Ubuntu 2834-1: libxml2 vulnerabilities

    Date14 Dec 2015
    CategoryUbuntu
    38
    Posted ByLinuxSecurity Advisories
    libxml2 could be made to crash if it opened a specially crafted file.
    ==========================================================================
    Ubuntu Security Notice USN-2834-1
    December 14, 2015
    
    libxml2 vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 15.10
    - Ubuntu 15.04
    - Ubuntu 14.04 LTS
    - Ubuntu 12.04 LTS
    
    Summary:
    
    libxml2 could be made to crash if it opened a specially crafted file.
    
    Software Description:
    - libxml2: GNOME XML library
    
    Details:
    
    Kostya Serebryany discovered that libxml2 incorrectly handled certain
    malformed documents. 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-2015-5312,
    CVE-2015-7497, CVE-2015-7498, CVE-2015-7499,CVE-2015-7500)
    
    Hugh Davenport discovered that libxml2 incorrectly handled certain
    malformed documents. 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-2015-8241,
    CVE-2015-8242)
    
    Hanno Boeck discovered that libxml2 incorrectly handled certain
    malformed documents. 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. This issue only applied
    to Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 15.04. (CVE-2015-8317)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 15.10:
      libxml2                         2.9.2+zdfsg1-4ubuntu0.2
    
    Ubuntu 15.04:
      libxml2                         2.9.2+dfsg1-3ubuntu0.2
    
    Ubuntu 14.04 LTS:
      libxml2                         2.9.1+dfsg1-3ubuntu4.6
    
    Ubuntu 12.04 LTS:
      libxml2                         2.7.8.dfsg-5.1ubuntu4.13
    
    After a standard system update you need to reboot your computer to make
    all the necessary changes.
    
    References:
      http://www.ubuntu.com/usn/usn-2834-1
      CVE-2015-5312, CVE-2015-7497, CVE-2015-7498, CVE-2015-7499,
      CVE-2015-7500, CVE-2015-8241, CVE-2015-8242, CVE-2015-8317
    
    Package Information:
      https://launchpad.net/ubuntu/+source/libxml2/2.9.2+zdfsg1-4ubuntu0.2
      https://launchpad.net/ubuntu/+source/libxml2/2.9.2+dfsg1-3ubuntu0.2
      https://launchpad.net/ubuntu/+source/libxml2/2.9.1+dfsg1-3ubuntu4.6
      https://launchpad.net/ubuntu/+source/libxml2/2.7.8.dfsg-5.1ubuntu4.13
    
    
    
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