ID CVE-2016-4794
Summary Use-after-free vulnerability in mm/percpu.c in the Linux kernel through 4.6 allows local users to cause a denial of service (BUG) or possibly have unspecified other impact via crafted use of the mmap and bpf system calls.
References
Vulnerable Configurations
  • Linux Kernel 4.6
    cpe:2.3:o:linux:linux_kernel:4.6
  • Canonical Ubuntu Linux 14.04 LTS (Long-Term Support)
    cpe:2.3:o:canonical:ubuntu_linux:14.04:-:-:-:lts
  • Canonical Ubuntu Linux 16.04 LTS (Long-Term Support)
    cpe:2.3:o:canonical:ubuntu_linux:16.04:-:-:-:lts
CVSS
Base: 7.2 (as of 21-12-2016 - 14:30)
Impact:
Exploitability:
Access
VectorComplexityAuthentication
LOCAL LOW NONE
Impact
ConfidentialityIntegrityAvailability
COMPLETE COMPLETE COMPLETE
nessus via4
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2016-869.NASL
    description The openSUSE Leap 42.1 was updated to 4.1.27 to receive various security and bugfixes. The following security bugs were fixed : - CVE-2016-4997: A buffer overflow in 32bit compat_setsockopt iptables handling could lead to a local privilege escalation. (bsc#986362) - CVE-2016-5829: Multiple heap-based buffer overflows in the hiddev_ioctl_usage function in drivers/hid/usbhid/hiddev.c in the Linux kernel allow local users to cause a denial of service or possibly have unspecified other impact via a crafted (1) HIDIOCGUSAGES or (2) HIDIOCSUSAGES ioctl call (bnc#986572). - CVE-2016-4470: The key_reject_and_link function in security/keys/key.c in the Linux kernel did not ensure that a certain data structure is initialized, which allowed local users to cause a denial of service (system crash) via vectors involving a crafted keyctl request2 command (bnc#984755). - CVE-2016-4794: Use-after-free vulnerability in mm/percpu.c in the Linux kernel allowed local users to cause a denial of service (BUG) or possibly have unspecified other impact via crafted use of the mmap and bpf system calls (bnc#980265). The following non-security bugs were fixed : - Refresh patches.xen/xen-netback-coalesce: Restore copying of SKBs with head exceeding page size (bsc#978469). - Refresh patches.xen/xen3-patch-2.6.26 (fix PAT initialization). - Refresh patches.xen/xen3-patch-2.6.39 (fix ia32_compat inheritance). - Refresh patches.xen/xen3-patch-3.14: Suppress atomic file position updates for /proc/xen/xenbus (bsc#970275). - Refresh patches.xen/xen3-patch-3.16 (drop redundant addition of a comment). - Refresh patches.xen/xen3-patch-4.1.7-8. - base: make module_create_drivers_dir race-free (bnc#983977). - ipvs: count pre-established TCP states as active (bsc#970114). - net: thunderx: Fix TL4 configuration for secondary Qsets (bsc#986530). - net: thunderx: Fix link status reporting (bsc#986530).
    last seen 2019-02-21
    modified 2018-04-30
    plugin id 92308
    published 2016-07-15
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=92308
    title openSUSE Security Update : the Linux Kernel (openSUSE-2016-869)
  • NASL family OracleVM Local Security Checks
    NASL id ORACLEVM_OVMSA-2016-0162.NASL
    description The remote OracleVM system is missing necessary patches to address critical security updates : - acpi: Disable ACPI table override if securelevel is set (Linn Crosetto) [Orabug: 25058966] (CVE-2016-3699) - aacraid: Check size values after double-fetch from user (Dave Carroll) [Orabug: 25060060] (CVE-2016-6480) (CVE-2016-6480) - audit: fix a double fetch in audit_log_single_execve_arg (Paul Moore) [Orabug: 25059969] (CVE-2016-6136) - ecryptfs: don't allow mmap when the lower fs doesn't support it (Jeff Mahoney) [Orabug: 25023269] (CVE-2016-1583) (CVE-2016-1583) - Revert 'ecryptfs: forbid opening files without mmap handler' (Chuck Anderson) [Orabug: 24971921] (CVE-2016-1583) - percpu: fix synchronization between synchronous map extension and chunk destruction (Tejun Heo) [Orabug: 25060084] (CVE-2016-4794) - percpu: fix synchronization between chunk->map_extend_work and chunk destruction (Tejun Heo) [Orabug: 25060084] (CVE-2016-4794) - ALSA: timer: Fix leak in events via snd_timer_user_tinterrupt (Kangjie Lu) [Orabug: 25059898] (CVE-2016-4578) - ALSA: timer: Fix leak in events via snd_timer_user_ccallback (Kangjie Lu) [Orabug: 25059898] (CVE-2016-4578) - ALSA: timer: Fix leak in SNDRV_TIMER_IOCTL_PARAMS (Kangjie Lu) [Orabug: 25059752] (CVE-2016-4569) - Bluetooth: Fix potential NULL dereference in RFCOMM bind callback (Jaganath Kanakkassery) [Orabug: 25058894] (CVE-2015-8956) - ASN.1: Fix non-match detection failure on data overrun (David Howells) [Orabug: 25059037] (CVE-2016-2053) - mm: migrate dirty page without clear_page_dirty_for_io etc (Hugh Dickins) [Orabug: 25059188] (CVE-2016-3070) - uek-rpm ol7: change uek-rpm/ol7/update-el release value from 7.1 to 7.3 (Chuck Anderson) [Orabug: 25050614]
    last seen 2019-02-21
    modified 2018-07-24
    plugin id 95045
    published 2016-11-22
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=95045
    title OracleVM 3.4 : Unbreakable / etc (OVMSA-2016-0162)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3054-1.NASL
    description Ben Hawkes discovered an integer overflow in the Linux netfilter implementation. On systems running 32 bit kernels, a local unprivileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. (CVE-2016-3135) It was discovered that the keyring implementation in the Linux kernel did not ensure a data structure was initialized before referencing it after an error condition occurred. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-4470) Sasha Levin discovered that a use-after-free existed in the percpu allocator in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. (CVE-2016-4794) Kangjie Lu discovered an information leak in the netlink implementation of the Linux kernel. A local attacker could use this to obtain sensitive information from kernel memory. (CVE-2016-5243). 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 2019-02-21
    modified 2018-12-01
    plugin id 92864
    published 2016-08-11
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=92864
    title Ubuntu 14.04 LTS : linux-lts-xenial vulnerabilities (USN-3054-1)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3056-1.NASL
    description Ben Hawkes discovered an integer overflow in the Linux netfilter implementation. On systems running 32 bit kernels, a local unprivileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. (CVE-2016-3135) It was discovered that the keyring implementation in the Linux kernel did not ensure a data structure was initialized before referencing it after an error condition occurred. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-4470) Sasha Levin discovered that a use-after-free existed in the percpu allocator in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. (CVE-2016-4794) Kangjie Lu discovered an information leak in the netlink implementation of the Linux kernel. A local attacker could use this to obtain sensitive information from kernel memory. (CVE-2016-5243). 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 2019-02-21
    modified 2018-12-01
    plugin id 92866
    published 2016-08-11
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=92866
    title Ubuntu 16.04 LTS : linux-raspi2 vulnerabilities (USN-3056-1)
  • NASL family CentOS Local Security Checks
    NASL id CENTOS_RHSA-2016-2574.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) : * It was found that the Linux kernel's IPv6 implementation mishandled socket options. A local attacker could abuse concurrent access to the socket options to escalate their privileges, or cause a denial of service (use-after-free and system crash) via a crafted sendmsg system call. (CVE-2016-3841, Important) * Several Moderate and Low impact security issues were found in the Linux kernel. Space precludes documenting each of these issues in this advisory. Refer to the CVE links in the References section for a description of each of these vulnerabilities. (CVE-2013-4312, CVE-2015-8374, CVE-2015-8543, CVE-2015-8812, CVE-2015-8844, CVE-2015-8845, CVE-2016-2053, CVE-2016-2069, CVE-2016-2847, CVE-2016-3156, CVE-2016-4581, CVE-2016-4794, CVE-2016-5412, CVE-2016-5828, CVE-2016-5829, CVE-2016-6136, CVE-2016-6198, CVE-2016-6327, CVE-2016-6480, CVE-2015-8746, CVE-2015-8956, CVE-2016-2117, CVE-2016-2384, CVE-2016-3070, CVE-2016-3699, CVE-2016-4569, CVE-2016-4578) Red Hat would like to thank Philip Pettersson (Samsung) for reporting CVE-2016-2053; Tetsuo Handa for reporting CVE-2016-2847; the Virtuozzo kernel team and Solar Designer (Openwall) for reporting CVE-2016-3156; Justin Yackoski (Cryptonite) for reporting CVE-2016-2117; and Linn Crosetto (HP) for reporting CVE-2016-3699. The CVE-2015-8812 issue was discovered by Venkatesh Pottem (Red Hat Engineering); the CVE-2015-8844 and CVE-2015-8845 issues were discovered by Miroslav Vadkerti (Red Hat Engineering); the CVE-2016-4581 issue was discovered by Eric W. Biederman (Red Hat); the CVE-2016-6198 issue was discovered by CAI Qian (Red Hat); and the CVE-2016-3070 issue was discovered by Jan Stancek (Red Hat). Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.3 Release Notes linked from the References section.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 95321
    published 2016-11-28
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=95321
    title CentOS 7 : kernel (CESA-2016:2574)
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20161103_KERNEL_ON_SL7_X.NASL
    description Security Fix(es) : - It was found that the Linux kernel's IPv6 implementation mishandled socket options. A local attacker could abuse concurrent access to the socket options to escalate their privileges, or cause a denial of service (use-after-free and system crash) via a crafted sendmsg system call. (CVE-2016-3841, Important) (CVE-2013-4312, CVE-2015-8374, CVE-2015-8543, CVE-2015-8812, CVE-2015-8844, CVE-2015-8845, CVE-2016-2053, CVE-2016-2069, CVE-2016-2847, CVE-2016-3156, CVE-2016-4581, CVE-2016-4794, CVE-2016-5412, CVE-2016-5828, CVE-2016-5829, CVE-2016-6136, CVE-2016-6198, CVE-2016-6327, CVE-2016-6480, CVE-2015-8746, CVE-2015-8956, CVE-2016-2117, CVE-2016-2384, CVE-2016-3070, CVE-2016-3699, CVE-2016-4569, CVE-2016-4578) Additional Changes :
    last seen 2019-02-21
    modified 2018-12-28
    plugin id 95841
    published 2016-12-15
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=95841
    title Scientific Linux Security Update : kernel on SL7.x x86_64
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2016-3644.NASL
    description Description of changes: kernel-uek [4.1.12-61.1.19.el7uek] - acpi: Disable ACPI table override if securelevel is set (Linn Crosetto) [Orabug: 25058966] {CVE-2016-3699} - aacraid: Check size values after double-fetch from user (Dave Carroll) [Orabug: 25060060] {CVE-2016-6480} {CVE-2016-6480} - audit: fix a double fetch in audit_log_single_execve_arg() (Paul Moore) [Orabug: 25059969] {CVE-2016-6136} - ecryptfs: don't allow mmap when the lower fs doesn't support it (Jeff Mahoney) [Orabug: 25023269] {CVE-2016-1583} {CVE-2016-1583} - Revert 'ecryptfs: forbid opening files without mmap handler' (Chuck Anderson) [Orabug: 24971921] {CVE-2016-1583} - percpu: fix synchronization between synchronous map extension and chunk destruction (Tejun Heo) [Orabug: 25060084] {CVE-2016-4794} - percpu: fix synchronization between chunk->map_extend_work and chunk destruction (Tejun Heo) [Orabug: 25060084] {CVE-2016-4794} - ALSA: timer: Fix leak in events via snd_timer_user_tinterrupt (Kangjie Lu) [Orabug: 25059898] {CVE-2016-4578} - ALSA: timer: Fix leak in events via snd_timer_user_ccallback (Kangjie Lu) [Orabug: 25059898] {CVE-2016-4578} - ALSA: timer: Fix leak in SNDRV_TIMER_IOCTL_PARAMS (Kangjie Lu) [Orabug: 25059752] {CVE-2016-4569} - Bluetooth: Fix potential NULL dereference in RFCOMM bind callback (Jaganath Kanakkassery) [Orabug: 25058894] {CVE-2015-8956} - ASN.1: Fix non-match detection failure on data overrun (David Howells) [Orabug: 25059037] {CVE-2016-2053} - mm: migrate dirty page without clear_page_dirty_for_io etc (Hugh Dickins) [Orabug: 25059188] {CVE-2016-3070}
    last seen 2019-02-21
    modified 2016-11-22
    plugin id 95042
    published 2016-11-22
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=95042
    title Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2016-3644)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3053-1.NASL
    description A missing permission check when settings ACLs was discovered in nfsd. A local user could exploit this flaw to gain access to any file by setting an ACL. (CVE-2016-1237) It was discovered that the keyring implementation in the Linux kernel did not ensure a data structure was initialized before referencing it after an error condition occurred. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-4470) Sasha Levin discovered that a use-after-free existed in the percpu allocator in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. (CVE-2016-4794) Kangjie Lu discovered an information leak in the netlink implementation of the Linux kernel. A local attacker could use this to obtain sensitive information from kernel memory. (CVE-2016-5243). 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 2019-02-21
    modified 2018-12-01
    plugin id 92863
    published 2016-08-11
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=92863
    title Ubuntu 14.04 LTS : linux-lts-vivid vulnerabilities (USN-3053-1)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3057-1.NASL
    description Ben Hawkes discovered an integer overflow in the Linux netfilter implementation. On systems running 32 bit kernels, a local unprivileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. (CVE-2016-3135) It was discovered that the keyring implementation in the Linux kernel did not ensure a data structure was initialized before referencing it after an error condition occurred. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-4470) Sasha Levin discovered that a use-after-free existed in the percpu allocator in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. (CVE-2016-4794) Kangjie Lu discovered an information leak in the netlink implementation of the Linux kernel. A local attacker could use this to obtain sensitive information from kernel memory. (CVE-2016-5243). 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 2019-02-21
    modified 2018-12-01
    plugin id 92867
    published 2016-08-11
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=92867
    title Ubuntu 16.04 LTS : linux-snapdragon vulnerabilities (USN-3057-1)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3055-1.NASL
    description Ben Hawkes discovered an integer overflow in the Linux netfilter implementation. On systems running 32 bit kernels, a local unprivileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. (CVE-2016-3135) It was discovered that the keyring implementation in the Linux kernel did not ensure a data structure was initialized before referencing it after an error condition occurred. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-4470) Sasha Levin discovered that a use-after-free existed in the percpu allocator in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. (CVE-2016-4794) Kangjie Lu discovered an information leak in the netlink implementation of the Linux kernel. A local attacker could use this to obtain sensitive information from kernel memory. (CVE-2016-5243). 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 2019-02-21
    modified 2018-12-01
    plugin id 92865
    published 2016-08-11
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=92865
    title Ubuntu 16.04 LTS : linux vulnerabilities (USN-3055-1)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2016-2584.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) : * It was found that the Linux kernel's IPv6 implementation mishandled socket options. A local attacker could abuse concurrent access to the socket options to escalate their privileges, or cause a denial of service (use-after-free and system crash) via a crafted sendmsg system call. (CVE-2016-3841, Important) * Several Moderate and Low impact security issues were found in the Linux kernel. Space precludes documenting each of these issues in this advisory. Refer to the CVE links in the References section for a description of each of these vulnerabilities. (CVE-2013-4312, CVE-2015-8374, CVE-2015-8543, CVE-2015-8812, CVE-2015-8844, CVE-2015-8845, CVE-2016-2053, CVE-2016-2069, CVE-2016-2847, CVE-2016-3156, CVE-2016-4581, CVE-2016-4794, CVE-2016-5829, CVE-2016-6136, CVE-2016-6198, CVE-2016-6327, CVE-2016-6480, CVE-2015-8746, CVE-2015-8956, CVE-2016-2117, CVE-2016-2384, CVE-2016-3070, CVE-2016-3699, CVE-2016-4569, CVE-2016-4578) Red Hat would like to thank Philip Pettersson (Samsung) for reporting CVE-2016-2053; Tetsuo Handa for reporting CVE-2016-2847; the Virtuozzo kernel team and Solar Designer (Openwall) for reporting CVE-2016-3156; Justin Yackoski (Cryptonite) for reporting CVE-2016-2117; and Linn Crosetto (HP) for reporting CVE-2016-3699. The CVE-2015-8812 issue was discovered by Venkatesh Pottem (Red Hat Engineering); the CVE-2015-8844 and CVE-2015-8845 issues were discovered by Miroslav Vadkerti (Red Hat Engineering); the CVE-2016-4581 issue was discovered by Eric W. Biederman (Red Hat); the CVE-2016-6198 issue was discovered by CAI Qian (Red Hat); and the CVE-2016-3070 issue was discovered by Jan Stancek (Red Hat). Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.3 Release Notes linked from the References section.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 94547
    published 2016-11-04
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=94547
    title RHEL 7 : kernel-rt (RHSA-2016:2584)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2016-2574.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) : * It was found that the Linux kernel's IPv6 implementation mishandled socket options. A local attacker could abuse concurrent access to the socket options to escalate their privileges, or cause a denial of service (use-after-free and system crash) via a crafted sendmsg system call. (CVE-2016-3841, Important) * Several Moderate and Low impact security issues were found in the Linux kernel. Space precludes documenting each of these issues in this advisory. Refer to the CVE links in the References section for a description of each of these vulnerabilities. (CVE-2013-4312, CVE-2015-8374, CVE-2015-8543, CVE-2015-8812, CVE-2015-8844, CVE-2015-8845, CVE-2016-2053, CVE-2016-2069, CVE-2016-2847, CVE-2016-3156, CVE-2016-4581, CVE-2016-4794, CVE-2016-5412, CVE-2016-5828, CVE-2016-5829, CVE-2016-6136, CVE-2016-6198, CVE-2016-6327, CVE-2016-6480, CVE-2015-8746, CVE-2015-8956, CVE-2016-2117, CVE-2016-2384, CVE-2016-3070, CVE-2016-3699, CVE-2016-4569, CVE-2016-4578) Red Hat would like to thank Philip Pettersson (Samsung) for reporting CVE-2016-2053; Tetsuo Handa for reporting CVE-2016-2847; the Virtuozzo kernel team and Solar Designer (Openwall) for reporting CVE-2016-3156; Justin Yackoski (Cryptonite) for reporting CVE-2016-2117; and Linn Crosetto (HP) for reporting CVE-2016-3699. The CVE-2015-8812 issue was discovered by Venkatesh Pottem (Red Hat Engineering); the CVE-2015-8844 and CVE-2015-8845 issues were discovered by Miroslav Vadkerti (Red Hat Engineering); the CVE-2016-4581 issue was discovered by Eric W. Biederman (Red Hat); the CVE-2016-6198 issue was discovered by CAI Qian (Red Hat); and the CVE-2016-3070 issue was discovered by Jan Stancek (Red Hat). Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.3 Release Notes linked from the References section.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 94537
    published 2016-11-04
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=94537
    title RHEL 7 : kernel (RHSA-2016:2574)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2016-2574.NASL
    description From Red Hat Security Advisory 2016:2574 : 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) : * It was found that the Linux kernel's IPv6 implementation mishandled socket options. A local attacker could abuse concurrent access to the socket options to escalate their privileges, or cause a denial of service (use-after-free and system crash) via a crafted sendmsg system call. (CVE-2016-3841, Important) * Several Moderate and Low impact security issues were found in the Linux kernel. Space precludes documenting each of these issues in this advisory. Refer to the CVE links in the References section for a description of each of these vulnerabilities. (CVE-2013-4312, CVE-2015-8374, CVE-2015-8543, CVE-2015-8812, CVE-2015-8844, CVE-2015-8845, CVE-2016-2053, CVE-2016-2069, CVE-2016-2847, CVE-2016-3156, CVE-2016-4581, CVE-2016-4794, CVE-2016-5412, CVE-2016-5828, CVE-2016-5829, CVE-2016-6136, CVE-2016-6198, CVE-2016-6327, CVE-2016-6480, CVE-2015-8746, CVE-2015-8956, CVE-2016-2117, CVE-2016-2384, CVE-2016-3070, CVE-2016-3699, CVE-2016-4569, CVE-2016-4578) Red Hat would like to thank Philip Pettersson (Samsung) for reporting CVE-2016-2053; Tetsuo Handa for reporting CVE-2016-2847; the Virtuozzo kernel team and Solar Designer (Openwall) for reporting CVE-2016-3156; Justin Yackoski (Cryptonite) for reporting CVE-2016-2117; and Linn Crosetto (HP) for reporting CVE-2016-3699. The CVE-2015-8812 issue was discovered by Venkatesh Pottem (Red Hat Engineering); the CVE-2015-8844 and CVE-2015-8845 issues were discovered by Miroslav Vadkerti (Red Hat Engineering); the CVE-2016-4581 issue was discovered by Eric W. Biederman (Red Hat); the CVE-2016-6198 issue was discovered by CAI Qian (Red Hat); and the CVE-2016-3070 issue was discovered by Jan Stancek (Red Hat). Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.3 Release Notes linked from the References section.
    last seen 2019-02-21
    modified 2018-10-24
    plugin id 94697
    published 2016-11-11
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=94697
    title Oracle Linux 7 : kernel (ELSA-2016-2574)
redhat via4
advisories
  • rhsa
    id RHSA-2016:2574
  • rhsa
    id RHSA-2016:2584
rpms
  • kernel-0:3.10.0-514.el7
  • kernel-abi-whitelists-0:3.10.0-514.el7
  • kernel-bootwrapper-0:3.10.0-514.el7
  • kernel-debug-0:3.10.0-514.el7
  • kernel-debug-devel-0:3.10.0-514.el7
  • kernel-devel-0:3.10.0-514.el7
  • kernel-doc-0:3.10.0-514.el7
  • kernel-headers-0:3.10.0-514.el7
  • kernel-kdump-0:3.10.0-514.el7
  • kernel-kdump-devel-0:3.10.0-514.el7
  • kernel-tools-0:3.10.0-514.el7
  • kernel-tools-libs-0:3.10.0-514.el7
  • kernel-tools-libs-devel-0:3.10.0-514.el7
  • perf-0:3.10.0-514.el7
  • python-perf-0:3.10.0-514.el7
  • kernel-rt-0:3.10.0-514.rt56.420.el7
  • kernel-rt-debug-0:3.10.0-514.rt56.420.el7
  • kernel-rt-debug-devel-0:3.10.0-514.rt56.420.el7
  • kernel-rt-debug-kvm-0:3.10.0-514.rt56.420.el7
  • kernel-rt-devel-0:3.10.0-514.rt56.420.el7
  • kernel-rt-doc-0:3.10.0-514.rt56.420.el7
  • kernel-rt-kvm-0:3.10.0-514.rt56.420.el7
  • kernel-rt-trace-0:3.10.0-514.rt56.420.el7
  • kernel-rt-trace-devel-0:3.10.0-514.rt56.420.el7
  • kernel-rt-trace-kvm-0:3.10.0-514.rt56.420.el7
refmap via4
bid 90625
confirm
mlist
  • [linux-kernel] 20160417 Re: bpf: use-after-free in array_map_alloc
  • [oss-security] 20160512 Linux Kernel bpf related UAF
ubuntu
  • USN-3053-1
  • USN-3054-1
  • USN-3055-1
  • USN-3056-1
  • USN-3057-1
Last major update 17-01-2017 - 21:59
Published 23-05-2016 - 06:59
Last modified 04-01-2018 - 21:30
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