Ubuntu 4274-1: libxml2 vulnerabilities

    Date10 Feb 2020
    4187
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in libxml2.
    ==========================================================================
    Ubuntu Security Notice USN-4274-1
    February 10, 2020
    
    libxml2 vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 19.10
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    - Ubuntu 14.04 ESM
    - Ubuntu 12.04 ESM
    
    Summary:
    
    Several security issues were fixed in libxml2.
    
    Software Description:
    - libxml2: GNOME XML library
    
    Details:
    
    It was discovered that libxml2 incorrectly handled certain XML files.
    An attacker could possibly use this issue to cause a denial of service.
    (CVE-2019-19956, CVE-2020-7595)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 19.10:
      libxml2                         2.9.4+dfsg1-7ubuntu3.1
      libxml2-utils                   2.9.4+dfsg1-7ubuntu3.1
    
    Ubuntu 18.04 LTS:
      libxml2                         2.9.4+dfsg1-6.1ubuntu1.3
      libxml2-utils                   2.9.4+dfsg1-6.1ubuntu1.3
    
    Ubuntu 16.04 LTS:
      libxml2                         2.9.3+dfsg1-1ubuntu0.7
      libxml2-utils                   2.9.3+dfsg1-1ubuntu0.7
    
    Ubuntu 14.04 ESM:
      libxml2                         2.9.1+dfsg1-3ubuntu4.13+esm1
      libxml2-utils                   2.9.1+dfsg1-3ubuntu4.13+esm1
    
    Ubuntu 12.04 ESM:
      libxml2                         2.7.8.dfsg-5.1ubuntu4.22
      libxml2-utils                   2.7.8.dfsg-5.1ubuntu4.22
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4274-1
      CVE-2019-19956, CVE-2020-7595
    
    Package Information:
      https://launchpad.net/ubuntu/+source/libxml2/2.9.4+dfsg1-7ubuntu3.1
      https://launchpad.net/ubuntu/+source/libxml2/2.9.4+dfsg1-6.1ubuntu1.3
      https://launchpad.net/ubuntu/+source/libxml2/2.9.3+dfsg1-1ubuntu0.7
    
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