910}" ); script_set_attribute( attribute:"see_also", value:"https://oss.oracle.com/pipermail/el-errata/2017-April/006859.html" ); script_set_attribute( attribute:"see_also", value:"https://oss.oracle.com/pipermail/el-errata/2017-April/006860.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:U/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:N/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:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"exploit_available", value:"false"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:dtrace-modules-4.1.12-61.1.34.el6uek"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:dtrace-modules-4.1.12-61.1.34.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:"2016/11/16"); script_set_attribute(attribute:"patch_publication_date", value:"2017/04/13"); script_set_attribute(attribute:"plugin_publication_date", value:"2017/04/14"); 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-2016-10208", "CVE-2016-7910", "CVE-2017-2583", "CVE-2017-5986", "CVE-2017-6214", "CVE-2017-6347", "CVE-2017-7184"); if (ksplice_cves_check(cve_list)) { audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for ELSA-2017-3539"); } 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-4.1.12-61.1.34.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-4.1.12-61.1.34.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-4.1.12-61.1.34.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-4.1.12-61.1.34.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-4.1.12-61.1.34.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-4.1.12-61.1.34.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-4.1.12-61.1.34.el6uek")) flag++; if (rpm_check(release:"EL7", cpu:"x86_64", reference:"dtrace-modules-4.1.12-61.1.34.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-4.1.12-61.1.34.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-4.1.12-61.1.34.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-4.1.12-61.1.34.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-4.1.12-61.1.34.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-4.1.12-61.1.34.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-4.1.12-61.1.34.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 family CentOS Local Security Checks NASL id CENTOS_RHSA-2017-1615.NASL description 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) : * A flaw was found in the way Linux kernel allocates heap memory to build the scattergather list from a fragment list(skb_shinfo(skb)->frag_list) in the socket buffer(skb_buff). The heap overflow occurred if last seen 2020-06-01 modified 2020-06-02 plugin id 101120 published 2017-06-30 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/101120 title CentOS 7 : kernel (CESA-2017:1615) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2017-3566.NASL description Description of changes: kernel-uek [3.8.13-118.18.2.el7uek] - nfsd: stricter decoding of write-like NFSv2/v3 ops (J. Bruce Fields) [Orabug: 25986990] {CVE-2017-7895} [3.8.13-118.18.1.el7uek] - fnic: Update fnic driver version to 1.6.0.24 (John Sobecki) [Orabug: 24448585] - xen-netfront: Rework the fix for Rx stall during OOM and network stress (Dongli Zhang) [Orabug: 25450703] - xen-netfront: Fix Rx stall during network stress and OOM (Dongli Zhang) [Orabug: 25450703] - ipv6: Skip XFRM lookup if dst_entry in socket cache is valid (Jakub Sitnicki) - uek-rpm: enable CONFIG_KSPLICE. (Jamie Iles) [Orabug: 25549809] - ksplice: add sysctls for determining Ksplice features. (Jamie Iles) [Orabug: 25549809] - signal: protect SIGNAL_UNKILLABLE from unintentional clearing. (Jamie Iles) [Orabug: 25549809] - VSOCK: Fix lockdep issue. (Dongli Zhang) [Orabug: 25559937] - VSOCK: sock_put wasn last seen 2020-06-01 modified 2020-06-02 plugin id 100234 published 2017-05-17 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/100234 title Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3566) NASL family SuSE Local Security Checks NASL id SUSE_SU-2017-1183-1.NASL description The SUSE Linux Enterprise 12 SP2 kernel was updated to 4.4.58 to receive various security and bugfixes. Notable new/improved features : - Improved support for Hyper-V - Support for Matrox G200eH3 - Support for tcp_westwood The following security bugs were fixed : - CVE-2017-2671: The ping_unhash function in net/ipv4/ping.c in the Linux kernel was too late in obtaining a certain lock and consequently could not ensure that disconnect function calls are safe, which allowed local users to cause a denial of service (panic) by leveraging access to the protocol value of IPPROTO_ICMP in a socket system call (bnc#1031003). - CVE-2017-7308: The packet_set_ring function in net/packet/af_packet.c in the Linux kernel did not properly validate certain block-size data, which allowed local users to cause a denial of service (overflow) or possibly have unspecified other impact via crafted system calls (bnc#1031579). - CVE-2017-7294: The vmw_surface_define_ioctl function in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel did not validate addition of certain levels data, which allowed local users to trigger an integer overflow and out-of-bounds write, and cause a denial of service (system hang or crash) or possibly gain privileges, via a crafted ioctl call for a /dev/dri/renderD* device (bnc#1031440). - CVE-2017-7261: The vmw_surface_define_ioctl function in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel did not check for a zero value of certain levels data, which allowed local users to cause a denial of service (ZERO_SIZE_PTR dereference, and GPF and possibly panic) via a crafted ioctl call for a /dev/dri/renderD* device (bnc#1031052). - CVE-2017-7187: The sg_ioctl function in drivers/scsi/sg.c in the Linux kernel allowed local users to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact via a large command size in an SG_NEXT_CMD_LEN ioctl call, leading to out-of-bounds write access in the sg_write function (bnc#1030213). - CVE-2017-7374: Use-after-free vulnerability in fs/crypto/ in the Linux kernel allowed local users to cause a denial of service (NULL pointer dereference) or possibly gain privileges by revoking keyring keys being used for ext4, f2fs, or ubifs encryption, causing cryptographic transform objects to be freed prematurely (bnc#1032006). - CVE-2016-10200: Race condition in the L2TPv3 IP Encapsulation feature in the Linux kernel allowed local users to gain privileges or cause a denial of service (use-after-free) by making multiple bind system calls without properly ascertaining whether a socket has the SOCK_ZAPPED status, related to net/l2tp/l2tp_ip.c and net/l2tp/l2tp_ip6.c (bnc#1028415). - CVE-2017-6345: The LLC subsystem in the Linux kernel did not ensure that a certain destructor exists in required circumstances, which allowed local users to cause a denial of service (BUG_ON) or possibly have unspecified other impact via crafted system calls (bnc#1027190). - CVE-2017-6346: Race condition in net/packet/af_packet.c in the Linux kernel allowed local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a multithreaded application that made PACKET_FANOUT setsockopt system calls (bnc#1027189). - CVE-2017-6353: net/sctp/socket.c in the Linux kernel did not properly restrict association peel-off operations during certain wait states, which allowed local users to cause a denial of service (invalid unlock and double free) via a multithreaded application. NOTE: this vulnerability exists because of an incorrect fix for CVE-2017-5986 (bnc#1027066). - CVE-2017-6214: The tcp_splice_read function in net/ipv4/tcp.c in the Linux kernel allowed remote attackers to cause a denial of service (infinite loop and soft lockup) via vectors involving a TCP packet with the URG flag (bnc#1026722). - CVE-2016-2117: The atl2_probe function in drivers/net/ethernet/atheros/atlx/atl2.c in the Linux kernel incorrectly enables scatter/gather I/O, which allowed remote attackers to obtain sensitive information from kernel memory by reading packet data (bnc#968697). - CVE-2017-6347: The ip_cmsg_recv_checksum function in net/ipv4/ip_sockglue.c in the Linux kernel had incorrect expectations about skb data layout, which allowed local users to cause a denial of service (buffer over-read) or possibly have unspecified other impact via crafted system calls, as demonstrated by use of the MSG_MORE flag in conjunction with loopback UDP transmission (bnc#1027179). - CVE-2016-9191: The cgroup offline implementation in the Linux kernel mishandled certain drain operations, which allowed local users to cause a denial of service (system hang) by leveraging access to a container environment for executing a crafted application (bnc#1008842). - CVE-2017-2596: The nested_vmx_check_vmptr function in arch/x86/kvm/vmx.c in the Linux kernel improperly emulated the VMXON instruction, which allowed KVM L1 guest OS users to cause a denial of service (host OS memory consumption) by leveraging the mishandling of page references (bnc#1022785). - CVE-2017-6074: The dccp_rcv_state_process function in net/dccp/input.c in the Linux kernel mishandled DCCP_PKT_REQUEST packet data structures in the LISTEN state, which allowed local users to obtain root privileges or cause a denial of service (double free) via an application that made an IPV6_RECVPKTINFO setsockopt system call (bnc#1026024). The update package also includes non-security fixes. See advisory for details. Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 100023 published 2017-05-08 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/100023 title SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2017:1183-1) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2017-1647.NASL description 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 flaw was found in the way memory was being allocated on the stack for user space binaries. If heap (or different memory region) and stack memory regions were adjacent to each other, an attacker could use this flaw to jump over the stack guard gap, cause controlled memory corruption on process stack or the adjacent memory region, and thus increase their privileges on the system. This is a kernel-side mitigation which increases the stack guard gap size from one page to 1 MiB to make successful exploitation of this issue more difficult. (CVE-2017-1000364, Important) * The NFS2/3 RPC client could send long arguments to the NFS server. These encoded arguments are stored in an array of memory pages, and accessed using pointer variables. Arbitrarily long arguments could make these pointers point outside the array and cause an out-of-bounds memory access. A remote user or program could use this flaw to crash the kernel, resulting in denial of service. (CVE-2017-7645, Important) * The NFSv2 and NFSv3 server implementations in the Linux kernel through 4.10.13 lacked certain checks for the end of a buffer. A remote attacker could trigger a pointer-arithmetic error or possibly cause other unspecified impacts using crafted requests related to fs/nfsd/nfs3xdr.c and fs/nfsd/nfsxdr.c. (CVE-2017-7895, Important) * A flaw was found in the Linux kernel last seen 2020-06-01 modified 2020-06-02 plugin id 101103 published 2017-06-29 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/101103 title RHEL 6 : MRG (RHSA-2017:1647) (Stack Clash) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2017-1615.NASL description 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) : * A flaw was found in the way Linux kernel allocates heap memory to build the scattergather list from a fragment list(skb_shinfo(skb)->frag_list) in the socket buffer(skb_buff). The heap overflow occurred if last seen 2020-06-01 modified 2020-06-02 plugin id 101101 published 2017-06-29 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/101101 title RHEL 7 : kernel (RHSA-2017:1615) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2017-1057.NASL description 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 last seen 2020-05-06 modified 2017-05-01 plugin id 99902 published 2017-05-01 reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/99902 title EulerOS 2.0 SP1 : kernel (EulerOS-SA-2017-1057) NASL family SuSE Local Security Checks NASL id SUSE_SU-2017-1301-1.NASL description The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various security and bugfixes. Notable new features : - Toleration of newer crypto hardware for z Systems - USB 2.0 Link power management for Haswell-ULT The following security bugs were fixed : - CVE-2017-7308: The packet_set_ring function in net/packet/af_packet.c in the Linux kernel did not properly validate certain block-size data, which allowed local users to cause a denial of service (overflow) or possibly have unspecified other impact via crafted system calls (bnc#1031579) - CVE-2017-2671: The ping_unhash function in net/ipv4/ping.c in the Linux kernel was too late in obtaining a certain lock and consequently could not ensure that disconnect function calls are safe, which allowed local users to cause a denial of service (panic) by leveraging access to the protocol value of IPPROTO_ICMP in a socket system call (bnc#1031003) - CVE-2017-7184: The xfrm_replay_verify_len function in net/xfrm/xfrm_user.c in the Linux kernel did not validate certain size data after an XFRM_MSG_NEWAE update, which allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) by leveraging the CAP_NET_ADMIN capability (bsc#1030573). - CVE-2017-5970: The ipv4_pktinfo_prepare function in net/ipv4/ip_sockglue.c in the Linux kernel allowed attackers to cause a denial of service (system crash) via (1) an application that made crafted system calls or possibly (2) IPv4 traffic with invalid IP options (bsc#1024938). - CVE-2017-7616: Incorrect error handling in the set_mempolicy and mbind compat syscalls in mm/mempolicy.c in the Linux kernel allowed local users to obtain sensitive information from uninitialized stack data by triggering failure of a certain bitmap operation (bsc#1033336). - CVE-2017-7294: The vmw_surface_define_ioctl function in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel did not validate addition of certain levels data, which allowed local users to trigger an integer overflow and out-of-bounds write, and cause a denial of service (system hang or crash) or possibly gain privileges, via a crafted ioctl call for a /dev/dri/renderD* device (bnc#1031440) - CVE-2017-7261: The vmw_surface_define_ioctl function in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel did not check for a zero value of certain levels data, which allowed local users to cause a denial of service (ZERO_SIZE_PTR dereference, and GPF and possibly panic) via a crafted ioctl call for a /dev/dri/renderD* device (bnc#1031052) - CVE-2017-7187: The sg_ioctl function in drivers/scsi/sg.c in the Linux kernel allowed local users to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact via a large command size in an SG_NEXT_CMD_LEN ioctl call, leading to out-of-bounds write access in the sg_write function (bnc#1030213) - CVE-2017-6348: The hashbin_delete function in net/irda/irqueue.c in the Linux kernel improperly managed lock dropping, which allowed local users to cause a denial of service (deadlock) via crafted operations on IrDA devices (bnc#1027178) - CVE-2017-5669: The do_shmat function in ipc/shm.c in the Linux kernel did not restrict the address calculated by a certain rounding operation, which allowed 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 (bnc#1026914) - CVE-2015-3288: mm/memory.c in the Linux kernel mishandled anonymous pages, which allowed local users to gain privileges or cause a denial of service (page tainting) via a crafted application that triggers writing to page zero (bsc#979021). - CVE-2016-10200: Race condition in the L2TPv3 IP Encapsulation feature in the Linux kernel allowed local users to gain privileges or cause a denial of service (use-after-free) by making multiple bind system calls without properly ascertaining whether a socket has the SOCK_ZAPPED status, related to net/l2tp/l2tp_ip.c and net/l2tp/l2tp_ip6.c (bnc#1028415) - CVE-2016-5243: The tipc_nl_compat_link_dump function in net/tipc/netlink_compat.c in the Linux kernel did not properly copy a certain string, which allowed local users to obtain sensitive information from kernel stack memory by reading a Netlink message (bnc#983212) - CVE-2017-6353: net/sctp/socket.c in the Linux kernel did not properly restrict association peel-off operations during certain wait states, which allowed local users to cause a denial of service (invalid unlock and double free) via a multithreaded application (bnc#1027066) - CVE-2017-6214: The tcp_splice_read function in net/ipv4/tcp.c in the Linux kernel allowed remote attackers to cause a denial of service (infinite loop and soft lockup) via vectors involving a TCP packet with the URG flag (bnc#1026722) - CVE-2017-6074: The dccp_rcv_state_process function in net/dccp/input.c in the Linux kernel mishandled DCCP_PKT_REQUEST packet data structures in the LISTEN state, which allowed local users to obtain root privileges or cause a denial of service (double free) via an application that made an IPV6_RECVPKTINFO setsockopt system call (bnc#1026024) - CVE-2017-5986: Race condition in the sctp_wait_for_sndbuf function in net/sctp/socket.c in the Linux kernel allowed local users to cause a denial of service (assertion failure and panic) via a multithreaded application that peels off an association in a certain buffer-full state (bsc#1025235) - CVE-2015-8970: crypto/algif_skcipher.c in the Linux kernel did not verify that a setkey operation has been performed on an AF_ALG socket an accept system call is processed, which allowed local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted application that does not supply a key, related to the lrw_crypt function in crypto/lrw.c (bsc#1008374). The update package also includes non-security fixes. See advisory for details. Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 100214 published 2017-05-16 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/100214 title SUSE SLES11 Security Update : kernel (SUSE-SU-2017:1301-1) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2017-1372.NASL description 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 Moderate. 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) : * A flaw was found in the Linux kernel last seen 2020-06-01 modified 2020-06-02 plugin id 100533 published 2017-05-31 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/100533 title RHEL 6 : kernel (RHSA-2017:1372) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2017-1616.NASL description An 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) : * A flaw was found in the way memory was being allocated on the stack for user space binaries. If heap (or different memory region) and stack memory regions were adjacent to each other, an attacker could use this flaw to jump over the stack guard gap, cause controlled memory corruption on process stack or the adjacent memory region, and thus increase their privileges on the system. This is a kernel-side mitigation which increases the stack guard gap size from one page to 1 MiB to make successful exploitation of this issue more difficult. (CVE-2017-1000364, Important) * A flaw was found in the way Linux kernel allocates heap memory to build the scattergather list from a fragment list(skb_shinfo(skb)->frag_list) in the socket buffer(skb_buff). The heap overflow occurred if last seen 2020-06-01 modified 2020-06-02 plugin id 101102 published 2017-06-29 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/101102 title RHEL 7 : kernel-rt (RHSA-2017:1616) (Stack Clash) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2017-3567.NASL description Description of changes: [2.6.39-400.295.2.el6uek] - nfsd: stricter decoding of write-like NFSv2/v3 ops (J. Bruce Fields) [Orabug: 25986995] {CVE-2017-7895} [2.6.39-400.295.1.el6uek] - ocfs2/o2net: o2net_listen_data_ready should do nothing if socket state is not TCP_LISTEN (Tariq Saeed) [Orabug: 25510857] - IB/CORE: sync the resouce access in fmr_pool (Wengang Wang) [Orabug: 23750748] - ipv6: Skip XFRM lookup if dst_entry in socket cache is valid (Jakub Sitnicki) [Orabug: 25534688] - uek-rpm: enable CONFIG_KSPLICE. (Jamie Iles) [Orabug: 25549845] - ksplice: add sysctls for determining Ksplice features. (Jamie Iles) [Orabug: 25549845] - signal: protect SIGNAL_UNKILLABLE from unintentional clearing. (Jamie Iles) [Orabug: 25549845] - KVM: x86: fix emulation of last seen 2020-06-01 modified 2020-06-02 plugin id 100235 published 2017-05-17 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/100235 title Oracle Linux 6 : Unbreakable Enterprise kernel (ELSA-2017-3567) NASL family Debian Local Security Checks NASL id DEBIAN_DLA-849.NASL description Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or have other impacts. CVE-2016-9588 Jim Mattson discovered that the KVM implementation for Intel x86 processors does not properly handle #BP and #OF exceptions in an L2 (nested) virtual machine. A local attacker in an L2 guest VM can take advantage of this flaw to cause a denial of service for the L1 guest VM. CVE-2017-2636 Alexander Popov discovered a race condition flaw in the n_hdlc line discipline that can lead to a double free. A local unprivileged user can take advantage of this flaw for privilege escalation. On systems that do not already have the n_hdlc module loaded, this can be mitigated by disabling it: echo >> /etc/modprobe.d/disable-n_hdlc.conf install n_hdlc false CVE-2017-5669 Gareth Evans reported that privileged users can map memory at address 0 through the shmat() system call. This could make it easier to exploit other kernel security vulnerabilities via a set-UID program. CVE-2017-5986 Alexander Popov reported a race condition in the SCTP implementation that can be used by local users to cause a denial of service (crash). The initial fix for this was incorrect and introduced further security issues (CVE-2017-6353). This update includes a later fix that avoids those. On systems that do not already have the sctp module loaded, this can be mitigated by disabling it: echo >> /etc/modprobe.d/disable-sctp.conf install sctp false CVE-2017-6214 Dmitry Vyukov reported a bug in the TCP implementation last seen 2020-03-17 modified 2017-03-10 plugin id 97640 published 2017-03-10 reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/97640 title Debian DLA-849-1 : linux security update NASL family SuSE Local Security Checks NASL id SUSE_SU-2017-2525-1.NASL description The SUSE Linux Enterprise 11 SP3 LTSS kernel was updated receive various security and bugfixes. The following security bugs were fixed : - CVE-2016-5243: The tipc_nl_compat_link_dump function in net/tipc/netlink_compat.c in the Linux kernel did not properly copy a certain string, which allowed local users to obtain sensitive information from kernel stack memory by reading a Netlink message (bnc#983212) - CVE-2016-10200: Race condition in the L2TPv3 IP Encapsulation feature in the Linux kernel allowed local users to gain privileges or cause a denial of service (use-after-free) by making multiple bind system calls without properly ascertaining whether a socket has the SOCK_ZAPPED status, related to net/l2tp/l2tp_ip.c and net/l2tp/l2tp_ip6.c (bnc#1028415) - CVE-2017-2647: The KEYS subsystem in the Linux kernel allowed local users to gain privileges or cause a denial of service (NULL pointer dereference and system crash) via vectors involving a NULL value for a certain match field, related to the keyring_search_iterator function in keyring.c (bsc#1030593). - CVE-2017-2671: The ping_unhash function in net/ipv4/ping.c in the Linux kernel was too late in obtaining a certain lock and consequently could not ensure that disconnect function calls are safe, which allowed local users to cause a denial of service (panic) by leveraging access to the protocol value of IPPROTO_ICMP in a socket system call (bnc#1031003) - CVE-2017-5669: The do_shmat function in ipc/shm.c in the Linux kernel did not restrict the address calculated by a certain rounding operation, which allowed 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 (bnc#1026914) - CVE-2017-5970: The ipv4_pktinfo_prepare function in net/ipv4/ip_sockglue.c in the Linux kernel allowed attackers to cause a denial of service (system crash) via (1) an application that made crafted system calls or possibly (2) IPv4 traffic with invalid IP options (bsc#1024938) - CVE-2017-5986: Race condition in the sctp_wait_for_sndbuf function in net/sctp/socket.c in the Linux kernel allowed local users to cause a denial of service (assertion failure and panic) via a multithreaded application that peels off an association in a certain buffer-full state (bsc#1025235) - CVE-2017-6074: The dccp_rcv_state_process function in net/dccp/input.c in the Linux kernel mishandled DCCP_PKT_REQUEST packet data structures in the LISTEN state, which allowed local users to obtain root privileges or cause a denial of service (double free) via an application that made an IPV6_RECVPKTINFO setsockopt system call (bnc#1026024) - CVE-2017-6214: The tcp_splice_read function in net/ipv4/tcp.c in the Linux kernel allowed remote attackers to cause a denial of service (infinite loop and soft lockup) via vectors involving a TCP packet with the URG flag (bnc#1026722) - CVE-2017-6348: The hashbin_delete function in net/irda/irqueue.c in the Linux kernel improperly managed lock dropping, which allowed local users to cause a denial of service (deadlock) via crafted operations on IrDA devices (bnc#1027178) - CVE-2017-6353: net/sctp/socket.c in the Linux kernel did not properly restrict association peel-off operations during certain wait states, which allowed local users to cause a denial of service (invalid unlock and double free) via a multithreaded application. NOTE: this vulnerability exists because of an incorrect fix for CVE-2017-5986 (bnc#1027066) - CVE-2017-6951: The keyring_search_aux function in security/keys/keyring.c in the Linux kernel allowed local users to cause a denial of service (NULL pointer dereference and OOPS) via a request_key system call for the last seen 2020-06-01 modified 2020-06-02 plugin id 103354 published 2017-09-20 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/103354 title SUSE SLES11 Security Update : kernel (SUSE-SU-2017:2525-1) (Stack Clash) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3422-1.NASL description It was discovered that a buffer overflow existed in the Bluetooth stack of the Linux kernel when handling L2CAP configuration responses. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2017-1000251) It was discovered that the asynchronous I/O (aio) subsystem of the Linux kernel did not properly set permissions on aio memory mappings in some situations. An attacker could use this to more easily exploit other vulnerabilities. (CVE-2016-10044) Baozeng Ding and Andrey Konovalov discovered a race condition in the L2TPv3 IP Encapsulation 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-2016-10200) Andreas Gruenbacher and Jan Kara discovered that the filesystem implementation in the Linux kernel did not clear the setgid bit during a setxattr call. A local attacker could use this to possibly elevate group privileges. (CVE-2016-7097) Sergej Schumilo, Ralf Spenneberg, and Hendrik Schwartke discovered that the key management subsystem in the Linux kernel did not properly allocate memory in some situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-8650) 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) It was discovered that an information leak existed in __get_user_asm_ex() in the Linux kernel. A local attacker could use this to expose sensitive information. (CVE-2016-9178) 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) It was discovered that an integer overflow existed in the trace subsystem of the Linux kernel. A local privileged attacker could use this to cause a denial of service (system crash). (CVE-2016-9754) 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) 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) 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) It was discovered that the keyring implementation in the Linux kernel did not properly restrict searches for dead keys. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-6951) 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) 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 a buffer overflow existed in the Broadcom FullMAC WLAN driver in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-7541). 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 seen 2020-06-05 modified 2017-09-19 plugin id 103326 published 2017-09-19 reporter Ubuntu Security Notice (C) 2017-2020 Canonical, Inc. / NASL script (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/103326 title Ubuntu 14.04 LTS : linux vulnerabilities (USN-3422-1) (BlueBorne) NASL family Amazon Linux Local Security Checks NASL id ALA_ALAS-2017-805.NASL description A use-after-free flaw was found in the way the Linux kernel last seen 2020-06-01 modified 2020-06-02 plugin id 97557 published 2017-03-07 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/97557 title Amazon Linux AMI : kernel (ALAS-2017-805) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2017-1372.NASL description From Red Hat Security Advisory 2017:1372 : 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 Moderate. 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) : * A flaw was found in the Linux kernel last seen 2020-06-01 modified 2020-06-02 plugin id 100527 published 2017-05-31 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/100527 title Oracle Linux 6 : kernel (ELSA-2017-1372) NASL family SuSE Local Security Checks NASL id OPENSUSE-2017-418.NASL description The openSUSE Leap 42.2 kernel was updated to 4.4.56 fix various security issues and bugs. The following security bugs were fixed : - CVE-2017-7184: The xfrm_replay_verify_len function in net/xfrm/xfrm_user.c in the Linux kernel did not validate certain size data after an XFRM_MSG_NEWAE update, which allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) by leveraging the CAP_NET_ADMIN capability, as demonstrated during a Pwn2Own competition at CanSecWest 2017 for the Ubuntu 16.10 linux-image-* package 4.8.0.41.52 (bnc#1030573). - CVE-2016-10200: Race condition in the L2TPv3 IP Encapsulation feature in the Linux kernel allowed local users to gain privileges or cause a denial of service (use-after-free) by making multiple bind system calls without properly ascertaining whether a socket has the SOCK_ZAPPED status, related to net/l2tp/l2tp_ip.c and net/l2tp/l2tp_ip6.c (bnc#1028415). - CVE-2017-2636: Race condition in drivers/tty/n_hdlc.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (double free) by setting the HDLC line discipline (bnc#1027565). - CVE-2017-6345: The LLC subsystem in the Linux kernel did not ensure that a certain destructor exists in required circumstances, which allowed local users to cause a denial of service (BUG_ON) or possibly have unspecified other impact via crafted system calls (bnc#1027190). - CVE-2017-6346: Race condition in net/packet/af_packet.c in the Linux kernel allowed local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a multithreaded application that made PACKET_FANOUT setsockopt system calls (bnc#1027189). - CVE-2017-6353: net/sctp/socket.c in the Linux kernel did not properly restrict association peel-off operations during certain wait states, which allowed local users to cause a denial of service (invalid unlock and double free) via a multithreaded application. NOTE: this vulnerability exists because of an incorrect fix for CVE-2017-5986 (bnc#1025235). - CVE-2017-6214: The tcp_splice_read function in net/ipv4/tcp.c in the Linux kernel allowed remote attackers to cause a denial of service (infinite loop and soft lockup) via vectors involving a TCP packet with the URG flag (bnc#1026722). - CVE-2016-2117: The atl2_probe function in drivers/net/ethernet/atheros/atlx/atl2.c in the Linux kernel incorrectly enables scatter/gather I/O, which allowed remote attackers to obtain sensitive information from kernel memory by reading packet data (bnc#968697). - CVE-2017-6347: The ip_cmsg_recv_checksum function in net/ipv4/ip_sockglue.c in the Linux kernel has incorrect expectations about skb data layout, which allowed local users to cause a denial of service (buffer over-read) or possibly have unspecified other impact via crafted system calls, as demonstrated by use of the MSG_MORE flag in conjunction with loopback UDP transmission (bnc#1027179). - CVE-2016-9191: The cgroup offline implementation in the Linux kernel mishandled certain drain operations, which allowed local users to cause a denial of service (system hang) by leveraging access to a container environment for executing a crafted application, as demonstrated by trinity (bnc#1008842). - CVE-2017-2596: The nested_vmx_check_vmptr function in arch/x86/kvm/vmx.c in the Linux kernel improperly emulates the VMXON instruction, which allowed KVM L1 guest OS users to cause a denial of service (host OS memory consumption) by leveraging the mishandling of page references (bnc#1022785). The following non-security bugs were fixed : - ACPI: Do not create a platform_device for IOAPIC/IOxAPIC (bsc#1028819). - ACPI, ioapic: Clear on-stack resource before using it (bsc#1028819). - ACPI: Remove platform devices from a bus on removal (bsc#1028819). - add mainline tag to one hyperv patch - bnx2x: allow adding VLANs while interface is down (bsc#1027273). - btrfs: backref: Fix soft lockup in __merge_refs function (bsc#1017641). - btrfs: incremental send, do not delay rename when parent inode is new (bsc#1028325). - btrfs: incremental send, do not issue invalid rmdir operations (bsc#1028325). - btrfs: qgroup: Move half of the qgroup accounting time out of commit trans (bsc#1017461). - btrfs: send, fix failure to rename top level inode due to name collision (bsc#1028325). - btrfs: serialize subvolume mounts with potentially mismatching rw flags (bsc#951844 bsc#1024015) - crypto: algif_hash - avoid zero-sized array (bnc#1007962). - cxgb4vf: do not offload Rx checksums for IPv6 fragments (bsc#1026692). - drivers: hv: vmbus: Prevent sending data on a rescinded channel (fate#320485, bug#1028217). - drm/i915: Add intel_uncore_suspend / resume functions (bsc#1011913). - drm/i915: Listen for PMIC bus access notifications (bsc#1011913). - drm/mgag200: Added support for the new device G200eH3 (bsc#1007959, fate#322780) - ext4: fix fencepost in s_first_meta_bg validation (bsc#1029986). - Fix kABI breakage of dccp in 4.4.56 (stable-4.4.56). - futex: Add missing error handling to FUTEX_REQUEUE_PI (bsc#969755). - futex: Fix potential use-after-free in FUTEX_REQUEUE_PI (bsc#969755). - i2c: designware-baytrail: Acquire P-Unit access on bus acquire (bsc#1011913). - i2c: designware-baytrail: Call pmic_bus_access_notifier_chain (bsc#1011913). - i2c: designware-baytrail: Fix race when resetting the semaphore (bsc#1011913). - i2c: designware-baytrail: Only check iosf_mbi_available() for shared hosts (bsc#1011913). - i2c: designware: Disable pm for PMIC i2c-bus even if there is no _SEM method (bsc#1011913). - i2c-designware: increase timeout (bsc#1011913). - i2c: designware: Never suspend i2c-busses used for accessing the system PMIC (bsc#1011913). - i2c: designware: Rename accessor_flags to flags (bsc#1011913). - kABI: protect struct iscsi_conn (kabi). - kABI: protect struct se_node_acl (kabi). - kABI: restore can_rx_register parameters (kabi). - kgr/module: make a taint flag module-specific (fate#313296). - kgr: remove all arch-specific kgraft header files (fate#313296). - l2tp: fix address test in __l2tp_ip6_bind_lookup() (bsc#1028415). - l2tp: fix lookup for sockets not bound to a device in l2tp_ip (bsc#1028415). - l2tp: fix racy socket lookup in l2tp_ip and l2tp_ip6 bind() (bsc#1028415). - l2tp: hold socket before dropping lock in l2tp_ip(, 6)_recv() (bsc#1028415). - l2tp: lock socket before checking flags in connect() (bsc#1028415). - md/raid1: add rcu protection to rdev in fix_read_error (References: bsc#998106,bsc#1020048,bsc#982783). - md/raid1: fix a use-after-free bug (bsc#998106,bsc#1020048,bsc#982783). - md/raid1: handle flush request correctly (bsc#998106,bsc#1020048,bsc#982783). - md/raid1: Refactor raid1_make_request (bsc#998106,bsc#1020048,bsc#982783). - mm: fix set pageblock migratetype in deferred struct page init (bnc#1027195). - mm/page_alloc: Remove useless parameter of __free_pages_boot_core (bnc#1027195). - module: move add_taint_module() to a header file (fate#313296). - net/ena: change condition for host attribute configuration (bsc#1026509). - net/ena: change driver last seen 2020-06-05 modified 2017-04-03 plugin id 99156 published 2017-04-03 reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/99156 title openSUSE Security Update : the Linux Kernel (openSUSE-2017-418) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2017-1842-1.NASL description The remote Oracle Linux host is missing a security update for the kernel package(s). last seen 2020-06-01 modified 2020-06-02 plugin id 102511 published 2017-08-16 reporter This script is Copyright (C) 2017-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/102511 title Oracle Linux 7 : kernel (ELSA-2017-1842-1) (Stack Clash) NASL family OracleVM Local Security Checks NASL id ORACLEVM_OVMSA-2017-0062.NASL description The remote OracleVM system is missing necessary patches to address critical security updates : - uek-rpm: enable CONFIG_KSPLICE. (Jamie Iles) [Orabug: 25698171] - ksplice: add sysctls for determining Ksplice features. (Jamie Iles) - signal: protect SIGNAL_UNKILLABLE from unintentional clearing. (Jamie Iles) [Orabug: 25698171] - KVM: x86: fix emulation of last seen 2020-06-01 modified 2020-06-02 plugin id 99392 published 2017-04-14 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/99392 title OracleVM 3.4 : Unbreakable / etc (OVMSA-2017-0062) NASL family OracleVM Local Security Checks NASL id ORACLEVM_OVMSA-2017-0145.NASL description The remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2017-0145 for details. last seen 2020-06-01 modified 2020-06-02 plugin id 102774 published 2017-08-25 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/102774 title OracleVM 3.4 : Unbreakable / etc (OVMSA-2017-0145) (Stack Clash) NASL family Virtuozzo Local Security Checks NASL id VIRTUOZZO_VZA-2017-010.NASL description According to the version of the vzkernel package and the readykernel-patch installed, the Virtuozzo installation on the remote host is affected by the following vulnerabilities : - 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. - A privileged user inside a container could cause a host kernel crash in udp_lib_get_port(). 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. last seen 2020-06-01 modified 2020-06-02 plugin id 97982 published 2017-03-27 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/97982 title Virtuozzo 7 : readykernel-patch (VZA-2017-010) NASL family Scientific Linux Local Security Checks NASL id SL_20170628_KERNEL_ON_SL7_X.NASL description Security Fix(es) : - A flaw was found in the way Linux kernel allocates heap memory to build the scattergather list from a fragment list(skb_shinfo(skb)->frag_list) in the socket buffer(skb_buff). The heap overflow occurred if last seen 2020-03-18 modified 2017-06-29 plugin id 101105 published 2017-06-29 reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/101105 title Scientific Linux Security Update : kernel on SL7.x x86_64 (20170628) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2017-1372.NASL description 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 Moderate. 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) : * A flaw was found in the Linux kernel last seen 2020-06-01 modified 2020-06-02 plugin id 100557 published 2017-06-01 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/100557 title CentOS 6 : kernel (CESA-2017:1372) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2017-1056.NASL description 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 last seen 2020-05-06 modified 2017-05-01 plugin id 99901 published 2017-05-01 reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/99901 title EulerOS 2.0 SP2 : kernel (EulerOS-SA-2017-1056) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3361-1.NASL description 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. last seen 2020-06-01 modified 2020-06-02 plugin id 101929 published 2017-07-24 reporter Ubuntu Security Notice (C) 2017-2019 Canonical, Inc. / NASL script (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/101929 title Ubuntu 16.04 LTS : linux-hwe vulnerabilities (USN-3361-1) NASL family Virtuozzo Local Security Checks NASL id VIRTUOZZO_VZA-2017-025.NASL description 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 : - A flaw was found in the Linux kernel last seen 2020-06-01 modified 2020-06-02 plugin id 99106 published 2017-03-31 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/99106 title Virtuozzo 6 : parallels-server-bm-release / vzkernel / etc (VZA-2017-025) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2017-1615.NASL description From Red Hat Security Advisory 2017:1615 : 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) : * A flaw was found in the way Linux kernel allocates heap memory to build the scattergather list from a fragment list(skb_shinfo(skb)->frag_list) in the socket buffer(skb_buff). The heap overflow occurred if last seen 2020-06-01 modified 2020-06-02 plugin id 101139 published 2017-06-30 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/101139 title Oracle Linux 7 : kernel (ELSA-2017-1615) NASL family SuSE Local Security Checks NASL id SUSE_SU-2017-1247-1.NASL description The SUSE Linux Enterprise 12 GA LTSS kernel was updated to receive various security and bugfixes. The following security bugs were fixed : - CVE-2015-1350: The VFS subsystem in the Linux kernel provided an incomplete set of requirements for setattr operations that underspecifies removing extended privilege attributes, which allowed local users to cause a denial of service (capability stripping) via a failed invocation of a system call, as demonstrated by using chown to remove a capability from the ping or Wireshark dumpcap program (bnc#914939). - CVE-2016-2117: The atl2_probe function in drivers/net/ethernet/atheros/atlx/atl2.c in the Linux kernel incorrectly enabled scatter/gather I/O, which allowed remote attackers to obtain sensitive information from kernel memory by reading packet data (bnc#968697). - CVE-2016-3070: The trace_writeback_dirty_page implementation in include/trace/events/writeback.h in the Linux kernel improperly interacted with mm/migrate.c, which allowed local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by triggering a certain page move (bnc#979215). - CVE-2016-5243: The tipc_nl_compat_link_dump function in net/tipc/netlink_compat.c in the Linux kernel did not properly copy a certain string, which allowed local users to obtain sensitive information from kernel stack memory by reading a Netlink message (bnc#983212). - CVE-2016-7117: Use-after-free vulnerability in the __sys_recvmmsg function in net/socket.c in the Linux kernel allowed remote attackers to execute arbitrary code via vectors involving a recvmmsg system call that is mishandled during error processing (bnc#1003077). - CVE-2016-9588: arch/x86/kvm/vmx.c in the Linux kernel mismanages the #BP and #OF exceptions, which allowed guest OS users to cause a denial of service (guest OS crash) by declining to handle an exception thrown by an L2 guest (bnc#1015703). - CVE-2016-10044: The aio_mount function in fs/aio.c in the Linux kernel did not properly restrict execute access, which made it easier for local users to bypass intended SELinux W^X policy restrictions, and consequently gain privileges, via an io_setup system call (bnc#1023992). - CVE-2016-10200: Race condition in the L2TPv3 IP Encapsulation feature in the Linux kernel allowed local users to gain privileges or cause a denial of service (use-after-free) by making multiple bind system calls without properly ascertaining whether a socket has the SOCK_ZAPPED status, related to net/l2tp/l2tp_ip.c and net/l2tp/l2tp_ip6.c (bnc#1028415). - CVE-2016-10208: The ext4_fill_super function in fs/ext4/super.c in the Linux kernel did not properly validate meta block groups, which allowed physically proximate attackers to cause a denial of service (out-of-bounds read and system crash) via a crafted ext4 image (bnc#1023377). - CVE-2017-2671: The ping_unhash function in net/ipv4/ping.c in the Linux kernel is too late in obtaining a certain lock and consequently cannot ensure that disconnect function calls are safe, which allowed local users to cause a denial of service (panic) by leveraging access to the protocol value of IPPROTO_ICMP in a socket system call (bnc#1031003). - CVE-2017-5669: The do_shmat function in ipc/shm.c in the Linux kernel did not restrict the address calculated by a certain rounding operation, which allowed 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 (bnc#1026914). - CVE-2017-5897: The ip6gre_err function in net/ipv6/ip6_gre.c in the Linux kernel allowed remote attackers to have unspecified impact via vectors involving GRE flags in an IPv6 packet, which trigger an out-of-bounds access (bnc#1023762). - CVE-2017-5970: The ipv4_pktinfo_prepare function in net/ipv4/ip_sockglue.c in the Linux kernel allowed attackers to cause a denial of service (system crash) via (1) an application that made crafted system calls or possibly (2) IPv4 traffic with invalid IP options (bnc#1024938). - CVE-2017-5986: Race condition in the sctp_wait_for_sndbuf function in net/sctp/socket.c in the Linux kernel allowed local users to cause a denial of service (assertion failure and panic) via a multithreaded application that peels off an association in a certain buffer-full state (bnc#1025235). - CVE-2017-6074: The dccp_rcv_state_process function in net/dccp/input.c in the Linux kernel mishandled DCCP_PKT_REQUEST packet data structures in the LISTEN state, which allowed local users to obtain root privileges or cause a denial of service (double free) via an application that made an IPV6_RECVPKTINFO setsockopt system call (bnc#1026024). - CVE-2017-6214: The tcp_splice_read function in net/ipv4/tcp.c in the Linux kernel allowed remote attackers to cause a denial of service (infinite loop and soft lockup) via vectors involving a TCP packet with the URG flag (bnc#1026722). - CVE-2017-6345: The LLC subsystem in the Linux kernel did not ensure that a certain destructor exists in required circumstances, which allowed local users to cause a denial of service (BUG_ON) or possibly have unspecified other impact via crafted system calls (bnc#1027190). - CVE-2017-6346: Race condition in net/packet/af_packet.c in the Linux kernel allowed local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a multithreaded application that made PACKET_FANOUT setsockopt system calls (bnc#1027189). - CVE-2017-6348: The hashbin_delete function in net/irda/irqueue.c in the Linux kernel improperly managed lock dropping, which allowed local users to cause a denial of service (deadlock) via crafted operations on IrDA devices (bnc#1027178). - CVE-2017-6353: net/sctp/socket.c in the Linux kernel did not properly restrict association peel-off operations during certain wait states, which allowed local users to cause a denial of service (invalid unlock and double free) via a multithreaded application. NOTE: this vulnerability exists because of an incorrect fix for CVE-2017-5986 (bnc#1027066). - CVE-2017-7187: The sg_ioctl function in drivers/scsi/sg.c in the Linux kernel allowed local users to cause a denial of service (stack-based buffer overflow) or possibly have unspecified other impact via a large command size in an SG_NEXT_CMD_LEN ioctl call, leading to out-of-bounds write access in the sg_write function (bnc#1030213). - CVE-2017-7261: The vmw_surface_define_ioctl function in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel did not check for a zero value of certain levels data, which allowed local users to cause a denial of service (ZERO_SIZE_PTR dereference, and GPF and possibly panic) via a crafted ioctl call for a /dev/dri/renderD* device (bnc#1031052). - CVE-2017-7294: The vmw_surface_define_ioctl function in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel did not validate addition of certain levels data, which allowed local users to trigger an integer overflow and out-of-bounds write, and cause a denial of service (system hang or crash) or possibly gain privileges, via a crafted ioctl call for a /dev/dri/renderD* device (bnc#1031440). - CVE-2017-7308: The packet_set_ring function in net/packet/af_packet.c in the Linux kernel did not properly validate certain block-size data, which allowed local users to cause a denial of service (overflow) or possibly have unspecified other impact via crafted system calls (bnc#1031579). - CVE-2017-7616: Incorrect error handling in the set_mempolicy and mbind compat syscalls in mm/mempolicy.c in the Linux kernel allowed local users to obtain sensitive information from uninitialized stack data by triggering failure of a certain bitmap operation (bnc#1033336). The update package also includes non-security fixes. See advisory for details. Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 100150 published 2017-05-12 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/100150 title SUSE SLES12 Security Update : kernel (SUSE-SU-2017:1247-1) NASL family Virtuozzo Local Security Checks NASL id VIRTUOZZO_VZLSA-2017-1372.NASL description 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 Moderate. 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) : * A flaw was found in the Linux kernel last seen 2020-06-01 modified 2020-06-02 plugin id 101477 published 2017-07-13 reporter This script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/101477 title Virtuozzo 6 : kernel / kernel-abi-whitelists / kernel-debug / etc (VZLSA-2017-1372) NASL family OracleVM Local Security Checks NASL id ORACLEVM_OVMSA-2017-0105.NASL description The remote OracleVM system is missing necessary patches to address critical security updates : - nfsd: stricter decoding of write-like NFSv2/v3 ops (J. Bruce Fields) [Orabug: 25986990] (CVE-2017-7895) - fnic: Update fnic driver version to 1.6.0.24 (John Sobecki) [Orabug: 24448585] - xen-netfront: Rework the fix for Rx stall during OOM and network stress (Dongli Zhang) [Orabug: 25450703] - xen-netfront: Fix Rx stall during network stress and OOM (Dongli Zhang) [Orabug: 25450703] - ipv6: Skip XFRM lookup if dst_entry in socket cache is valid (Jakub Sitnicki) - uek-rpm: enable CONFIG_KSPLICE. (Jamie Iles) [Orabug: 25549809] - ksplice: add sysctls for determining Ksplice features. (Jamie Iles) - signal: protect SIGNAL_UNKILLABLE from unintentional clearing. (Jamie Iles) [Orabug: 25549809] - VSOCK: Fix lockdep issue. (Dongli Zhang) [Orabug: 25559937] - VSOCK: sock_put wasn last seen 2020-06-01 modified 2020-06-02 plugin id 100237 published 2017-05-17 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/100237 title OracleVM 3.3 : Unbreakable / etc (OVMSA-2017-0105) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-3804.NASL description Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or have other impacts. - CVE-2016-9588 Jim Mattson discovered that the KVM implementation for Intel x86 processors does not properly handle #BP and #OF exceptions in an L2 (nested) virtual machine. A local attacker in an L2 guest VM can take advantage of this flaw to cause a denial of service for the L1 guest VM. - CVE-2017-2636 Alexander Popov discovered a race condition flaw in the n_hdlc line discipline that can lead to a double free. A local unprivileged user can take advantage of this flaw for privilege escalation. On systems that do not already have the n_hdlc module loaded, this can be mitigated by disabling it:echo >> /etc/modprobe.d/disable-n_hdlc.conf install n_hdlc false - CVE-2017-5669 Gareth Evans reported that privileged users can map memory at address 0 through the shmat() system call. This could make it easier to exploit other kernel security vulnerabilities via a set-UID program. - CVE-2017-5986 Alexander Popov reported a race condition in the SCTP implementation that can be used by local users to cause a denial-of-service (crash). The initial fix for this was incorrect and introduced further security issues ( CVE-2017-6353 ). This update includes a later fix that avoids those. On systems that do not already have the sctp module loaded, this can be mitigated by disabling it:echo >> /etc/modprobe.d/disable-sctp.conf install sctp false - CVE-2017-6214 Dmitry Vyukov reported a bug in the TCP implementation last seen 2020-06-01 modified 2020-06-02 plugin id 97615 published 2017-03-09 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/97615 title Debian DSA-3804-1 : linux - security update NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1484.NASL description 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 : - In the Linux kernel, Hisilicon Network Subsystem (HNS) does not consider the ETH_SS_PRIV_FLAGS case when retrieving sset_count data. This allows local users to cause a denial of service (buffer overflow and memory corruption) or possibly have unspecified other impacts.(CVE-2017-18222i1/4%0 - A flaw was found in the way the Linux kernel last seen 2020-03-19 modified 2019-05-13 plugin id 124808 published 2019-05-13 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/124808 title EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1484) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1502.NASL description According 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 seen 2020-03-19 modified 2019-05-13 plugin id 124825 published 2019-05-13 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/124825 title EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1502) NASL family OracleVM Local Security Checks NASL id ORACLEVM_OVMSA-2017-0106.NASL description The remote OracleVM system is missing necessary patches to address critical security updates : - nfsd: stricter decoding of write-like NFSv2/v3 ops (J. Bruce Fields) [Orabug: 25986995] (CVE-2017-7895) - ocfs2/o2net: o2net_listen_data_ready should do nothing if socket state is not TCP_LISTEN (Tariq Saeed) [Orabug: 25510857] - IB/CORE: sync the resouce access in fmr_pool (Wengang Wang) [Orabug: 23750748] - ipv6: Skip XFRM lookup if dst_entry in socket cache is valid (Jakub Sitnicki) [Orabug: 25534688] - uek-rpm: enable CONFIG_KSPLICE. (Jamie Iles) [Orabug: 25549845] - ksplice: add sysctls for determining Ksplice features. (Jamie Iles) - signal: protect SIGNAL_UNKILLABLE from unintentional clearing. (Jamie Iles) [Orabug: 25549845] - KVM: x86: fix emulation of last seen 2020-06-01 modified 2020-06-02 plugin id 100238 published 2017-05-17 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/100238 title OracleVM 3.2 : Unbreakable / etc (OVMSA-2017-0106) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2017-1615-1.NASL description Description of changes: - [3.10.0-514.26.1.0.1.el7.OL7] - [ipc] ipc/sem.c: bugfix for semctl(,,GETZCNT) (Manfred Spraul) [orabug 22552377] - Oracle Linux certificates (Alexey Petrenko) - Oracle Linux RHCK Module Signing Key was compiled into kernel (olkmod_signing_key.x509)(<A HREF= last seen 2020-06-01 modified 2020-06-02 plugin id 101138 published 2017-06-30 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/101138 title Oracle Linux 7 : kernel (ELSA-2017-1615-1) (Stack Clash) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3265-2.NASL description USN-3265-1 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 a use-after-free flaw existed in the filesystem encryption subsystem in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-7374) 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) 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) Alexander Popov discovered that a race condition existed in the Stream Control Transmission Protocol (SCTP) implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-5986) 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). 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 seen 2020-06-01 modified 2020-06-02 plugin id 99658 published 2017-04-25 reporter Ubuntu Security Notice (C) 2017-2019 Canonical, Inc. / NASL script (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/99658 title Ubuntu 14.04 LTS : linux-lts-xenial vulnerabilities (USN-3265-2) NASL family SuSE Local Security Checks NASL id OPENSUSE-2017-419.NASL description The openSUSE Leap 42.1 kernel was updated to 4.1.39 to receive various security and bugfixes. The following security bugs were fixed : - CVE-2017-5669: The do_shmat function in ipc/shm.c in the Linux kernel did not restrict the address calculated by a certain rounding operation, which allowed 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 (bnc#1026914). - CVE-2017-6348: The hashbin_delete function in net/irda/irqueue.c in the Linux kernel improperly manages lock dropping, which allowed local users to cause a denial of service (deadlock) via crafted operations on IrDA devices (bnc#1027178). - CVE-2017-7184: The xfrm_replay_verify_len function in net/xfrm/xfrm_user.c in the Linux kernel did not validate certain size data after an XFRM_MSG_NEWAE update, which allowed local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) by leveraging the CAP_NET_ADMIN capability, as demonstrated during a Pwn2Own competition at CanSecWest 2017 for the Ubuntu 16.10 linux-image-* package 4.8.0.41.52 (bnc#1030573). - CVE-2016-10200: Race condition in the L2TPv3 IP Encapsulation feature in the Linux kernel allowed local users to gain privileges or cause a denial of service (use-after-free) by making multiple bind system calls without properly ascertaining whether a socket has the SOCK_ZAPPED status, related to net/l2tp/l2tp_ip.c and net/l2tp/l2tp_ip6.c (bnc#1028415). - CVE-2017-2636: Race condition in drivers/tty/n_hdlc.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (double free) by setting the HDLC line discipline (bnc#1027565). - CVE-2017-6345: The LLC subsystem in the Linux kernel did not ensure that a certain destructor exists in required circumstances, which allowed local users to cause a denial of service (BUG_ON) or possibly have unspecified other impact via crafted system calls (bnc#1027190). - CVE-2017-6346: Race condition in net/packet/af_packet.c in the Linux kernel allowed local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a multithreaded application that made PACKET_FANOUT setsockopt system calls (bnc#1027189). - CVE-2017-6347: The ip_cmsg_recv_checksum function in net/ipv4/ip_sockglue.c in the Linux kernel has incorrect expectations about skb data layout, which allowed local users to cause a denial of service (buffer over-read) or possibly have unspecified other impact via crafted system calls, as demonstrated by use of the MSG_MORE flag in conjunction with loopback UDP transmission (bnc#1027179). - CVE-2017-6353: net/sctp/socket.c in the Linux kernel did not properly restrict association peel-off operations during certain wait states, which allowed local users to cause a denial of service (invalid unlock and double free) via a multithreaded application. NOTE: this vulnerability exists because of an incorrect fix for CVE-2017-5986 (bnc#1025235). - CVE-2017-6214: The tcp_splice_read function in net/ipv4/tcp.c in the Linux kernel allowed remote attackers to cause a denial of service (infinite loop and soft lockup) via vectors involving a TCP packet with the URG flag (bnc#1026722). - CVE-2016-2117: The atl2_probe function in drivers/net/ethernet/atheros/atlx/atl2.c in the Linux kernel incorrectly enables scatter/gather I/O, which allowed remote attackers to obtain sensitive information from kernel memory by reading packet data (bnc#968697). - CVE-2016-10208: The ext4_fill_super function in fs/ext4/super.c in the Linux kernel did not properly validate meta block groups, which allowed physically proximate attackers to cause a denial of service (out-of-bounds read and system crash) via a crafted ext4 image (bnc#1023377). - CVE-2017-2596: The nested_vmx_check_vmptr function in arch/x86/kvm/vmx.c in the Linux kernel improperly emulates the VMXON instruction, which allowed KVM L1 guest OS users to cause a denial of service (host OS memory consumption) by leveraging the mishandling of page references (bnc#1022785). - CVE-2017-2583: The load_segment_descriptor implementation in arch/x86/kvm/emulate.c in the Linux kernel improperly emulates a last seen 2020-06-05 modified 2017-04-03 plugin id 99157 published 2017-04-03 reporter This script is Copyright (C) 2017-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/99157 title openSUSE Security Update : the Linux Kernel (openSUSE-2017-419) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2017-3609.NASL description The remote Oracle Linux host is missing a security update for the Unbreakable Enterprise kernel package(s). last seen 2020-06-01 modified 2020-06-02 plugin id 102773 published 2017-08-25 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/102773 title Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3609) (Stack Clash) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3265-1.NASL description It was discovered that a use-after-free flaw existed in the filesystem encryption subsystem in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-7374) 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) 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) Alexander Popov discovered that a race condition existed in the Stream Control Transmission Protocol (SCTP) implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-5986) 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). 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 seen 2020-06-01 modified 2020-06-02 plugin id 99657 published 2017-04-25 reporter Ubuntu Security Notice (C) 2017-2019 Canonical, Inc. / NASL script (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/99657 title Ubuntu 16.04 LTS : linux, linux-aws, linux-gke, linux-raspi2, linux-snapdragon vulnerabilities (USN-3265-1) NASL family SuSE Local Security Checks NASL id SUSE_SU-2017-1360-1.NASL description The SUSE Linux Enterprise 12 SP1 kernel was updated to 3.12.74 to receive various security and bugfixes. Notable new/improved features : - Improved support for Hyper-V - Support for the tcp_westwood TCP scheduling algorithm The following security bugs were fixed : - CVE-2017-8106: The handle_invept function in arch/x86/kvm/vmx.c in the Linux kernel allowed privileged KVM guest OS users to cause a denial of service (NULL pointer dereference and host OS crash) via a single-context INVEPT instruction with a NULL EPT pointer (bsc#1035877). - CVE-2017-6951: The keyring_search_aux function in security/keys/keyring.c in the Linux kernel allowed local users to cause a denial of service (NULL pointer dereference and OOPS) via a request_key system call for the last seen 2020-06-01 modified 2020-06-02 plugin id 100320 published 2017-05-22 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/100320 title SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2017:1360-1) NASL family NewStart CGSL Local Security Checks NASL id NEWSTART_CGSL_NS-SA-2019-0152_KERNEL.NASL description The 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 seen 2020-06-01 modified 2020-06-02 plugin id 127425 published 2019-08-12 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/127425 title NewStart CGSL MAIN 4.05 : kernel Multiple Vulnerabilities (NS-SA-2019-0152) NASL family F5 Networks Local Security Checks NASL id F5_BIGIP_SOL81211720.NASL description 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) last seen 2020-06-01 modified 2020-06-02 plugin id 104109 published 2017-10-24 reporter This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/104109 title F5 Networks BIG-IP : Linux kernel vulnerability (K81211720)
Redhat
| advisories |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| rpms |
|
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ccf7abb93af09ad0868ae9033d1ca8108bdaec82
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ccf7abb93af09ad0868ae9033d1ca8108bdaec82
- http://www.debian.org/security/2017/dsa-3804
- http://www.debian.org/security/2017/dsa-3804
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.11
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.11
- http://www.securityfocus.com/bid/96421
- http://www.securityfocus.com/bid/96421
- http://www.securitytracker.com/id/1037897
- http://www.securitytracker.com/id/1037897
- https://access.redhat.com/errata/RHSA-2017:1372
- https://access.redhat.com/errata/RHSA-2017:1372
- https://access.redhat.com/errata/RHSA-2017:1615
- https://access.redhat.com/errata/RHSA-2017:1615
- https://access.redhat.com/errata/RHSA-2017:1616
- https://access.redhat.com/errata/RHSA-2017:1616
- https://access.redhat.com/errata/RHSA-2017:1647
- https://access.redhat.com/errata/RHSA-2017:1647
- https://github.com/torvalds/linux/commit/ccf7abb93af09ad0868ae9033d1ca8108bdaec82
- https://github.com/torvalds/linux/commit/ccf7abb93af09ad0868ae9033d1ca8108bdaec82
- https://source.android.com/security/bulletin/2017-09-01
- https://source.android.com/security/bulletin/2017-09-01