Linux Security
    Linux Security
    Linux Security

    Ubuntu 4568-1: Brotli vulnerability

    Date 05 Oct 2020
    106
    Posted By LinuxSecurity Advisories
    Brotli could be made to crash if it received a specially crafted input.
    ==========================================================================
    Ubuntu Security Notice USN-4568-1
    October 05, 2020
    
    brotli vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 20.04 LTS
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    
    Summary:
    
    Brotli could be made to crash if it received a specially crafted
    input.
    
    Software Description:
    - brotli: lossless compression algorithm and format (command line utility)
    
    Details:
    
    It was discovered that Brotli incorrectly handled certain inputs.
    An attacker could possibly use this issue to cause a crash.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 20.04 LTS:
      brotli                          1.0.7-6ubuntu0.1
      libbrotli1                      1.0.7-6ubuntu0.1
      python3-brotli                  1.0.7-6ubuntu0.1
    
    Ubuntu 18.04 LTS:
      brotli                          1.0.3-1ubuntu1.3
      libbrotli1                      1.0.3-1ubuntu1.3
      python-brotli                   1.0.3-1ubuntu1.3
      python3-brotli                  1.0.3-1ubuntu1.3
    
    Ubuntu 16.04 LTS:
      brotli                          1.0.3-1ubuntu1~16.04.2
      libbrotli1                      1.0.3-1ubuntu1~16.04.2
      python-brotli                   1.0.3-1ubuntu1~16.04.2
      python3-brotli                  1.0.3-1ubuntu1~16.04.2
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4568-1
      CVE-2020-8927
    
    Package Information:
      https://launchpad.net/ubuntu/+source/brotli/1.0.7-6ubuntu0.1
      https://launchpad.net/ubuntu/+source/brotli/1.0.3-1ubuntu1.3
      https://launchpad.net/ubuntu/+source/brotli/1.0.3-1ubuntu1~16.04.2
    

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