Ubuntu 3150-2: Linux kernel (OMAP4) vulnerability

    Date05 Dec 2016
    CategoryUbuntu
    48
    Posted ByLinuxSecurity Advisories
    The system could be made to crash or run programs as an administrator.
    ==========================================================================
    Ubuntu Security Notice USN-3150-2
    December 06, 2016
    
    linux-ti-omap4 vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 12.04 LTS
    
    Summary:
    
    The system could be made to crash or run programs as an administrator.
    
    Software Description:
    - linux-ti-omap4: Linux kernel for OMAP4
    
    Details:
    
    Philip Pettersson discovered a race condition in the af_packet
    implementation in the Linux kernel. A local unprivileged attacker could use
    this to cause a denial of service (system crash) or run arbitrary code with
    administrative privileges.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 12.04 LTS:
      linux-image-3.2.0-1496-omap4    3.2.0-1496.123
      linux-image-omap4               3.2.0.1496.91
    
    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.
    Unless you manually uninstalled the standard kernel metapackages
    (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
    linux-powerpc), a standard system upgrade will automatically perform
    this as well.
    
    References:
      http://www.ubuntu.com/usn/usn-3150-2
      http://www.ubuntu.com/usn/usn-3150-1
      CVE-2016-8655
    
    Package Information:
      https://launchpad.net/ubuntu/+source/linux-ti-omap4/3.2.0-1496.123
    
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