Ubuntu 1934-1: Linux kernel (OMAP4) vulnerabilities

    Date20 Aug 2013
    CategoryUbuntu
    55
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in the kernel.
    ==========================================================================
    Ubuntu Security Notice USN-1934-1
    August 20, 2013
    
    linux-ti-omap4 vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 13.04
    
    Summary:
    
    Several security issues were fixed in the kernel.
    
    Software Description:
    - linux-ti-omap4: Linux kernel for OMAP4
    
    Details:
    
    Chanam Park reported a Null pointer flaw in the Linux kernel's Ceph client.
    A remote attacker could exploit this flaw to cause a denial of service
    (system crash). (CVE-2013-1059)
    
    An information leak was discovered in the Linux kernel's fanotify
    interface. A local user could exploit this flaw to obtain sensitive
    information from kernel memory. (CVE-2013-2148)
    
    Kees Cook discovered a format string vulnerability in the Linux kernel's
    disk block layer. A local user with administrator privileges could exploit
    this flaw to gain kernel privileges. (CVE-2013-2851)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 13.04:
      linux-image-3.5.0-231-omap4     3.5.0-231.47
    
    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-1934-1
      CVE-2013-1059, CVE-2013-2148, CVE-2013-2851
    
    Package Information:
      https://launchpad.net/ubuntu/+source/linux-ti-omap4/3.5.0-231.47
    
    
    
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