Ubuntu 3212-2: LibTIFF regression

    Date30 May 2017
    CategoryUbuntu
    71
    Posted ByLinuxSecurity Advisories
    USN-3212-1 caused a regression in LibTIFF.
    ==========================================================================
    Ubuntu Security Notice USN-3212-2
    May 30, 2017
    
    tiff regression
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 16.10
    - Ubuntu 16.04 LTS
    - Ubuntu 14.04 LTS
    
    Summary:
    
    USN-3212-1 caused a regression in LibTIFF.
    
    Software Description:
    - tiff: Tag Image File Format (TIFF) library
    
    Details:
    
    USN-3212-1 fixed vulnerabilities in LibTIFF. Unfortunately, some of the
    security patches were misapplied, which caused a regression when processing
    certain images. This update fixes the problem.
    
    We apologize for the inconvenience.
    
    Original advisory details:
    
     It was discovered that LibTIFF incorrectly handled certain malformed
     images. If a user or automated system were tricked into opening a specially
     crafted image, a remote attacker could crash the application, leading to a
     denial of service, or possibly execute arbitrary code with user privileges.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 16.10:
      libtiff-tools                   4.0.6-2ubuntu0.2
      libtiff5                        4.0.6-2ubuntu0.2
    
    Ubuntu 16.04 LTS:
      libtiff-tools                   4.0.6-1ubuntu0.2
      libtiff5                        4.0.6-1ubuntu0.2
    
    Ubuntu 14.04 LTS:
      libtiff-tools                   4.0.3-7ubuntu0.7
      libtiff5                        4.0.3-7ubuntu0.7
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://www.ubuntu.com/usn/usn-3212-2
      https://www.ubuntu.com/usn/usn-3212-1
      https://launchpad.net/bugs/1670036
    
    Package Information:
      https://launchpad.net/ubuntu/+source/tiff/4.0.6-2ubuntu0.2
      https://launchpad.net/ubuntu/+source/tiff/4.0.6-1ubuntu0.2
      https://launchpad.net/ubuntu/+source/tiff/4.0.3-7ubuntu0.7
    
    
    
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