Ubuntu 4277-1: libexif vulnerabilities

    Date 11 Feb 2020
    416
    Posted By LinuxSecurity Advisories
    Several security issues were fixed in libexif.
    ==========================================================================
    Ubuntu Security Notice USN-4277-1
    February 11, 2020
    
    libexif 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 libexif.
    
    Software Description:
    - libexif: library to parse EXIF files
    
    Details:
    
    Liu Bingchang discovered that libexif incorrectly handled certain files.
    An attacker could possibly use this issue to access sensitive information or
    cause a denial of service. This issue only affected Ubuntu 12.04 ESM, Ubuntu 14.04 ESM and
    Ubuntu 16.04 LTS. (CVE-2016-6328)
    
    Lili Xu and Bingchang Liu discovered that libexif incorrectly handled certain files.
    An attacker could possibly use this issue to access sensitive information or cause
    a denial of service. This issue only affected Ubuntu 12.04 ESM, Ubuntu 14.04 ESM and
    Ubuntu 16.04 LTS. (CVE-2017-7544)
    
    It was discovered that libexif incorrectly handled certain files. An attacker could
    possibly use this issue to execute arbitrary code. (CVE-2019-9278)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 19.10:
      libexif12                       0.6.21-5.1ubuntu0.1
    
    Ubuntu 18.04 LTS:
      libexif12                       0.6.21-4ubuntu0.1
    
    Ubuntu 16.04 LTS:
      libexif12                       0.6.21-2ubuntu0.1
    
    Ubuntu 14.04 ESM:
      libexif12                       0.6.21-1ubuntu1+esm1
    
    Ubuntu 12.04 ESM:
      libexif12                       0.6.20-2ubuntu0.2
    
    After a standard system update you need to restart your session to effect the necessary
    changes.
    
    References:
      https://usn.ubuntu.com/4277-1
      CVE-2016-6328, CVE-2017-7544, CVE-2019-9278
    
    Package Information:
      https://launchpad.net/ubuntu/+source/libexif/0.6.21-5.1ubuntu0.1
      https://launchpad.net/ubuntu/+source/libexif/0.6.21-4ubuntu0.1
      https://launchpad.net/ubuntu/+source/libexif/0.6.21-2ubuntu0.1
    

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