Ubuntu 1317-1: Ghostscript vulnerabilities

    Date04 Jan 2012
    CategoryUbuntu
    43
    Posted ByLinuxSecurity Advisories
    Ghostscript could be made to crash or run programs as your login if it opened a specially crafted file.
    ==========================================================================
    Ubuntu Security Notice USN-1317-1
    January 04, 2012
    
    ghostscript vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 10.10
    - Ubuntu 10.04 LTS
    - Ubuntu 8.04 LTS
    
    Summary:
    
    Ghostscript could be made to crash or run programs as your login if it
    opened a specially crafted file.
    
    Software Description:
    - ghostscript: The GPL Ghostscript PostScript/PDF interpreter
    
    Details:
    
    It was discovered that Ghostscript did not correctly handle memory
    allocation when parsing certain malformed JPEG-2000 images. If a user or
    automated system were tricked into opening a specially crafted image, an
    attacker could cause a denial of service and possibly execute arbitrary
    code with user privileges. (CVE-2008-3520)
    
    It was discovered that Ghostscript did not correctly handle certain
    formatting operations when parsing JPEG-2000 images. If a user or automated
    system were tricked into opening a specially crafted image, an attacker
    could cause a denial of service and possibly execute arbitrary code with
    user privileges. (CVE-2008-3522)
    
    It was discovered that Ghostscript incorrectly handled certain malformed
    TrueType fonts. If a user or automated system were tricked into opening a
    document containing a specially crafted font, an attacker could cause a
    denial of service and possibly execute arbitrary code with user privileges.
    This issue only affected Ubuntu 8.04 LTS. (CVE-2009-3743)
    
    It was discovered that Ghostscript incorrectly handled certain malformed
    Type 2 fonts. If a user or automated system were tricked into opening a
    document containing a specially crafted font, an attacker could cause a
    denial of service and possibly execute arbitrary code with user privileges.
    This issue only affected Ubuntu 8.04 LTS. (CVE-2010-4054)
    
    Jonathan Foote discovered that Ghostscript incorrectly handled certain
    malformed JPEG-2000 image files. If a user or automated system were tricked
    into opening a specially crafted JPEG-2000 image file, an attacker could
    cause Ghostscript to crash or possibly execute arbitrary code with user
    privileges. (CVE-2011-4516, CVE-2011-4517)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 10.10:
      libgs8                          8.71.dfsg.2-0ubuntu7.1
    
    Ubuntu 10.04 LTS:
      libgs8                          8.71.dfsg.1-0ubuntu5.4
    
    Ubuntu 8.04 LTS:
      libgs8                          8.61.dfsg.1-1ubuntu3.4
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-1317-1
      CVE-2008-3520, CVE-2008-3522, CVE-2009-3743, CVE-2010-4054,
      CVE-2011-4516, CVE-2011-4517
    
    Package Information:
      https://launchpad.net/ubuntu/+source/ghostscript/8.71.dfsg.2-0ubuntu7.1
      https://launchpad.net/ubuntu/+source/ghostscript/8.71.dfsg.1-0ubuntu5.4
      https://launchpad.net/ubuntu/+source/ghostscript/8.61.dfsg.1-1ubuntu3.4
    
    
    
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