Ubuntu 1904-1: libxml2 vulnerabilities

    Date15 Jul 2013
    CategoryUbuntu
    49
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in libxml2.
    ==========================================================================
    Ubuntu Security Notice USN-1904-1
    July 15, 2013
    
    libxml2 vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 13.04
    - Ubuntu 12.10
    - Ubuntu 12.04 LTS
    - Ubuntu 10.04 LTS
    
    Summary:
    
    Several security issues were fixed in libxml2.
    
    Software Description:
    - libxml2: GNOME XML library
    
    Details:
    
    It was discovered that libxml2 would load XML external entities by default.
    If a user or automated system were tricked into opening a specially crafted
    document, an attacker could possibly obtain access to arbitrary files or
    cause resource consumption. This issue only affected Ubuntu 10.04 LTS,
    Ubuntu 12.04 LTS, and Ubuntu 12.10. (CVE-2013-0339)
    
    It was discovered that libxml2 incorrectly handled documents that end
    abruptly. If a user or automated system were tricked into opening a
    specially crafted document, an attacker could possibly cause libxml2 to
    crash, resulting in a denial of service. (CVE-2013-2877)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 13.04:
      libxml2                         2.9.0+dfsg1-4ubuntu4.2
    
    Ubuntu 12.10:
      libxml2                         2.8.0+dfsg1-5ubuntu2.3
    
    Ubuntu 12.04 LTS:
      libxml2                         2.7.8.dfsg-5.1ubuntu4.5
    
    Ubuntu 10.04 LTS:
      libxml2                         2.7.6.dfsg-1ubuntu1.9
    
    After a standard system update you need to reboot your computer to make all
    the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-1904-1
      CVE-2013-0339, CVE-2013-2877
    
    Package Information:
      https://launchpad.net/ubuntu/+source/libxml2/2.9.0+dfsg1-4ubuntu4.2
      https://launchpad.net/ubuntu/+source/libxml2/2.8.0+dfsg1-5ubuntu2.3
      https://launchpad.net/ubuntu/+source/libxml2/2.7.8.dfsg-5.1ubuntu4.5
      https://launchpad.net/ubuntu/+source/libxml2/2.7.6.dfsg-1ubuntu1.9
    
    
    
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