ID CVE-2016-6136
Summary Race condition in the audit_log_single_execve_arg function in kernel/auditsc.c in the Linux kernel through 4.7 allows local users to bypass intended character-set restrictions or disrupt system-call auditing by changing a certain string, aka a "double fetch" vulnerability.
References
Vulnerable Configurations
  • Linux Kernel 4.7
    cpe:2.3:o:linux:linux_kernel:4.7
CVSS
Base: 1.9 (as of 10-08-2016 - 13:05)
Impact:
Exploitability:
CWE CWE-362
CAPEC
  • Leveraging Race Conditions
    This attack targets a race condition occurring when multiple processes access and manipulate the same resource concurrently and the outcome of the execution depends on the particular order in which the access takes place. The attacker can leverage a race condition by "running the race", modifying the resource and modifying the normal execution flow. For instance a race condition can occur while accessing a file, the attacker can trick the system by replacing the original file with his version and cause the system to read the malicious file.
  • Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions
    This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. The typical example is the file access. The attacker can leverage a file access race condition by "running the race", meaning that he would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the attacker could do something such as replace the file and cause an escalation of privilege.
Access
VectorComplexityAuthentication
LOCAL MEDIUM NONE
Impact
ConfidentialityIntegrityAvailability
NONE PARTIAL NONE
nessus via4
  • 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 Debian Local Security Checks
    NASL id DEBIAN_DLA-609.NASL
    description This update fixes the CVEs described below. CVE-2016-3857 Chiachih Wu reported two bugs in the ARM OABI compatibility layer that can be used by local users for privilege escalation. The OABI compatibility layer is enabled in all kernel flavours for armel and armhf. CVE-2016-4470 Wade Mealing of the Red Hat Product Security Team reported that in some error cases the KEYS subsystem will dereference an uninitialised pointer. A local user can use the keyctl() system call for denial of service (crash) or possibly for privilege escalation. CVE-2016-5696 Yue Cao, Zhiyun Qian, Zhongjie Wang, Tuan Dao, and Srikanth V. Krishnamurthy of the University of California, Riverside; and Lisa M. Marvel of the United States Army Research Laboratory discovered that Linux's implementation of the TCP Challenge ACK feature results in a side channel that can be used to find TCP connections between specific IP addresses, and to inject messages into those connections. Where a service is made available through TCP, this may allow remote attackers to impersonate another connected user to the server or to impersonate the server to another connected user. In case the service uses a protocol with message authentication (e.g. TLS or SSH), this vulnerability only allows denial of service (connection failure). An attack takes tens of seconds, so short-lived TCP connections are also unlikely to be vulnerable. This may be mitigated by increasing the rate limit for TCP Challenge ACKs so that it is never exceeded: sysctl net.ipv4.tcp_challenge_ack_limit=1000000000 CVE-2016-5829 Several heap-based buffer overflow vulnerabilities were found in the hiddev driver, allowing a local user with access to a HID device to cause a denial of service or potentially escalate their privileges. CVE-2016-6136 Pengfei Wang discovered that the audit subsystem has a 'double-fetch' or 'TOCTTOU' bug in its handling of special characters in the name of an executable. Where audit logging of execve() is enabled, this allows a local user to generate misleading log messages. CVE-2016-6480 Pengfei Wang discovered that the aacraid driver for Adaptec RAID controllers has a 'double-fetch' or 'TOCTTOU' bug in its validation of 'FIB' messages passed through the ioctl() system call. This has no practical security impact in current Debian releases. CVE-2016-6828 Marco Grassi reported a 'use-after-free' bug in the TCP implementation, which can be triggered by local users. The security impact is unclear, but might include denial of service or privilege escalation. CVE-2016-7118 Marcin Szewczyk reported that calling fcntl() on a file descriptor for a directory on an aufs filesystem would result in am 'oops'. This allows local users to cause a denial of service. This is a Debian-specific regression introduced in version 3.2.81-1. For Debian 7 'Wheezy', these problems have been fixed in version 3.2.81-2. This version also fixes a build failure (bug #827561) for custom kernels with CONFIG_MODULES disabled, a regression in version 3.2.81-1. It also updates the PREEMPT_RT featureset to version 3.2.81-rt117. For Debian 8 'Jessie', CVE-2016-3857 has no impact; CVE-2016-4470 and CVE-2016-5829 were fixed in linux version 3.16.7-ckt25-2+deb8u3 or earlier; and the remaining issues are fixed in version 3.16.36-1+deb8u1. We recommend that you upgrade your linux packages. NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-07-09
    plugin id 93321
    published 2016-09-06
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=93321
    title Debian DLA-609-1 : linux security update
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3098-2.NASL
    description USN-3098-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 14.04 LTS for Ubuntu 12.04 LTS. Marco Grassi discovered a use-after-free condition could occur in the TCP retransmit queue 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-2016-6828) Vladimir Benes discovered an unbounded recursion in the VLAN and TEB Generic Receive Offload (GRO) processing implementations in the Linux kernel, A remote attacker could use this to cause a stack corruption, leading to a denial of service (system crash). (CVE-2016-7039) Pengfei Wang discovered a race condition in the audit subsystem in the Linux kernel. A local attacker could use this to corrupt audit logs or disrupt system-call auditing. (CVE-2016-6136) Pengfei Wang discovered a race condition in the Adaptec AAC RAID controller driver in the Linux kernel when handling ioctl()s. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-6480). 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 93955
    published 2016-10-11
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=93955
    title Ubuntu 12.04 LTS : linux-lts-trusty vulnerabilities (USN-3098-2)
  • NASL family OracleVM Local Security Checks
    NASL id ORACLEVM_OVMSA-2016-0163.NASL
    description The remote OracleVM system is missing necessary patches to address critical security updates : - aacraid: Check size values after double-fetch from user (Dave Carroll) [Orabug: 25060050] (CVE-2016-6480) (CVE-2016-6480) - IB/srpt: Simplify srpt_handle_tsk_mgmt (Bart Van Assche) [Orabug: 25060011] (CVE-2016-6327) - audit: fix a double fetch in audit_log_single_execve_arg (Paul Moore) [Orabug: 25059945] (CVE-2016-6136) - ALSA: timer: Fix leak in events via snd_timer_user_tinterrupt (Kangjie Lu) [Orabug: 25059899] (CVE-2016-4578) - ALSA: timer: Fix leak in events via snd_timer_user_ccallback (Kangjie Lu) [Orabug: 25059899] (CVE-2016-4578) - ALSA: timer: Fix leak in SNDRV_TIMER_IOCTL_PARAMS (Kangjie Lu) [Orabug: 25059753] (CVE-2016-4569) - acpi: Disable ACPI table override if securelevel is set (Linn Crosetto) [Orabug: 25058991] (CVE-2016-3699) - Bluetooth: Fix potential NULL dereference in RFCOMM bind callback (Jaganath Kanakkassery) [Orabug: 25058903] (CVE-2015-8956) - ASN.1: Fix non-match detection failure on data overrun (David Howells) [Orabug: 25059046] (CVE-2016-2053) - mm: migrate dirty page without clear_page_dirty_for_io etc (Hugh Dickins) [Orabug: 25059194] (CVE-2016-3070)
    last seen 2019-02-21
    modified 2018-09-05
    plugin id 95046
    published 2016-11-22
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=95046
    title OracleVM 3.3 : Unbreakable / etc (OVMSA-2016-0163)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3098-1.NASL
    description Vladimir Benes discovered an unbounded recursion in the VLAN and TEB Generic Receive Offload (GRO) processing implementations in the Linux kernel, A remote attacker could use this to cause a stack corruption, leading to a denial of service (system crash). (CVE-2016-7039) Marco Grassi discovered a use-after-free condition could occur in the TCP retransmit queue 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-2016-6828) Pengfei Wang discovered a race condition in the audit subsystem in the Linux kernel. A local attacker could use this to corrupt audit logs or disrupt system-call auditing. (CVE-2016-6136) Pengfei Wang discovered a race condition in the Adaptec AAC RAID controller driver in the Linux kernel when handling ioctl()s. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-6480). 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 93954
    published 2016-10-11
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=93954
    title Ubuntu 14.04 LTS : linux vulnerabilities (USN-3098-1)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3084-1.NASL
    description Pengfei Wang discovered a race condition in the audit subsystem in the Linux kernel. A local attacker could use this to corrupt audit logs or disrupt system-call auditing. (CVE-2016-6136) It was discovered that the powerpc and powerpc64 hypervisor-mode KVM implementation in the Linux kernel for did not properly maintain state about transactional memory. An unprivileged attacker in a guest could cause a denial of service (CPU lockup) in the host OS. (CVE-2016-5412) Pengfei Wang discovered a race condition in the Chrome OS embedded controller device driver in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-6156). 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 93604
    published 2016-09-20
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=93604
    title Ubuntu 16.04 LTS : linux vulnerabilities (USN-3084-1)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2016-3645.NASL
    description Description of changes: kernel-uek [3.8.13-118.14.2.el7uek] - aacraid: Check size values after double-fetch from user (Dave Carroll) [Orabug: 25060050] {CVE-2016-6480} {CVE-2016-6480} - IB/srpt: Simplify srpt_handle_tsk_mgmt() (Bart Van Assche) [Orabug: 25060011] {CVE-2016-6327} - audit: fix a double fetch in audit_log_single_execve_arg() (Paul Moore) [Orabug: 25059945] {CVE-2016-6136} - ALSA: timer: Fix leak in events via snd_timer_user_tinterrupt (Kangjie Lu) [Orabug: 25059899] {CVE-2016-4578} - ALSA: timer: Fix leak in events via snd_timer_user_ccallback (Kangjie Lu) [Orabug: 25059899] {CVE-2016-4578} - ALSA: timer: Fix leak in SNDRV_TIMER_IOCTL_PARAMS (Kangjie Lu) [Orabug: 25059753] {CVE-2016-4569} - acpi: Disable ACPI table override if securelevel is set (Linn Crosetto) [Orabug: 25058991] {CVE-2016-3699} - Bluetooth: Fix potential NULL dereference in RFCOMM bind callback (Jaganath Kanakkassery) [Orabug: 25058903] {CVE-2015-8956} - ASN.1: Fix non-match detection failure on data overrun (David Howells) [Orabug: 25059046] {CVE-2016-2053} - mm: migrate dirty page without clear_page_dirty_for_io etc (Hugh Dickins) [Orabug: 25059194] {CVE-2016-3070}
    last seen 2019-02-21
    modified 2018-09-05
    plugin id 95043
    published 2016-11-22
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=95043
    title Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2016-3645)
  • 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 Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2016-3646.NASL
    description Description of changes: [2.6.39-400.290.2.el6uek] - aacraid: Check size values after double-fetch from user (Dave Carroll) [Orabug: 25060055] {CVE-2016-6480} {CVE-2016-6480} - audit: fix a double fetch in audit_log_single_execve_arg() (Paul Moore) [Orabug: 25059962] {CVE-2016-6136} - ecryptfs: don't allow mmap when the lower fs doesn't support it (Jeff Mahoney) [Orabug: 24971918] {CVE-2016-1583} {CVE-2016-1583} - ALSA: timer: Fix leak in events via snd_timer_user_tinterrupt (Kangjie Lu) [Orabug: 25059900] {CVE-2016-4578} - ALSA: timer: Fix leak in events via snd_timer_user_ccallback (Kangjie Lu) [Orabug: 25059900] {CVE-2016-4578} - ALSA: timer: Fix leak in SNDRV_TIMER_IOCTL_PARAMS (Kangjie Lu) [Orabug: 25059755] {CVE-2016-4569} - Bluetooth: Fix potential NULL dereference in RFCOMM bind callback (Jaganath Kanakkassery) [Orabug: 25058905] {CVE-2015-8956} - mm: migrate dirty page without clear_page_dirty_for_io etc (Hugh Dickins) [Orabug: 25059195] {CVE-2016-3070}
    last seen 2019-02-21
    modified 2016-11-22
    plugin id 95044
    published 2016-11-22
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=95044
    title Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2016-3646)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3084-3.NASL
    description Pengfei Wang discovered a race condition in the audit subsystem in the Linux kernel. A local attacker could use this to corrupt audit logs or disrupt system-call auditing. (CVE-2016-6136) It was discovered that the powerpc and powerpc64 hypervisor-mode KVM implementation in the Linux kernel for did not properly maintain state about transactional memory. An unprivileged attacker in a guest could cause a denial of service (CPU lockup) in the host OS. (CVE-2016-5412) Pengfei Wang discovered a race condition in the Chrome OS embedded controller device driver in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-6156). 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 93606
    published 2016-09-20
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=93606
    title Ubuntu 16.04 LTS : linux-raspi2 vulnerabilities (USN-3084-3)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3084-2.NASL
    description USN-3084-1 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. Pengfei Wang discovered a race condition in the audit subsystem in the Linux kernel. A local attacker could use this to corrupt audit logs or disrupt system-call auditing. (CVE-2016-6136) It was discovered that the powerpc and powerpc64 hypervisor-mode KVM implementation in the Linux kernel for did not properly maintain state about transactional memory. An unprivileged attacker in a guest could cause a denial of service (CPU lockup) in the host OS. (CVE-2016-5412) Pengfei Wang discovered a race condition in the Chrome OS embedded controller device driver in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-6156). 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 93605
    published 2016-09-20
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=93605
    title Ubuntu 14.04 LTS : linux-lts-xenial vulnerabilities (USN-3084-2)
  • 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 OracleVM Local Security Checks
    NASL id ORACLEVM_OVMSA-2016-0181.NASL
    description The remote OracleVM system is missing necessary patches to address critical security updates : - x86/iopl/64: properly context-switch IOPL on Xen PV (Andy Lutomirski) [Orabug: 25269184] (CVE-2016-3157) - net: Fix use after free in the recvmmsg exit path (Arnaldo Carvalho de Melo) [Orabug: 25298618] (CVE-2016-7117) - logging errors that get masked to EIO inside drivers/block/loop.c (Manjunath Patil) [Orabug: 21962821] - sched/core: Clear the root_domain cpumasks in init_rootdomain (Xunlei Pang) [Orabug: 23518650] - bio allocation failure due to bio_get_nr_vecs (Darrick J. Wong) - mlx4: avoid ABBA deadlock (Wengang Wang) [Orabug: 23538548] - mlx4: avoid multiple free on id_map_ent (Wengang Wang) [Orabug: 25022815] - sctp: validate chunk len before actually using it (Marcelo Ricardo Leitner) [Orabug: 25142906] (CVE-2016-9555) - NVMe: reduce queue depth as workaround for Samsung EPIC SQ errata (Ashok Vairavan) [Orabug: 25138146] - RDS: Drop the connection as part of cancel to avoid hangs (Avinash Repaka) [Orabug: 24951873] - aacraid: Check size values after double-fetch from user (Dave Carroll) [Orabug: 25060055] (CVE-2016-6480) (CVE-2016-6480) - audit: fix a double fetch in audit_log_single_execve_arg (Paul Moore) [Orabug: 25059962] (CVE-2016-6136) - ecryptfs: don't allow mmap when the lower fs doesn't support it (Jeff Mahoney) [Orabug: 24971918] (CVE-2016-1583) (CVE-2016-1583) - ALSA: timer: Fix leak in events via snd_timer_user_tinterrupt (Kangjie Lu) [Orabug: 25059900] (CVE-2016-4578) - ALSA: timer: Fix leak in events via snd_timer_user_ccallback (Kangjie Lu) [Orabug: 25059900] (CVE-2016-4578) - ALSA: timer: Fix leak in SNDRV_TIMER_IOCTL_PARAMS (Kangjie Lu) [Orabug: 25059755] (CVE-2016-4569) - Bluetooth: Fix potential NULL dereference in RFCOMM bind callback (Jaganath Kanakkassery) [Orabug: 25058905] (CVE-2015-8956) - mm: migrate dirty page without clear_page_dirty_for_io etc (Hugh Dickins) [Orabug: 25059195] [CVE-2016-3070
    last seen 2019-02-21
    modified 2018-07-24
    plugin id 96073
    published 2016-12-22
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96073
    title OracleVM 3.2 : Unbreakable / etc (OVMSA-2016-0181)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2016-30E3636E79.NASL
    description Update to latest upstream stable release, Linux v4.6.5. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2016-10-18
    plugin id 92799
    published 2016-08-09
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=92799
    title Fedora 24 : kernel (2016-30e3636e79)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2017-0307.NASL
    description From Red Hat Security Advisory 2017:0307 : 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) : * When creating audit records for parameters to executed children processes, an attacker can convince the Linux kernel audit subsystem can create corrupt records which may allow an attacker to misrepresent or evade logging of executing commands. (CVE-2016-6136, Moderate) * A flaw was found in the Linux kernel's implementation of the SCTP protocol. A remote attacker could trigger an out-of-bounds read with an offset of up to 64kB potentially causing the system to crash. (CVE-2016-9555, Moderate) Bug Fix(es) : * The qlnic driver previously attempted to fetch pending transmission descriptors before all writes were complete, which lead to firmware hangs. With this update, the qlcnic driver has been fixed to complete all writes before the hardware fetches any pending transmission descriptors. As a result, the firmware no longer hangs with the qlcnic driver. (BZ#1403143) * Previously, when a NFS share was mounted, the file-system (FS) cache was incorrectly enabled even when the '-o fsc' option was not used in the mount command. Consequently, the cachefilesd service stored files in the NFS share even when not instructed to by the user. With this update, NFS does not use the FS cache if not instructed by the '-o fsc' option. As a result, NFS no longer enables caching if the '-o fsc' option is not used. (BZ#1399172) * Previously, an NFS client and NFS server got into a NFS4 protocol loop involving a WRITE action and a NFS4ERR_EXPIRED response when the current_fileid counter got to the wraparound point by overflowing the value of 32 bits. This update fixes the NFS server to handle the current_fileid wraparound. As a result, the described NFS4 protocol loop no longer occurs. (BZ#1399174) * Previously, certain configurations of the Hewlett Packard Smart Array (HPSA) devices caused hardware to be set offline incorrectly when the HPSA driver was expected to wait for existing I/O operations to complete. Consequently, a kernel panic occurred. This update prevents the described problem. As a result, the kernel panic no longer occurs. (BZ#1399175) * Previously, memory corruption by copying data into the wrong memory locations sometimes occurred, because the __copy_tofrom_user() function was returning incorrect values. This update fixes the __copy_tofrom_user() function so that it no longer returns larger values than the number of bytes it was asked to copy. As a result, memory corruption no longer occurs in he described scenario. (BZ#1398185) * Previously, guest virtual machines (VMs) on a Hyper-V server cluster got in some cases rebooted during the graceful node failover test, because the host kept sending heartbeat packets independently of guests responding to them. This update fixes the bug by properly responding to all the heartbeat messages in the queue, even if they are pending. As a result, guest VMs no longer get rebooted under the described circumstances. (BZ#1397739) * When the 'punching hole' feature of the fallocate utility was used on an ext4 file system inode with extent depth of 1, the extent tree of the inode sometimes became corrupted. With this update, the underlying source code has been fixed, and extent tree corruption no longer occurs in the described situation. (BZ#1397808)
    last seen 2019-02-21
    modified 2018-07-24
    plugin id 97371
    published 2017-02-24
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=97371
    title Oracle Linux 6 : kernel (ELSA-2017-0307)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3084-4.NASL
    description Pengfei Wang discovered a race condition in the audit subsystem in the Linux kernel. A local attacker could use this to corrupt audit logs or disrupt system-call auditing. (CVE-2016-6136) It was discovered that the powerpc and powerpc64 hypervisor-mode KVM implementation in the Linux kernel for did not properly maintain state about transactional memory. An unprivileged attacker in a guest could cause a denial of service (CPU lockup) in the host OS. (CVE-2016-5412) Pengfei Wang discovered a race condition in the Chrome OS embedded controller device driver in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-6156). 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 93607
    published 2016-09-20
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=93607
    title Ubuntu 16.04 LTS : linux-snapdragon vulnerabilities (USN-3084-4)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3097-1.NASL
    description Marco Grassi discovered a use-after-free condition could occur in the TCP retransmit queue 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-2016-6828) Pengfei Wang discovered a race condition in the audit subsystem in the Linux kernel. A local attacker could use this to corrupt audit logs or disrupt system-call auditing. (CVE-2016-6136) Pengfei Wang discovered a race condition in the Adaptec AAC RAID controller driver in the Linux kernel when handling ioctl()s. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-6480). 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 93953
    published 2016-10-11
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=93953
    title Ubuntu 12.04 LTS : linux vulnerabilities (USN-3097-1)
  • 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)
  • 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'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. - It was discovered that a remote attacker could leverage the generation of IPv6 atomic fragments to trigger the use of fragmentation in an arbitrary IPv6 flow (in scenarios in which actual fragmentation of packets is not needed) and could subsequently perform any type of a fragmentation-based attack against legacy IPv6 nodes that do not implement RFC6946. - It was found that the blk_rq_map_user_iov() function in the Linux kernel's block device implementation did not properly restrict the type of iterator, which could allow a local attacker to read or write to arbitrary kernel memory locations or cause a denial of service (use-after-free) by leveraging write access to a /dev/sg device. - A flaw was found in the Linux kernel's implementation of the SCTP protocol. A remote attacker could trigger an out-of-bounds read with an offset of up to 64kB potentially causing the system to crash. - A flaw was found in the Linux networking subsystem where a local attacker with CAP_NET_ADMIN capabilities could cause an out-of-bounds memory access by creating a smaller-than-expected ICMP header and sending to its destination via sendto(). - It was found that when file permissions were modified via chmod and the user modifying them was not in the owning group or capable of CAP_FSETID, the setgid bit would be cleared. Setting a POSIX ACL via setxattr sets the file permissions as well as the new ACL, but doesn't clear the setgid bit in a similar way. This could allow a local user to gain group privileges via certain setgid applications. - It was found that when the gcc stack protector was enabled, reading the /proc/keys file could cause a panic in the Linux kernel due to stack corruption. This happened because an incorrect buffer size was used to hold a 64-bit timeout value rendered as weeks. - A race condition flaw was found in the ioctl_send_fib() function in the Linux kernel's aacraid implementation. A local attacker could use this flaw to cause a denial of service (out-of-bounds access or system crash) by changing a certain size value. - When creating audit records for parameters to executed children processes, an attacker can convince the Linux kernel audit subsystem can create corrupt records which may allow an attacker to misrepresent or evade logging of executing commands. - A flaw was discovered in the way the Linux kernel dealt with paging structures. When the kernel invalidated a paging structure that was not in use locally, it could, in principle, race against another CPU that is switching to a process that uses the paging structure in question. A local user could use a thread running with a stale cached virtual->physical translation to potentially escalate their privileges if the translation in question were writable and the physical page got reused for something critical (for example, a page table). - A flaw was found in the USB-MIDI Linux kernel driver: a double-free error could be triggered for the 'umidi' object. An attacker with physical access to the system could use this flaw to escalate their privileges. 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 2019-02-21
    modified 2019-01-14
    plugin id 99106
    published 2017-03-31
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99106
    title Virtuozzo 6 : parallels-server-bm-release / vzkernel / etc (VZA-2017-025)
  • NASL family OracleVM Local Security Checks
    NASL id ORACLEVM_OVMSA-2016-0167.NASL
    description The remote OracleVM system is missing necessary patches to address critical security updates : - aacraid: Check size values after double-fetch from user (Dave Carroll) [Orabug: 25060055] (CVE-2016-6480) (CVE-2016-6480) - audit: fix a double fetch in audit_log_single_execve_arg (Paul Moore) [Orabug: 25059962] (CVE-2016-6136) - ecryptfs: don't allow mmap when the lower fs doesn't support it (Jeff Mahoney) [Orabug: 24971918] (CVE-2016-1583) (CVE-2016-1583) - ALSA: timer: Fix leak in events via snd_timer_user_tinterrupt (Kangjie Lu) [Orabug: 25059900] (CVE-2016-4578) - ALSA: timer: Fix leak in events via snd_timer_user_ccallback (Kangjie Lu) [Orabug: 25059900] (CVE-2016-4578) - ALSA: timer: Fix leak in SNDRV_TIMER_IOCTL_PARAMS (Kangjie Lu) [Orabug: 25059755] (CVE-2016-4569) - Bluetooth: Fix potential NULL dereference in RFCOMM bind callback (Jaganath Kanakkassery) [Orabug: 25058905] (CVE-2015-8956) - mm: migrate dirty page without clear_page_dirty_for_io etc (Hugh Dickins) [Orabug: 25059195] (CVE-2016-3070) - intel_idle: Fix C0 state for BDW (Guru Anbalagane) [Orabug: 25024180] - intel_idle: update Broadwell cstates (Brian Maly) [Orabug: 25024180] - Revert 'ecryptfs: forbid opening files without mmap handler' (Brian Maly) [Orabug: 24971918] - ocfs2: o2hb: fix hb hung time (Junxiao Bi) - ocfs2: o2hb: don't negotiate if last hb fail (Junxiao Bi) - ocfs2: o2hb: add some user/debug log (Junxiao Bi) - ocfs2: o2hb: add NEGOTIATE_APPROVE message (Junxiao Bi) - ocfs2: o2hb: add NEGO_TIMEOUT message (Junxiao Bi) - ocfs2: o2hb: add negotiate timer (Junxiao Bi) - ecryptfs: forbid opening files without mmap handler (Jann Horn) [Orabug: 24971919] (CVE-2016-1583) - RDS: IB: fix panic with handlers running post teardown (Santosh Shilimkar) [Orabug: 24314773] - ocfs2: improve recovery performance (Junxiao Bi) [Orabug: 24589532] - ocfs2: call ocfs2_journal_access_di before ocfs2_journal_dirty in ocfs2_write_end_nolock (Junxiao Bi) [Orabug: 24606864]
    last seen 2019-02-21
    modified 2018-07-24
    plugin id 95366
    published 2016-11-28
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=95366
    title OracleVM 3.2 : Unbreakable / etc (OVMSA-2016-0167)
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20170223_KERNEL_ON_SL6_X.NASL
    description Security Fix(es) : - When creating audit records for parameters to executed children processes, an attacker can convince the Linux kernel audit subsystem can create corrupt records which may allow an attacker to misrepresent or evade logging of executing commands. (CVE-2016-6136, Moderate) - A flaw was found in the Linux kernel's implementation of the SCTP protocol. A remote attacker could trigger an out-of-bounds read with an offset of up to 64kB potentially causing the system to crash. (CVE-2016-9555, Moderate) Bug Fix(es) : - The qlnic driver previously attempted to fetch pending transmission descriptors before all writes were complete, which lead to firmware hangs. With this update, the qlcnic driver has been fixed to complete all writes before the hardware fetches any pending transmission descriptors. As a result, the firmware no longer hangs with the qlcnic driver. - Previously, when a NFS share was mounted, the file-system (FS) cache was incorrectly enabled even when the '-o fsc' option was not used in the mount command. Consequently, the cachefilesd service stored files in the NFS share even when not instructed to by the user. With this update, NFS does not use the FS cache if not instructed by the '-o fsc' option. As a result, NFS no longer enables caching if the '-o fsc' option is not used. - Previously, an NFS client and NFS server got into a NFS4 protocol loop involving a WRITE action and a NFS4ERR_EXPIRED response when the current_fileid counter got to the wraparound point by overflowing the value of 32 bits. This update fixes the NFS server to handle the current_fileid wraparound. As a result, the described NFS4 protocol loop no longer occurs. - Previously, certain configurations of the Hewlett Packard Smart Array (HPSA) devices caused hardware to be set offline incorrectly when the HPSA driver was expected to wait for existing I/O operations to complete. Consequently, a kernel panic occurred. This update prevents the described problem. As a result, the kernel panic no longer occurs. - Previously, memory corruption by copying data into the wrong memory locations sometimes occurred, because the __copy_tofrom_user() function was returning incorrect values. This update fixes the __copy_tofrom_user() function so that it no longer returns larger values than the number of bytes it was asked to copy. As a result, memory corruption no longer occurs in he described scenario. - Previously, guest virtual machines (VMs) on a Hyper-V server cluster got in some cases rebooted during the graceful node failover test, because the host kept sending heartbeat packets independently of guests responding to them. This update fixes the bug by properly responding to all the heartbeat messages in the queue, even if they are pending. As a result, guest VMs no longer get rebooted under the described circumstances. - When the 'punching hole' feature of the fallocate utility was used on an ext4 file system inode with extent depth of 1, the extent tree of the inode sometimes became corrupted. With this update, the underlying source code has been fixed, and extent tree corruption no longer occurs in the described situation.
    last seen 2019-02-21
    modified 2018-12-27
    plugin id 97378
    published 2017-02-24
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=97378
    title Scientific Linux Security Update : kernel on SL6.x i386/x86_64
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DSA-3659.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-2016-5696 Yue Cao, Zhiyun Qian, Zhongjie Wang, Tuan Dao, and Srikanth V. Krishnamurthy of the University of California, Riverside; and Lisa M. Marvel of the United States Army Research Laboratory discovered that Linux's implementation of the TCP Challenge ACK feature results in a side channel that can be used to find TCP connections between specific IP addresses, and to inject messages into those connections. Where a service is made available through TCP, this may allow remote attackers to impersonate another connected user to the server or to impersonate the server to another connected user. In case the service uses a protocol with message authentication (e.g. TLS or SSH), this vulnerability only allows denial of service (connection failure). An attack takes tens of seconds, so short-lived TCP connections are also unlikely to be vulnerable. This may be mitigated by increasing the rate limit for TCP Challenge ACKs so that it is never exceeded: sysctl net.ipv4.tcp_challenge_ack_limit=1000000000 - CVE-2016-6136 Pengfei Wang discovered that the audit subsystem has a 'double-fetch' or 'TOCTTOU' bug in its handling of special characters in the name of an executable. Where audit logging of execve() is enabled, this allows a local user to generate misleading log messages. - CVE-2016-6480 Pengfei Wang discovered that the aacraid driver for Adaptec RAID controllers has a 'double-fetch' or 'TOCTTOU' bug in its validation of 'FIB' messages passed through the ioctl() system call. This has no practical security impact in current Debian releases. - CVE-2016-6828 Marco Grassi reported a 'use-after-free' bug in the TCP implementation, which can be triggered by local users. The security impact is unclear, but might include denial of service or privilege escalation.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 93324
    published 2016-09-06
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=93324
    title Debian DSA-3659-1 : linux - security update
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2016-754E4768D8.NASL
    description Update to latest upstream stable release, Linux v4.6.5. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2016-10-18
    plugin id 92804
    published 2016-08-09
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=92804
    title Fedora 23 : kernel (2016-754e4768d8)
  • NASL family OracleVM Local Security Checks
    NASL id ORACLEVM_OVMSA-2017-0057.NASL
    description The remote OracleVM system is missing necessary patches to address critical security updates : please see Oracle VM Security Advisory OVMSA-2017-0057 for details.
    last seen 2019-02-21
    modified 2018-07-24
    plugin id 99163
    published 2017-04-03
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=99163
    title OracleVM 3.3 : Unbreakable / etc (OVMSA-2017-0057) (Dirty COW)
  • NASL family F5 Networks Local Security Checks
    NASL id F5_BIGIP_SOL90803619.NASL
    description Race condition in the audit_log_single_execve_arg function in kernel/auditsc.c in the Linux kernel through 4.7 allows local users to bypass intended character-set restrictions or disrupt system-call auditing by changing a certain string, aka a 'double fetch' vulnerability. (CVE-2016-6136) Impact Locally authenticated users may be able to bypass audit restrictions resulting in the disclosure of local information.
    last seen 2019-02-21
    modified 2019-01-04
    plugin id 100168
    published 2017-05-15
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=100168
    title F5 Networks BIG-IP : Linux kernel vulnerability (K90803619)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2017-0307.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) : * When creating audit records for parameters to executed children processes, an attacker can convince the Linux kernel audit subsystem can create corrupt records which may allow an attacker to misrepresent or evade logging of executing commands. (CVE-2016-6136, Moderate) * A flaw was found in the Linux kernel's implementation of the SCTP protocol. A remote attacker could trigger an out-of-bounds read with an offset of up to 64kB potentially causing the system to crash. (CVE-2016-9555, Moderate) Bug Fix(es) : * The qlnic driver previously attempted to fetch pending transmission descriptors before all writes were complete, which lead to firmware hangs. With this update, the qlcnic driver has been fixed to complete all writes before the hardware fetches any pending transmission descriptors. As a result, the firmware no longer hangs with the qlcnic driver. (BZ#1403143) * Previously, when a NFS share was mounted, the file-system (FS) cache was incorrectly enabled even when the '-o fsc' option was not used in the mount command. Consequently, the cachefilesd service stored files in the NFS share even when not instructed to by the user. With this update, NFS does not use the FS cache if not instructed by the '-o fsc' option. As a result, NFS no longer enables caching if the '-o fsc' option is not used. (BZ# 1399172) * Previously, an NFS client and NFS server got into a NFS4 protocol loop involving a WRITE action and a NFS4ERR_EXPIRED response when the current_fileid counter got to the wraparound point by overflowing the value of 32 bits. This update fixes the NFS server to handle the current_fileid wraparound. As a result, the described NFS4 protocol loop no longer occurs. (BZ#1399174) * Previously, certain configurations of the Hewlett Packard Smart Array (HPSA) devices caused hardware to be set offline incorrectly when the HPSA driver was expected to wait for existing I/O operations to complete. Consequently, a kernel panic occurred. This update prevents the described problem. As a result, the kernel panic no longer occurs. (BZ#1399175) * Previously, memory corruption by copying data into the wrong memory locations sometimes occurred, because the __copy_tofrom_user() function was returning incorrect values. This update fixes the __copy_tofrom_user() function so that it no longer returns larger values than the number of bytes it was asked to copy. As a result, memory corruption no longer occurs in he described scenario. (BZ#1398185) * Previously, guest virtual machines (VMs) on a Hyper-V server cluster got in some cases rebooted during the graceful node failover test, because the host kept sending heartbeat packets independently of guests responding to them. This update fixes the bug by properly responding to all the heartbeat messages in the queue, even if they are pending. As a result, guest VMs no longer get rebooted under the described circumstances. (BZ#1397739) * When the 'punching hole' feature of the fallocate utility was used on an ext4 file system inode with extent depth of 1, the extent tree of the inode sometimes became corrupted. With this update, the underlying source code has been fixed, and extent tree corruption no longer occurs in the described situation. (BZ#1397808)
    last seen 2019-02-21
    modified 2018-12-20
    plugin id 97373
    published 2017-02-24
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=97373
    title RHEL 6 : kernel (RHSA-2017:0307)
  • NASL family Virtuozzo Local Security Checks
    NASL id VIRTUOZZO_VZLSA-2017-0307.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) : * When creating audit records for parameters to executed children processes, an attacker can convince the Linux kernel audit subsystem can create corrupt records which may allow an attacker to misrepresent or evade logging of executing commands. (CVE-2016-6136, Moderate) * A flaw was found in the Linux kernel's implementation of the SCTP protocol. A remote attacker could trigger an out-of-bounds read with an offset of up to 64kB potentially causing the system to crash. (CVE-2016-9555, Moderate) Bug Fix(es) : * The qlnic driver previously attempted to fetch pending transmission descriptors before all writes were complete, which lead to firmware hangs. With this update, the qlcnic driver has been fixed to complete all writes before the hardware fetches any pending transmission descriptors. As a result, the firmware no longer hangs with the qlcnic driver. (BZ#1403143) * Previously, when a NFS share was mounted, the file-system (FS) cache was incorrectly enabled even when the '-o fsc' option was not used in the mount command. Consequently, the cachefilesd service stored files in the NFS share even when not instructed to by the user. With this update, NFS does not use the FS cache if not instructed by the '-o fsc' option. As a result, NFS no longer enables caching if the '-o fsc' option is not used. (BZ# 1399172) * Previously, an NFS client and NFS server got into a NFS4 protocol loop involving a WRITE action and a NFS4ERR_EXPIRED response when the current_fileid counter got to the wraparound point by overflowing the value of 32 bits. This update fixes the NFS server to handle the current_fileid wraparound. As a result, the described NFS4 protocol loop no longer occurs. (BZ#1399174) * Previously, certain configurations of the Hewlett Packard Smart Array (HPSA) devices caused hardware to be set offline incorrectly when the HPSA driver was expected to wait for existing I/O operations to complete. Consequently, a kernel panic occurred. This update prevents the described problem. As a result, the kernel panic no longer occurs. (BZ#1399175) * Previously, memory corruption by copying data into the wrong memory locations sometimes occurred, because the __copy_tofrom_user() function was returning incorrect values. This update fixes the __copy_tofrom_user() function so that it no longer returns larger values than the number of bytes it was asked to copy. As a result, memory corruption no longer occurs in he described scenario. (BZ#1398185) * Previously, guest virtual machines (VMs) on a Hyper-V server cluster got in some cases rebooted during the graceful node failover test, because the host kept sending heartbeat packets independently of guests responding to them. This update fixes the bug by properly responding to all the heartbeat messages in the queue, even if they are pending. As a result, guest VMs no longer get rebooted under the described circumstances. (BZ#1397739) * When the 'punching hole' feature of the fallocate utility was used on an ext4 file system inode with extent depth of 1, the extent tree of the inode sometimes became corrupted. With this update, the underlying source code has been fixed, and extent tree corruption no longer occurs in the described situation. (BZ#1397808) Note that Tenable Network Security has attempted to extract the preceding description block directly from the corresponding Red Hat security advisory. Virtuozzo provides no description for VZLSA advisories. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-11-20
    plugin id 101427
    published 2017-07-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=101427
    title Virtuozzo 6 : kernel / kernel-abi-whitelists / kernel-debug / etc (VZLSA-2017-0307)
  • NASL family CentOS Local Security Checks
    NASL id CENTOS_RHSA-2017-0307.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) : * When creating audit records for parameters to executed children processes, an attacker can convince the Linux kernel audit subsystem can create corrupt records which may allow an attacker to misrepresent or evade logging of executing commands. (CVE-2016-6136, Moderate) * A flaw was found in the Linux kernel's implementation of the SCTP protocol. A remote attacker could trigger an out-of-bounds read with an offset of up to 64kB potentially causing the system to crash. (CVE-2016-9555, Moderate) Bug Fix(es) : * The qlnic driver previously attempted to fetch pending transmission descriptors before all writes were complete, which lead to firmware hangs. With this update, the qlcnic driver has been fixed to complete all writes before the hardware fetches any pending transmission descriptors. As a result, the firmware no longer hangs with the qlcnic driver. (BZ#1403143) * Previously, when a NFS share was mounted, the file-system (FS) cache was incorrectly enabled even when the '-o fsc' option was not used in the mount command. Consequently, the cachefilesd service stored files in the NFS share even when not instructed to by the user. With this update, NFS does not use the FS cache if not instructed by the '-o fsc' option. As a result, NFS no longer enables caching if the '-o fsc' option is not used. (BZ# 1399172) * Previously, an NFS client and NFS server got into a NFS4 protocol loop involving a WRITE action and a NFS4ERR_EXPIRED response when the current_fileid counter got to the wraparound point by overflowing the value of 32 bits. This update fixes the NFS server to handle the current_fileid wraparound. As a result, the described NFS4 protocol loop no longer occurs. (BZ#1399174) * Previously, certain configurations of the Hewlett Packard Smart Array (HPSA) devices caused hardware to be set offline incorrectly when the HPSA driver was expected to wait for existing I/O operations to complete. Consequently, a kernel panic occurred. This update prevents the described problem. As a result, the kernel panic no longer occurs. (BZ#1399175) * Previously, memory corruption by copying data into the wrong memory locations sometimes occurred, because the __copy_tofrom_user() function was returning incorrect values. This update fixes the __copy_tofrom_user() function so that it no longer returns larger values than the number of bytes it was asked to copy. As a result, memory corruption no longer occurs in he described scenario. (BZ#1398185) * Previously, guest virtual machines (VMs) on a Hyper-V server cluster got in some cases rebooted during the graceful node failover test, because the host kept sending heartbeat packets independently of guests responding to them. This update fixes the bug by properly responding to all the heartbeat messages in the queue, even if they are pending. As a result, guest VMs no longer get rebooted under the described circumstances. (BZ#1397739) * When the 'punching hole' feature of the fallocate utility was used on an ext4 file system inode with extent depth of 1, the extent tree of the inode sometimes became corrupted. With this update, the underlying source code has been fixed, and extent tree corruption no longer occurs in the described situation. (BZ#1397808)
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 97389
    published 2017-02-27
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=97389
    title CentOS 6 : kernel (CESA-2017:0307)
redhat via4
advisories
  • rhsa
    id RHSA-2016:2574
  • rhsa
    id RHSA-2016:2584
  • rhsa
    id RHSA-2017:0307
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
  • kernel-0:2.6.32-642.15.1.el6
  • kernel-abi-whitelists-0:2.6.32-642.15.1.el6
  • kernel-bootwrapper-0:2.6.32-642.15.1.el6
  • kernel-debug-0:2.6.32-642.15.1.el6
  • kernel-debug-devel-0:2.6.32-642.15.1.el6
  • kernel-devel-0:2.6.32-642.15.1.el6
  • kernel-doc-0:2.6.32-642.15.1.el6
  • kernel-firmware-0:2.6.32-642.15.1.el6
  • kernel-headers-0:2.6.32-642.15.1.el6
  • kernel-kdump-0:2.6.32-642.15.1.el6
  • kernel-kdump-devel-0:2.6.32-642.15.1.el6
  • perf-0:2.6.32-642.15.1.el6
  • python-perf-0:2.6.32-642.15.1.el6
refmap via4
bid 91558
bugtraq 20160704 [CVE-2016-6136] Double-Fetch Vulnerability in Linux-4.6/kernel/auditsc.c
confirm
Last major update 28-11-2016 - 15:30
Published 06-08-2016 - 16:59
Last modified 04-01-2018 - 21:31
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