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    Ubuntu 4570-1: urllib3 vulnerability

    Date 05 Oct 2020
    Posted By LinuxSecurity Advisories
    urllib3 could be used to perform a CRLF injection if it received a specially crafted request.
    Ubuntu Security Notice USN-4570-1
    October 05, 2020
    python-urllib3 vulnerability
    A security issue affects these releases of Ubuntu and its derivatives:
    - Ubuntu 20.04 LTS
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    urllib3 could be used to perform a CRLF injection if it received a
    specially crafted request.
    Software Description:
    - python-urllib3: HTTP library with thread-safe connection pooling
    It was discovered that urllib3 incorrectly handled certain character
    sequences. A remote attacker could possibly use this issue to perform CRLF
    Update instructions:
    The problem can be corrected by updating your system to the following
    package versions:
    Ubuntu 20.04 LTS:
      python3-urllib3                 1.25.8-2ubuntu0.1
    Ubuntu 18.04 LTS:
      python-urllib3                  1.22-1ubuntu0.18.04.2
      python3-urllib3                 1.22-1ubuntu0.18.04.2
    Ubuntu 16.04 LTS:
      python-urllib3                  1.13.1-2ubuntu0.16.04.4
      python3-urllib3                 1.13.1-2ubuntu0.16.04.4
    In general, a standard system update will make all the necessary changes.
    Package Information:

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