Ubuntu 3030-1: GD library vulnerabilities

    Date11 Jul 2016
    CategoryUbuntu
    56
    Posted ByLinuxSecurity Advisories
    The GD library could be made to crash or run programs if it processed a specially crafted image file.
    ==========================================================================
    Ubuntu Security Notice USN-3030-1
    July 11, 2016
    
    libgd2 vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 16.04 LTS
    - Ubuntu 15.10
    - Ubuntu 14.04 LTS
    - Ubuntu 12.04 LTS
    
    Summary:
    
    The GD library could be made to crash or run programs if it processed a
    specially crafted image file.
    
    Software Description:
    - libgd2: GD Graphics Library
    
    Details:
    
    It was discovered that the GD library incorrectly handled memory when using
    gdImageScaleTwoPass(). A remote attacker could possibly use this issue to
    cause a denial of service. This issue only affected Ubuntu 14.04 LTS.
    (CVE-2013-7456)
    
    It was discovered that the GD library incorrectly handled certain malformed
    XBM images. If a user or automated system were tricked into processing a
    specially crafted XBM image, an attacker could cause a denial of service.
    This issue only affected Ubuntu 14.04 LTS, Ubuntu 15.10 and Ubuntu 16.04
    LTS. (CVE-2016-5116)
    
    It was discovered that the GD library incorrectly handled memory when using
    _gd2GetHeader(). A remote attacker could possibly use this issue to cause a
    denial of service or possibly execute arbitrary code. (CVE-2016-5766)
    
    It was discovered that the GD library incorrectly handled certain color
    indexes. A remote attacker could possibly use this issue to cause a denial
    of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 15.10 and
    Ubuntu 16.04 LTS. (CVE-2016-6128)
    
    It was discovered that the GD library incorrectly handled memory when
    encoding a GIF image. A remote attacker could possibly use this issue to
    cause a denial of service. (CVE-2016-6161)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 16.04 LTS:
      libgd3                          2.1.1-4ubuntu0.16.04.2
    
    Ubuntu 15.10:
      libgd3                          2.1.1-4ubuntu0.15.10.2
    
    Ubuntu 14.04 LTS:
      libgd3                          2.1.0-3ubuntu0.2
    
    Ubuntu 12.04 LTS:
      libgd2-noxpm                    2.0.36~rc1~dfsg-6ubuntu2.2
      libgd2-xpm                      2.0.36~rc1~dfsg-6ubuntu2.2
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-3030-1
      CVE-2013-7456, CVE-2016-5116, CVE-2016-5766, CVE-2016-6128,
      CVE-2016-6161
    
    Package Information:
      https://launchpad.net/ubuntu/+source/libgd2/2.1.1-4ubuntu0.16.04.2
      https://launchpad.net/ubuntu/+source/libgd2/2.1.1-4ubuntu0.15.10.2
      https://launchpad.net/ubuntu/+source/libgd2/2.1.0-3ubuntu0.2
      https://launchpad.net/ubuntu/+source/libgd2/2.0.36~rc1~dfsg-6ubuntu2.2
    
    
    
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