Ubuntu 1969-1: Linux kernel (OMAP4) vulnerabilities

    Date27 Sep 2013
    CategoryUbuntu
    80
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in the kernel.
    ==========================================================================
    Ubuntu Security Notice USN-1969-1
    September 27, 2013
    
    linux-ti-omap4 vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 12.04 LTS
    
    Summary:
    
    Several security issues were fixed in the kernel.
    
    Software Description:
    - linux-ti-omap4: Linux kernel for OMAP4
    
    Details:
    
    Vince Weaver discovered a flaw in the perf subsystem of the Linux kernel on
    ARM platforms. A local user could exploit this flaw to gain privileges or
    cause a denial of service (system crash). (CVE-2013-4254)
    
    A failure to validate block numbers was discovered in the Linux kernel's
    implementation of the XFS filesystem. A local user can cause a denial of
    service (system crash) if they can mount, or cause to be mounted a
    corrupted or special crafted XFS filesystem. (CVE-2013-1819)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 12.04 LTS:
      linux-image-3.2.0-1438-omap4    3.2.0-1438.57
    
    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-1969-1
      CVE-2013-1819, CVE-2013-4254
    
    Package Information:
      https://launchpad.net/ubuntu/+source/linux-ti-omap4/3.2.0-1438.57
    
    
    
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