Ubuntu 3786-1: libxkbcommon vulnerabilities

    Date08 Oct 2018
    CategoryUbuntu
    2610
    Posted ByAnthony Pell
    Several security issues were fixed in libxkbcommon.
    ==========================================================================
    Ubuntu Security Notice USN-3786-1
    October 08, 2018
    
    libxkbcommon vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 16.04 LTS
    - Ubuntu 14.04 LTS
    
    Summary:
    
    Several security issues were fixed in libxkbcommon.
    
    Software Description:
    - libxkbcommon: library interface to the XKB compiler - development
    files
    
    Details:
    
    It was discovered that libxkbcommon incorrectly handled certain files.
    An attacker could possibly use this issue to cause a denial of service.
    (CVE-2018-15853, CVE-2018-15854, CVE-2018-15855, CVE-2018-15856,
    CVE-2018-15857, CVE-2018-15858, CVE-2018-15859, CVE-2018-15861,
    CVE-2018-15862, CVE-2018-15863, CVE-2018-15864)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 16.04 LTS:
      libxkbcommon-x11-0              0.5.0-1ubuntu2.1
      libxkbcommon0                   0.5.0-1ubuntu2.1
    
    Ubuntu 14.04 LTS:
      libxkbcommon-x11-0              0.4.1-0ubuntu1.1
      libxkbcommon0                   0.4.1-0ubuntu1.1
    
    In general, a standard system update will make all the necessary
    changes.
    
    References:
      https://usn.ubuntu.com/usn/usn-3786-1
      CVE-2018-15853, CVE-2018-15854, CVE-2018-15855, CVE-2018-15856,
      CVE-2018-15857, CVE-2018-15858, CVE-2018-15859, CVE-2018-15861,
      CVE-2018-15862, CVE-2018-15863, CVE-2018-15864
    
    Package Information:
      https://launchpad.net/ubuntu/+source/libxkbcommon/0.5.0-1ubuntu2.1
      https://launchpad.net/ubuntu/+source/libxkbcommon/0.4.1-0ubuntu1.1
    
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