Ubuntu 3900-1: GD vulnerabilities

    Date28 Feb 2019
    CategoryUbuntu
    4925
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in GD.
    ==========================================================================
    Ubuntu Security Notice USN-3900-1
    February 28, 2019
    
    libgd2 vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 18.10
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    - Ubuntu 14.04 LTS
    
    Summary:
    
    Several security issues were fixed in GD.
    
    Software Description:
    - libgd2: GD Graphics Library
    
    Details:
    
    It was discovered that GD incorrectly handled memory when processing
    certain images. A remote attacker could use this issue with a specially
    crafted image file to cause GD to crash, resulting in a denial of service,
    or possibly execute arbitrary code.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 18.10:
      libgd-tools                     2.2.5-4ubuntu1.1
      libgd3                          2.2.5-4ubuntu1.1
    
    Ubuntu 18.04 LTS:
      libgd-tools                     2.2.5-4ubuntu0.3
      libgd3                          2.2.5-4ubuntu0.3
    
    Ubuntu 16.04 LTS:
      libgd-tools                     2.1.1-4ubuntu0.16.04.11
      libgd3                          2.1.1-4ubuntu0.16.04.11
    
    Ubuntu 14.04 LTS:
      libgd-tools                     2.1.0-3ubuntu0.11
      libgd3                          2.1.0-3ubuntu0.11
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/usn/usn-3900-1
      CVE-2019-6977, CVE-2019-6978
    
    Package Information:
      https://launchpad.net/ubuntu/+source/libgd2/2.2.5-4ubuntu1.1
      https://launchpad.net/ubuntu/+source/libgd2/2.2.5-4ubuntu0.3
      https://launchpad.net/ubuntu/+source/libgd2/2.1.1-4ubuntu0.16.04.11
      https://launchpad.net/ubuntu/+source/libgd2/2.1.0-3ubuntu0.11
    
    
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