Ubuntu 2274-1: Linux kernel vulnerability

    Date05 Jul 2014
    CategoryUbuntu
    37
    Posted ByLinuxSecurity Advisories
    The system could be made to crash or run programs as an administrator.
    ==========================================================================
    Ubuntu Security Notice USN-2274-1
    July 05, 2014
    
    linux vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 14.04 LTS
    
    Summary:
    
    The system could be made to crash or run programs as an administrator.
    
    Software Description:
    - linux: Linux kernel
    
    Details:
    
    Andy Lutomirski discovered a flaw with the Linux kernel's ptrace syscall on
    x86_64 processors. An attacker could exploit this flaw to cause a denial of
    service (System Crash) or potential gain administrative privileges.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 14.04 LTS:
      linux-image-3.13.0-30-generic   3.13.0-30.55
      linux-image-3.13.0-30-generic-lpae  3.13.0-30.55
      linux-image-3.13.0-30-lowlatency  3.13.0-30.55
      linux-image-3.13.0-30-powerpc-e500  3.13.0-30.55
      linux-image-3.13.0-30-powerpc-e500mc  3.13.0-30.55
      linux-image-3.13.0-30-powerpc-smp  3.13.0-30.55
      linux-image-3.13.0-30-powerpc64-emb  3.13.0-30.55
      linux-image-3.13.0-30-powerpc64-smp  3.13.0-30.55
    
    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.
    
    References:
      http://www.ubuntu.com/usn/usn-2274-1
      CVE-2014-4699
    
    Package Information:
      https://launchpad.net/ubuntu/+source/linux/3.13.0-30.55
    
    
    
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