The remote Oracle Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2015-0864 advisory.

    - [infiniband] core: Prevent integer overflow in ib_umem_get address arithmetic (Doug Ledford) [1181173     1179327] {CVE-2014-8159}
    - [security] keys: close race between key lookup and freeing (Radomir Vrbovsky) [1179849 1179850]     {CVE-2014-9529}
    - [net] sctp: fix slab corruption from use after free on INIT collisions (Daniel Borkmann) [1196587     1135425] {CVE-2015-1421}
    - [x86] kvm: vmx: invalid host cr4 handling across vm entries (Jacob Tanenbaum) [1153326 1153327]     {CVE-2014-3690}
    - [fs] isofs: Fix unchecked printing of ER records (Radomir Vrbovsky) [1180481 1180492] {CVE-2014-9584}
    - [media] ttusb-dec: buffer overflow in ioctl (Alexander Gordeev) [1170971 1167115] {CVE-2014-8884}
    - [kernel] trace: insufficient syscall number validation in perf and ftrace subsystems (Jacob Tanenbaum)     [1161567 1161568] {CVE-2014-7826 CVE-2014-7825}
    - [mm] memcg: do not allow task about to OOM kill to bypass the limit (Johannes Weiner) [1198110 1088334]     {CVE-2014-8171}
    - [mm] memcg: do not declare OOM from __GFP_NOFAIL allocations (Johannes Weiner) [1198110 1088334]     {CVE-2014-8171}
    - [fs] buffer: move allocation failure loop into the allocator (Johannes Weiner) [1198110 1088334]     {CVE-2014-8171}
    - [mm] memcg: handle non-error OOM situations more gracefully (Johannes Weiner) [1198110 1088334]     {CVE-2014-8171}
    - [mm] memcg: do not trap chargers with full callstack on OOM (Johannes Weiner) [1198110 1088334]     {CVE-2014-8171}
    - [mm] memcg: rework and document OOM waiting and wakeup (Johannes Weiner) [1198110 1088334]     {CVE-2014-8171}
    - [mm] memcg: enable memcg OOM killer only for user faults (Johannes Weiner) [1198110 1088334]     {CVE-2014-8171}
    - [x86] mm: finish user fault error path with fatal signal (Johannes Weiner) [1198110 1088334]     {CVE-2014-8171}
    - [mm] pass userspace fault flag to generic fault handler (Johannes Weiner) [1198110 1088334]     {CVE-2014-8171}
    - [s390] mm: do not invoke OOM killer on kernel fault OOM (Johannes Weiner) [1198110 1088334]     {CVE-2014-8171}
    - [powerpc] mm: remove obsolete init OOM protection (Johannes Weiner) [1198110 1088334] {CVE-2014-8171}
    - [powerpc] mm: invoke oom-killer from remaining unconverted page fault handlers (Johannes Weiner)     [1198110 1088334] {CVE-2014-8171}
    - [security] selinux: Permit bounded transitions under NO_NEW_PRIVS or NOSUID (Denys Vlasenko) [1104567     1104568] {CVE-2014-3215}
    - [security] Add PR_<GET, SET>_NO_NEW_PRIVS to prevent execve from granting privs (Denys Vlasenko)     [1104567 1104568] {CVE-2014-3215}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

* A flaw was found in the way seunshare, a utility for running executables under a different security context, used the capng_lock functionality of the libcap-ng library. The subsequent invocation of suid root binaries that relied on the fact that the setuid() system call, among others, also sets the saved set-user-ID when dropping the binaries' process privileges, could allow a local, unprivileged user to potentially escalate their privileges on the system. Note: the fix for this issue is the kernel part of the overall fix, and introduces the PR_SET_NO_NEW_PRIVS functionality and the related SELinux exec transitions support. (CVE-2014-3215, Important)

* A use-after-free flaw was found in the way the Linux kernel's SCTP implementation handled authentication key reference counting during INIT collisions. A remote attacker could use this flaw to crash the system or, potentially, escalate their privileges on the system.
(CVE-2015-1421, Important)

* It was found that the Linux kernel's KVM implementation did not ensure that the host CR4 control register value remained unchanged across VM entries on the same virtual CPU. A local, unprivileged user could use this flaw to cause a denial of service on the system.
(CVE-2014-3690, Moderate)

* An out-of-bounds memory access flaw was found in the syscall tracing functionality of the Linux kernel's perf subsystem. A local, unprivileged user could use this flaw to crash the system.
(CVE-2014-7825, Moderate)

* An out-of-bounds memory access flaw was found in the syscall tracing functionality of the Linux kernel's ftrace subsystem. On a system with ftrace syscall tracing enabled, a local, unprivileged user could use this flaw to crash the system, or escalate their privileges.
(CVE-2014-7826, Moderate)

* It was found that the Linux kernel memory resource controller's (memcg) handling of OOM (out of memory) conditions could lead to deadlocks. An attacker able to continuously spawn new processes within a single memory-constrained cgroup during an OOM event could use this flaw to lock up the system. (CVE-2014-8171, Moderate)

* A race condition flaw was found in the way the Linux kernel keys management subsystem performed key garbage collection. A local attacker could attempt accessing a key while it was being garbage collected, which would cause the system to crash. (CVE-2014-9529, Moderate)

* A stack-based buffer overflow flaw was found in the TechnoTrend/Hauppauge DEC USB device driver. A local user with write access to the corresponding device could use this flaw to crash the kernel or, potentially, elevate their privileges on the system.
(CVE-2014-8884, Low)

* An information leak flaw was found in the way the Linux kernel's ISO9660 file system implementation accessed data on an ISO9660 image with RockRidge Extension Reference (ER) records. An attacker with physical access to the system could use this flaw to disclose up to 255 bytes of kernel memory. (CVE-2014-9584, Low)

Red Hat would like to thank Andy Lutomirski for reporting CVE-2014-3215 and CVE-2014-3690, Robert Swiecki for reporting CVE-2014-7825 and CVE-2014-7826, and Carl Henrik Lunde for reporting CVE-2014-9584. The CVE-2015-1421 issue was discovered by Sun Baoliang of Red Hat.

This update also fixes several bugs. Documentation for these changes is available from the Technical Notes document linked to in the References section.

All kernel users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.

* A flaw was found in the way seunshare, a utility for running executables under a different security context, used the capng_lock functionality of the libcap-ng library. The subsequent invocation of suid root binaries that relied on the fact that the setuid() system call, among others, also sets the saved set-user-ID when dropping the binaries' process privileges, could allow a local, unprivileged user to potentially escalate their privileges on the system. Note: the fix for this issue is the kernel part of the overall fix, and introduces the PR_SET_NO_NEW_PRIVS functionality and the related SELinux exec transitions support. (CVE-2014-3215, Important)

* A use-after-free flaw was found in the way the Linux kernel's SCTP implementation handled authentication key reference counting during INIT collisions. A remote attacker could use this flaw to crash the system or, potentially, escalate their privileges on the system.
(CVE-2015-1421, Important)

* It was found that the Linux kernel's KVM implementation did not ensure that the host CR4 control register value remained unchanged across VM entries on the same virtual CPU. A local, unprivileged user could use this flaw to cause a denial of service on the system.
(CVE-2014-3690, Moderate)

* An out-of-bounds memory access flaw was found in the syscall tracing functionality of the Linux kernel's perf subsystem. A local, unprivileged user could use this flaw to crash the system.
(CVE-2014-7825, Moderate)

* An out-of-bounds memory access flaw was found in the syscall tracing functionality of the Linux kernel's ftrace subsystem. On a system with ftrace syscall tracing enabled, a local, unprivileged user could use this flaw to crash the system, or escalate their privileges.
(CVE-2014-7826, Moderate)

* It was found that the Linux kernel memory resource controller's (memcg) handling of OOM (out of memory) conditions could lead to deadlocks. An attacker able to continuously spawn new processes within a single memory- constrained cgroup during an OOM event could use this flaw to lock up the system. (CVE-2014-8171, Moderate)

* A race condition flaw was found in the way the Linux kernel keys management subsystem performed key garbage collection. A local attacker could attempt accessing a key while it was being garbage collected, which would cause the system to crash. (CVE-2014-9529, Moderate)

* A stack-based buffer overflow flaw was found in the TechnoTrend/Hauppauge DEC USB device driver. A local user with write access to the corresponding device could use this flaw to crash the kernel or, potentially, elevate their privileges on the system.
(CVE-2014-8884, Low)

* An information leak flaw was found in the way the Linux kernel's ISO9660 file system implementation accessed data on an ISO9660 image with RockRidge Extension Reference (ER) records. An attacker with physical access to the system could use this flaw to disclose up to 255 bytes of kernel memory. (CVE-2014-9584, Low)

The system must be rebooted for this update to take effect.

The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2015-3033 advisory.

    - isofs: Fix unchecked printing of ER records (Jan Kara)  [Orabug: 20930552]  {CVE-2014-9584}
    - selinux: Permit bounded transitions under NO_NEW_PRIVS or NOSUID. (Stephen Smalley)  [Orabug: 20930502]     {CVE-2014-3215}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
82981	Oracle Linux 6 : kernel (ELSA-2015-0864)	Nessus	Oracle Linux Local Security Checks	2015/4/22	2026/2/9	high
82985	RHEL 6 : kernel (RHSA-2015:0864)	Nessus	Red Hat Local Security Checks	2015/4/22	2021/2/5	high
82988	Scientific Linux Security Update : kernel on SL6.x i386/x86_64 (20150421)	Nessus	Scientific Linux Local Security Checks	2015/4/22	2021/1/14	high
83046	Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2015-3033)	Nessus	Oracle Linux Local Security Checks	2015/4/24	2026/2/9	critical

检测

插件搜索

high

high

high

critical