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.

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RHEL 6 : kernel (RHSA-2015:1081)

medium Nessus Plugin ID 84075

Version 2.18