The remote Oracle Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2015-1081 advisory.

    - [fs] pipe: fix pipe corruption and iovec overrun on partial copy (Seth Jennings) [1202860 1185166]     {CVE-2015-1805}
    - [x86] crypto: aesni - fix memory usage in GCM decryption (Kurt Stutsman) [1213329 1213330]     {CVE-2015-3331}
    - [fs] isofs: infinite loop in CE record entries (Jacob Tanenbaum) [1175243 1175245] {CVE-2014-9420}
    - [x86] vdso: ASLR bruteforce possible for vdso library (Jacob Tanenbaum) [1184896 1184897]     {CVE-2014-9585}
    - [x86] switch_to(): Load TLS descriptors before switching DS and ES (Denys Vlasenko) [1177353 1177354]     {CVE-2014-9419}
    - [infiniband] core: Prevent integer overflow in ib_umem_get address arithmetic (Doug Ledford) [1181173     1179327] {CVE-2014-8159}

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.

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2015:1081 advisory.

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

    * It was found that the Linux kernel's implementation of vectored pipe read     and write functionality did not take into account the I/O vectors that were     already processed when retrying after a failed atomic access operation,     potentially resulting in memory corruption due to an I/O vector array     overrun. A local, unprivileged user could use this flaw to crash the system     or, potentially, escalate their privileges on the system. (CVE-2015-1805,     Important)

    * A buffer overflow flaw was found in the way the Linux kernel's Intel     AES-NI instructions optimized version of the RFC4106 GCM mode decryption     functionality handled fragmented packets. A remote attacker could use this     flaw to crash, or potentially escalate their privileges on, a system over a     connection with an active AES-GCM mode IPSec security association.
    (CVE-2015-3331, Important)

    * An information leak flaw was found in the way the Linux kernel changed     certain segment registers and thread-local storage (TLS) during a context     switch. A local, unprivileged user could use this flaw to leak the user     space TLS base address of an arbitrary process. (CVE-2014-9419, Low)

    * It was found that the Linux kernel's ISO file system implementation did     not correctly limit the traversal of Rock Ridge extension Continuation     Entries (CE). An attacker with physical access to the system could use this     flaw to trigger an infinite loop in the kernel, resulting in a denial of     service. (CVE-2014-9420, Low)

    * An information leak flaw was found in the way the Linux kernel's Virtual     Dynamic Shared Object (vDSO) implementation performed address     randomization. A local, unprivileged user could use this flaw to leak     kernel memory addresses to user-space. (CVE-2014-9585, Low)

    Red Hat would like to thank Carl Henrik Lunde for reporting     CVE-2014-9420. The security impact of the CVE-2015-1805 issue was     discovered by Red Hat.

    This update also fixes several bugs and adds various enhancements.
    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 and add these     enhancements. The system must be rebooted for this update to take effect.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise 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.

Jan Beulich discovered the Xen virtual machine subsystem of the Linux kernel did not properly restrict access to PCI command registers. A local guest user could exploit this flaw to cause a denial of service (host crash). (CVE-2015-2150)

A privilege escalation was discovered in the fork syscall via the int80 entry on 64 bit kernels with 32 bit emulation support. An unprivileged local attacker could exploit this flaw to increase their privileges on the system. (CVE-2015-2830)

A memory corruption issue was discovered in AES decryption when using the Intel AES-NI accelerated code path. A remote attacker could exploit this flaw to cause a denial of service (system crash) or potentially escalate privileges on Intel base machines with AEC-GCM mode IPSec security association. (CVE-2015-3331)

Wen Xu discovered a use-after-free flaw in the Linux kernel's ipv4 ping support. A local user could exploit this flaw to cause a denial of service (system crash) or gain administrative privileges on the system. (CVE-2015-3636)

Carl H Lunde discovered missing sanity checks in the the Linux kernel's UDF file system(CONFIG_UDF_FS). A local attack could exploit this flaw to cause a denial of service (system crash) by using a corrupted filesystem image. (CVE-2015-4167).

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.

The SUSE Linux Enterprise Server 11 SP2 LTSS kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

  - CVE-2015-5707: An integer overflow in the SCSI generic     driver could be potentially used by local attackers to     crash the kernel or execute code.

  - CVE-2015-2830: arch/x86/kernel/entry_64.S in the Linux     kernel did not prevent the TS_COMPAT flag from reaching     a user-mode task, which might have allowed local users     to bypass the seccomp or audit protection mechanism via     a crafted application that uses the (1) fork or (2)     close system call, as demonstrated by an attack against     seccomp before 3.16 (bnc#926240).

  - CVE-2015-0777: drivers/xen/usbback/usbback.c in the     Linux kernel allowed guest OS users to obtain sensitive     information from uninitialized locations in host OS     kernel memory via unspecified vectors (bnc#917830).

  - CVE-2015-2150: Xen and the Linux kernel did not properly     restrict access to PCI command registers, which might     have allowed local guest users to cause a denial of     service (non-maskable interrupt and host crash) by     disabling the (1) memory or (2) I/O decoding for a PCI     Express device and then accessing the device, which     triggers an Unsupported Request (UR) response     (bnc#919463).

  - CVE-2015-5364: A remote denial of service (hang) via UDP     flood with incorrect package checksums was fixed.
    (bsc#936831).

  - CVE-2015-5366: A remote denial of service (unexpected     error returns) via UDP flood with incorrect package     checksums was fixed. (bsc#936831).

  - CVE-2015-1420: CVE-2015-1420: Race condition in the     handle_to_path function in fs/fhandle.c in the Linux     kernel allowed local users to bypass intended size     restrictions and trigger read operations on additional     memory locations by changing the handle_bytes value of a     file handle during the execution of this function     (bnc#915517).

  - CVE-2015-4700: A local user could have created a bad     instruction in the JIT processed BPF code, leading to a     kernel crash (bnc#935705).

  - CVE-2015-1805: The (1) pipe_read and (2) pipe_write     implementations in fs/pipe.c in the Linux kernel did not     properly consider the side effects of failed
    __copy_to_user_inatomic and __copy_from_user_inatomic     calls, which allowed local users to cause a denial of     service (system crash) or possibly gain privileges via a     crafted application, aka an 'I/O vector array overrun'     (bnc#933429).

  - CVE-2015-3331: The __driver_rfc4106_decrypt function in     arch/x86/crypto/aesni-intel_glue.c in the Linux kernel     did not properly determine the memory locations used for     encrypted data, which allowed context-dependent     attackers to cause a denial of service (buffer overflow     and system crash) or possibly execute arbitrary code by     triggering a crypto API call, as demonstrated by use of     a libkcapi test program with an AF_ALG(aead) socket     (bnc#927257).

  - CVE-2015-2922: The ndisc_router_discovery function in     net/ipv6/ndisc.c in the Neighbor Discovery (ND) protocol     implementation in the IPv6 stack in the Linux kernel     allowed remote attackers to reconfigure a hop-limit     setting via a small hop_limit value in a Router     Advertisement (RA) message (bnc#922583).

  - CVE-2015-2041: net/llc/sysctl_net_llc.c in the Linux     kernel used an incorrect data type in a sysctl table,     which allowed local users to obtain potentially     sensitive information from kernel memory or possibly     have unspecified other impact by accessing a sysctl     entry (bnc#919007).

  - CVE-2015-3636: The ping_unhash function in     net/ipv4/ping.c in the Linux kernel did not initialize a     certain list data structure during an unhash operation,     which allowed local users to gain privileges or cause a     denial of service (use-after-free and system crash) by     leveraging the ability to make a SOCK_DGRAM socket     system call for the IPPROTO_ICMP or IPPROTO_ICMPV6     protocol, and then making a connect system call after a     disconnect (bnc#929525).

  - CVE-2014-8086: Race condition in the     ext4_file_write_iter function in fs/ext4/file.c in the     Linux kernel allowed local users to cause a denial of     service (file unavailability) via a combination of a     write action and an F_SETFL fcntl operation for the     O_DIRECT flag (bnc#900881).

  - CVE-2014-8159: The InfiniBand (IB) implementation in the     Linux kernel did not properly restrict use of User Verbs     for registration of memory regions, which allowed local     users to access arbitrary physical memory locations, and     consequently cause a denial of service (system crash) or     gain privileges, by leveraging permissions on a uverbs     device under /dev/infiniband/ (bnc#914742).

  - CVE-2014-9683: Off-by-one error in the     ecryptfs_decode_from_filename function in     fs/ecryptfs/crypto.c in the eCryptfs subsystem in the     Linux kernel allowed local users to cause a denial of     service (buffer overflow and system crash) or possibly     gain privileges via a crafted filename (bnc#918333).

  - CVE-2015-2042: net/rds/sysctl.c in the Linux kernel used     an incorrect data type in a sysctl table, which allowed     local users to obtain potentially sensitive information     from kernel memory or possibly have unspecified other     impact by accessing a sysctl entry (bnc#919018).

  - CVE-2015-1421: Use-after-free vulnerability in the     sctp_assoc_update function in net/sctp/associola.c in     the Linux kernel allowed remote attackers to cause a     denial of service (slab corruption and panic) or     possibly have unspecified other impact by triggering an     INIT collision that leads to improper handling of     shared-key data (bnc#915577).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote MiracleLinux 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2015-178:05 advisory.

    The kernel package contains the Linux kernel (vmlinuz), the core of any     Linux operating system. The kernel handles the basic functions     of the operating system: memory allocation, process allocation, device     input and output, etc.
    Security issues fixed with this release:
    CVE-2014-9419     CVE-2014-9420     CVE-2014-9585     CVE-2015-1805     CVE-2015-3331

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

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

The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2015-3036 advisory.

    - crypto: aesni - fix memory usage in GCM decryption (Stephan Mueller)  [Orabug: 21077389]     {CVE-2015-3331}
    - xen/pciback: Don't disable PCI_COMMAND on PCI device reset. (Konrad Rzeszutek Wilk)  [Orabug: 20807440]     {CVE-2015-2150}
    - 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}
    - Add PR_{GET,SET}_NO_NEW_PRIVS to prevent execve from granting privs (Andy Lutomirski)  [Orabug:
    20930518]  {CVE-2014-3215}
    - IB/core: Prevent integer overflow in ib_umem_get address arithmetic (Shachar Raindel)  [Orabug:
    20788393]  {CVE-2014-8159} {CVE-2014-8159}
    - xen-pciback: limit guest control of command register (Jan Beulich)  [Orabug: 20704156]  {CVE-2015-2150}     {CVE-2015-2150}

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.

The remote OracleVM system is missing necessary patches to address critical security updates :

  - crypto: aesni

  - fix memory usage in GCM decryption (Stephan Mueller)     [Orabug: 21077385] (CVE-2015-3331)

  - xen/pciback: Don't disable PCI_COMMAND on PCI device     reset. (Konrad Rzeszutek Wilk) [Orabug: 20807438]     (CVE-2015-2150)

  - xen-blkfront: fix accounting of reqs when migrating     (Roger Pau Monne) [Orabug: 20860817]

  - Doc/cpu-hotplug: Specify race-free way to register CPU     hotplug callbacks (Srivatsa S. Bhat) [Orabug: 20917697]

  - net/iucv/iucv.c: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) [Orabug: 20917697]

  - net/core/flow.c: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) [Orabug: 20917697]

  - mm, vmstat: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) [Orabug: 20917697] 

  - profile: Fix CPU hotplug callback registration (Srivatsa     S. Bhat) 

  - trace, ring-buffer: Fix CPU hotplug callback     registration (Srivatsa S. Bhat) [Orabug: 20917697]

  - hwmon, via-cputemp: Fix CPU hotplug callback     registration (Srivatsa S. Bhat) 

  - hwmon, coretemp: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) [Orabug: 20917697]

  - octeon, watchdog: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) [Orabug: 20917697]

  - oprofile, nmi-timer: Fix CPU hotplug callback     registration (Srivatsa S. Bhat) [Orabug: 20917697]

  - intel-idle: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) [Orabug: 20917697]

  - drivers/base/topology.c: Fix CPU hotplug callback     registration (Srivatsa S. Bhat) [Orabug: 20917697]

  - acpi-cpufreq: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) [Orabug: 20917697]

  - scsi, fcoe: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) [Orabug: 20917697] 

  - scsi, bnx2fc: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) [Orabug: 20917697]

  - scsi, bnx2i: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) [Orabug: 20917697]

  - arm64, debug-monitors: Fix CPU hotplug callback     registration (Srivatsa S. Bhat) [Orabug: 20917697]

  - arm64, hw_breakpoint.c: Fix CPU hotplug callback     registration (Srivatsa S. Bhat) [Orabug: 20917697]

  - x86, kvm: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) [Orabug: 20917697]

  - x86, oprofile, nmi: Fix CPU hotplug callback     registration (Srivatsa S. Bhat) [Orabug: 20917697]

  - x86, pci, amd-bus: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) [Orabug: 20917697]

  - x86, hpet: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) [Orabug: 20917697]

  - x86, intel, cacheinfo: Fix CPU hotplug callback     registration (Srivatsa S. Bhat) [Orabug: 20917697]

  - x86, amd, ibs: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) [Orabug: 20917697]

  - x86, therm_throt.c: Fix CPU hotplug callback     registration (Srivatsa S. Bhat) [Orabug: 20917697]

  - x86, mce: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) [Orabug: 20917697]

  - x86, intel, uncore: Fix CPU hotplug callback     registration (Srivatsa S. Bhat) [Orabug: 20917697]

  - x86, vsyscall: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) [Orabug: 20917697]

  - x86, cpuid: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) [Orabug: 20917697]

  - x86, msr: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) [Orabug: 20917697]

  - powerpc, sysfs: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) 

  - sparc, sysfs: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) [Orabug: 20917697]

  - s390, smp: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) [Orabug: 20917697]

  - s390, cacheinfo: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) 

  - arm, hw-breakpoint: Fix CPU hotplug callback     registration (Srivatsa S. Bhat) [Orabug: 20917697]

  - ia64, err-inject: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) [Orabug: 20917697]

  - ia64, topology: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) [Orabug: 20917697]

  - ia64, palinfo: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) [Orabug: 20917697]

  - CPU hotplug, perf: Fix CPU hotplug callback registration     (Srivatsa S. Bhat) [Orabug: 20917697]

  - CPU hotplug: Provide lockless versions of callback     registration functions (Srivatsa S. Bhat) [Orabug:
    20917697]

  - isofs: Fix unchecked printing of ER records (Jan Kara)     [Orabug: 20930551] (CVE-2014-9584)

  - KEYS: close race between key lookup and freeing (Sasha     Levin) [Orabug: 20930548] (CVE-2014-9529)     (CVE-2014-9529)

  - mm: memcg: do not allow task about to OOM kill to bypass     the limit (Johannes Weiner) [Orabug: 20930539]     (CVE-2014-8171)

  - mm: memcg: do not declare OOM from __GFP_NOFAIL     allocations (Johannes Weiner) [Orabug: 20930539]     (CVE-2014-8171)

  - fs: buffer: move allocation failure loop into the     allocator (Johannes Weiner) [Orabug: 20930539]     (CVE-2014-8171)

  - mm: memcg: handle non-error OOM situations more     gracefully (Johannes Weiner) [Orabug: 20930539]     (CVE-2014-8171)

  - mm: memcg: do not trap chargers with full callstack on     OOM (Johannes Weiner) [Orabug: 20930539] (CVE-2014-8171)

  - mm: memcg: rework and document OOM waiting and wakeup     (Johannes Weiner) [Orabug: 20930539] (CVE-2014-8171)

  - mm: memcg: enable memcg OOM killer only for user faults     (Johannes Weiner) [Orabug: 20930539] (CVE-2014-8171)

  - x86: finish user fault error path with fatal signal     (Johannes Weiner) [Orabug: 20930539] (CVE-2014-8171)

  - arch: mm: pass userspace fault flag to generic fault     handler (Johannes Weiner) [Orabug: 20930539]     (CVE-2014-8171)

  - selinux: Permit bounded transitions under NO_NEW_PRIVS     or NOSUID. (Stephen Smalley) [Orabug: 20930501]     (CVE-2014-3215)

  - IB/core: Prevent integer overflow in ib_umem_get address     arithmetic (Shachar Raindel) [Orabug: 20799875]     (CVE-2014-8159) (CVE-2014-8159)

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-2615-1 advisory.

    Alexandre Oliva reported a race condition flaw in the btrfs file system's handling of extended attributes     (xattrs). A local attacker could exploit this flaw to bypass ACLs and potentially escalate privileges.
    (CVE-2014-9710)

    A memory corruption issue was discovered in AES decryption when using the Intel AES-NI accelerated code     path. A remote attacker could exploit this flaw to cause a denial of service (system crash) or potentially     escalate privileges on Intel base machines with AEC-GCM mode IPSec security association. (CVE-2015-3331)

    A flaw was discovered in the Linux kernel's IPv4 networking when using TCP fast open to initiate a     connection. An unprivileged local user could exploit this flaw to cause a denial of service (system     crash). (CVE-2015-3332)

Tenable has extracted the preceding description block directly from the Ubuntu 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 two security issues and three bugs are now available for Red Hat Enterprise Linux 6.5 Extended Update Support.

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.

* It was found that the Linux kernel's implementation of vectored pipe read and write functionality did not take into account the I/O vectors that were already processed when retrying after a failed atomic access operation, potentially resulting in memory corruption due to an I/O vector array overrun. A local, unprivileged user could use this flaw to crash the system or, potentially, escalate their privileges on the system. (CVE-2015-1805, Important)

* A buffer overflow flaw was found in the way the Linux kernel's Intel AES-NI instructions optimized version of the RFC4106 GCM mode decryption functionality handled fragmented packets. A remote attacker could use this flaw to crash, or potentially escalate their privileges on, a system over a connection with an active AES-GCM mode IPSec security association. (CVE-2015-3331, Important)

The security impact of the CVE-2015-1805 issue was discovered by Red Hat.

This update also fixes the following bugs :

* Parallel extending direct I/O writes to a file could previously race to update the size of the file. If executed in an incorrect order, the file size could move backwards and push a previously completed write beyond the end of the file, which resulted in losing the write. With this update, file size updates always execute in appropriate order, thus fixing this bug. (BZ#1218498)

* When the load rose and run queues were busy due to the effects of the enqueue_entity() function, tasks with large sched_entity.vruntime values could previously be prevented from using the CPU time. A patch eliminating the entity_key() function in the sched_fair.c latency value has been backported from upstream, and all tasks are now provided with fair CPU runtime. (BZ# 1219121)

* Previously, running the clock_gettime() function quickly in a loop could result in a jump back in time. Consequently, programs could behave unexpectedly when they assumed that clock_getime() returned an equal or greater time in subsequent calls. With this update, if the time delta between calls is negative, the clock is no longer updated.
As a result, a subsequent call to clock_gettime() is guaranteed to return a time greater than or equal to a previous call. (BZ#1219500)

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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
84073	Oracle Linux 6 : kernel (ELSA-2015-1081)	Nessus	Oracle Linux Local Security Checks	2015/6/10	2026/2/9	critical
84075	RHEL 6 : kernel (RHSA-2015:1081)	Nessus	Red Hat Local Security Checks	2015/6/10	2025/4/15	high
84119	Ubuntu 12.04 LTS : linux vulnerabilities (USN-2631-1)	Nessus	Ubuntu Local Security Checks	2015/6/11	2021/1/19	high
85764	SUSE SLES11 Security Update : kernel (SUSE-SU-2015:1478-1)	Nessus	SuSE Local Security Checks	2015/9/3	2021/1/19	medium
289934	MiracleLinux 4 : kernel-2.6.32-504.23.4.el6 (AXSA:2015-178:05)	Nessus	Miracle Linux Local Security Checks	2026/1/16	2026/2/9	medium
83449	Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2015-3036)	Nessus	Oracle Linux Local Security Checks	2015/5/14	2026/2/9	medium
83485	OracleVM 3.3 : kernel-uek (OVMSA-2015-0060)	Nessus	OracleVM Local Security Checks	2015/5/15	2021/1/4	medium
83761	Ubuntu 14.04 LTS : Linux kernel (Utopic HWE) vulnerabilities (USN-2615-1)	Nessus	Ubuntu Local Security Checks	2015/5/21	2024/8/27	medium
84486	RHEL 6 : kernel (RHSA-2015:1199)	Nessus	Red Hat Local Security Checks	2015/7/1	2019/10/24	high

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