Ubuntu 3085-1: GDK-PixBuf vulnerabilities

    Date21 Sep 2016
    CategoryUbuntu
    56
    Posted ByLinuxSecurity Advisories
    GDK-PixBuf could be made to crash or run programs as your login if it opened a specially crafted file.
    ==========================================================================
    Ubuntu Security Notice USN-3085-1
    September 21, 2016
    
    gdk-pixbuf vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 16.04 LTS
    - Ubuntu 14.04 LTS
    - Ubuntu 12.04 LTS
    
    Summary:
    
    GDK-PixBuf could be made to crash or run programs as your login if it opened a
    specially crafted file.
    
    Software Description:
    - gdk-pixbuf: GDK-Pixbuf library
    
    Details:
    
    It was discovered that the GDK-PixBuf library did not properly handle specially
    crafted bmp images, leading to a heap-based buffer overflow. If a user or
    automated system were tricked into opening a specially crafted bmp file, a
    remote attacker could use this flaw to cause GDK-PixBuf to crash, resulting
    in a denial of service, or possibly execute arbitrary code. This issue only
    affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-7552)
    
    It was discovered that the GDK-PixBuf library contained an integer overflow
    when handling certain images. If a user or automated system were tricked into
    opening a crafted image file, a remote attacker could use this flaw to cause
    GDK-PixBuf to crash, resulting in a denial of service, or possibly execute
    arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS.
    (CVE-2015-8875)
    
    Franco Costantini discovered that the GDK-PixBuf library contained an 
    out-of-bounds write error when parsing an ico file. If a user or automated
    system were tricked into opening a crafted ico file, a remote attacker could
    use this flaw to cause GDK-PixBuf to crash, resulting in a denial of service.
    This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-6352)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 16.04 LTS:
      libgdk-pixbuf2.0-0              2.32.2-1ubuntu1.2
    
    Ubuntu 14.04 LTS:
      libgdk-pixbuf2.0-0              2.30.7-0ubuntu1.6
    
    Ubuntu 12.04 LTS:
      libgdk-pixbuf2.0-0              2.26.1-1ubuntu1.5
    
    After a standard system update you need to restart your session to make
    all the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-3085-1
      CVE-2015-7552, CVE-2015-8875, CVE-2016-6352
    
    Package Information:
      https://launchpad.net/ubuntu/+source/gdk-pixbuf/2.32.2-1ubuntu1.2
      https://launchpad.net/ubuntu/+source/gdk-pixbuf/2.30.7-0ubuntu1.6
      https://launchpad.net/ubuntu/+source/gdk-pixbuf/2.26.1-1ubuntu1.5
    
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