The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2012:0350 advisory.

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

    This update fixes the following security issues:

    * A buffer overflow flaw was found in the way the Linux kernel's XFS file     system implementation handled links with overly long path names. A local,     unprivileged user could use this flaw to cause a denial of service or     escalate their privileges by mounting a specially-crafted disk.
    (CVE-2011-4077, Moderate)

    * Flaws in ghash_update() and ghash_final() could allow a local,     unprivileged user to cause a denial of service. (CVE-2011-4081, Moderate)

    * A flaw was found in the Linux kernel's Journaling Block Device (JBD). A     local, unprivileged user could use this flaw to crash the system by     mounting a specially-crafted ext3 or ext4 disk. (CVE-2011-4132, Moderate)

    * It was found that the kvm_vm_ioctl_assign_device() function in the KVM     (Kernel-based Virtual Machine) subsystem of a Linux kernel did not check if     the user requesting device assignment was privileged or not. A local,     unprivileged user on the host could assign unused PCI devices, or even     devices that were in use and whose resources were not properly claimed by     the respective drivers, which could result in the host crashing.
    (CVE-2011-4347, Moderate)

    * Two flaws were found in the way the Linux kernel's __sys_sendmsg()     function, when invoked via the sendmmsg() system call, accessed user-space     memory. A local, unprivileged user could use these flaws to cause a denial     of service. (CVE-2011-4594, Moderate)

    * The RHSA-2011:1530 kernel update introduced an integer overflow flaw in     the Linux kernel. On PowerPC systems, a local, unprivileged user could use     this flaw to cause a denial of service. (CVE-2011-4611, Moderate)

    * A flaw was found in the way the KVM subsystem of a Linux kernel handled     PIT (Programmable Interval Timer) IRQs (interrupt requests) when there was     no virtual interrupt controller set up. A local, unprivileged user on the     host could force this situation to occur, resulting in the host crashing.
    (CVE-2011-4622, Moderate)

    * A flaw was found in the way the Linux kernel's XFS file system     implementation handled on-disk Access Control Lists (ACLs). A local,     unprivileged user could use this flaw to cause a denial of service or     escalate their privileges by mounting a specially-crafted disk.
    (CVE-2012-0038, Moderate)

    * A flaw was found in the way the Linux kernel's KVM hypervisor     implementation emulated the syscall instruction for 32-bit guests. An     unprivileged guest user could trigger this flaw to crash the guest.
    (CVE-2012-0045, Moderate)

    * A divide-by-zero flaw was found in the Linux kernel's igmp_heard_query()     function. An attacker able to send certain IGMP (Internet Group Management     Protocol) packets to a target system could use this flaw to cause a denial     of service. (CVE-2012-0207, Moderate)

    Red Hat would like to thank Nick Bowler for reporting CVE-2011-4081; Sasha     Levin for reporting CVE-2011-4347; Tetsuo Handa for reporting     CVE-2011-4594; Maynard Johnson for reporting CVE-2011-4611; Wang Xi for     reporting CVE-2012-0038; Stephan Brwolf for reporting CVE-2012-0045; and     Simon McVittie for reporting CVE-2012-0207. Upstream acknowledges Mathieu     Desnoyers as the original reporter of CVE-2011-4594.

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

    Users should upgrade to these updated packages, which contain backported     patches to correct these issues, and fix the bugs noted in the Technical     Notes. 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.

Detections

Analytics

RHEL 6 : kernel (RHSA-2012:0350)

high Nessus Plugin ID 58261

Version 1.31

Version 1.30

Version 1.31 Nov 5, 2024, 12:50 PM CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Plugin metadata Plugin Feed: 202411051250
Version 1.30 Apr 27, 2024, 10:42 PM CVSS metrics ("CVSSv2 score" set to 6.9) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C") CVSSv2 score source (set to "CVE-2011-4077") CVSSv2 severity (based on CVE-2011-4077, severity decreased from "High" to "Medium") CVSSv3 score source (set to "CVE-2012-0207") Detection (updated detection logic) Plugin metadata Reference Plugin Feed: 202404272242