Ubuntu 1535-1: Linux kernel vulnerabilities

    Date10 Aug 2012
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in the kernel.
    Ubuntu Security Notice USN-1535-1
    August 10, 2012
    linux vulnerabilities
    A security issue affects these releases of Ubuntu and its derivatives:
    - Ubuntu 10.04 LTS
    Several security issues were fixed in the kernel.
    Software Description:
    - linux: Linux kernel
    An error was discovered in the Linux kernel's network TUN/TAP device
    implementation. A local user with access to the TUN/TAP interface (which is
    not available to unprivileged users until granted by a root user) could
    exploit this flaw to crash the system or potential gain administrative
    privileges. (CVE-2012-2136)
    An error was discovered in the Linux kernel's memory subsystem (hugetlb).
    An unprivileged local user could exploit this flaw to cause a denial of
    service (crash the system). (CVE-2012-2390)
    Update instructions:
    The problem can be corrected by updating your system to the following
    package versions:
    Ubuntu 10.04 LTS:
      linux-image-2.6.32-42-386       2.6.32-42.95
      linux-image-2.6.32-42-generic   2.6.32-42.95
      linux-image-2.6.32-42-generic-pae  2.6.32-42.95
      linux-image-2.6.32-42-ia64      2.6.32-42.95
      linux-image-2.6.32-42-lpia      2.6.32-42.95
      linux-image-2.6.32-42-powerpc   2.6.32-42.95
      linux-image-2.6.32-42-powerpc-smp  2.6.32-42.95
      linux-image-2.6.32-42-powerpc64-smp  2.6.32-42.95
      linux-image-2.6.32-42-preempt   2.6.32-42.95
      linux-image-2.6.32-42-server    2.6.32-42.95
      linux-image-2.6.32-42-sparc64   2.6.32-42.95
      linux-image-2.6.32-42-sparc64-smp  2.6.32-42.95
      linux-image-2.6.32-42-versatile  2.6.32-42.95
      linux-image-2.6.32-42-virtual   2.6.32-42.95
    After a standard system update you need to reboot your computer to make
    all the necessary changes.
    ATTENTION: Due to an unavoidable ABI change the kernel updates have
    been given a new version number, which requires you to recompile and
    reinstall all third party kernel modules you might have installed. If
    you use linux-restricted-modules, you have to update that package as
    well to get modules which work with the new kernel version. Unless you
    manually uninstalled the standard kernel metapackages (e.g. linux-generic,
    linux-server, linux-powerpc), a standard system upgrade will automatically
    perform this as well.
      CVE-2012-2136, CVE-2012-2390
    Package Information:
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