Ubuntu 2600-2: Linux kernel regression

    Date08 May 2015
    Posted ByLinuxSecurity Advisories
    USN-2600-1 Introduced a regression in the Linux kernel.
    Ubuntu Security Notice USN-2600-2
    May 09, 2015
    linux regression
    A security issue affects these releases of Ubuntu and its derivatives:
    - Ubuntu 14.10
    USN-2600-1 Introduced a regression in the Linux kernel.
    Software Description:
    - linux: Linux kernel
    USN-2600-1 fixed vulnerabilities in the Linux kernel, however an unrelated
    regression in the auditing of some path names was introduced. Due to the
    regression the system could crash under certain conditions.
    This update fixes the problem.
    We apologize for the inconvenience.
    Original advisory details:
     A race condition between chown() and execve() was discovered in the Linux
     kernel. A local attacker could exploit this race by using chown on a
     setuid-user-binary to gain administrative privileges.
    Update instructions:
    The problem can be corrected by updating your system to the following
    package versions:
    Ubuntu 14.10:
      linux-image-3.16.0-37-generic   3.16.0-37.51
      linux-image-3.16.0-37-generic-lpae  3.16.0-37.51
      linux-image-3.16.0-37-lowlatency  3.16.0-37.51
      linux-image-3.16.0-37-powerpc-e500mc  3.16.0-37.51
      linux-image-3.16.0-37-powerpc-smp  3.16.0-37.51
      linux-image-3.16.0-37-powerpc64-emb  3.16.0-37.51
      linux-image-3.16.0-37-powerpc64-smp  3.16.0-37.51
    After a standard system update you need to reboot your computer to make
    all the necessary changes.
    Package Information:

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