Ubuntu 4308-1: Twisted vulnerabilities

    Date19 Mar 2020
    99
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in Twisted.
    ==========================================================================
    Ubuntu Security Notice USN-4308-1
    March 19, 2020
    
    twisted vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 19.10
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    
    Summary:
    
    Several security issues were fixed in Twisted.
    
    Software Description:
    - twisted: Event-based framework for internet applications
    
    Details:
    
    it was discovered that Twisted incorrectly validated or sanitized certain
    URIs or HTTP methods. A remote attacker could use this issue to inject
    invalid characters and possibly perform header injection attacks.
    (CVE-2019-12387)
    
    It was discovered that Twisted incorrectly verified XMPP TLS certificates.
    A remote attacker could possibly use this issue to perform a
    man-in-the-middle attack and obtain sensitive information. (CVE-2019-12855)
    
    It was discovered that Twisted incorrectly handled HTTP/2 connections. A
    remote attacker could possibly use this issue to cause Twisted to hang or
    consume resources, leading to a denial of service. This issue only affected
    Ubuntu 18.04 LTS and Ubuntu 19.10. (CVE-2019-9512, CVE-2019-9514,
    CVE-2019-9515)
    
    Jake Miller and ZeddYu Lu discovered that Twisted incorrectly handled
    certain content-length headers. A remote attacker could possibly use this
    issue to perform HTTP request splitting attacks. (CVE-2020-10108,
    CVE-2020-10109)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 19.10:
      python-twisted                  18.9.0-3ubuntu1.1
      python-twisted-bin              18.9.0-3ubuntu1.1
      python-twisted-web              18.9.0-3ubuntu1.1
      python3-twisted                 18.9.0-3ubuntu1.1
      python3-twisted-bin             18.9.0-3ubuntu1.1
    
    Ubuntu 18.04 LTS:
      python-twisted                  17.9.0-2ubuntu0.1
      python-twisted-bin              17.9.0-2ubuntu0.1
      python-twisted-web              17.9.0-2ubuntu0.1
      python3-twisted                 17.9.0-2ubuntu0.1
      python3-twisted-bin             17.9.0-2ubuntu0.1
    
    Ubuntu 16.04 LTS:
      python-twisted                  16.0.0-1ubuntu0.4
      python-twisted-bin              16.0.0-1ubuntu0.4
      python-twisted-web              16.0.0-1ubuntu0.4
      python3-twisted                 16.0.0-1ubuntu0.4
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4308-1
      CVE-2019-12387, CVE-2019-12855, CVE-2019-9512, CVE-2019-9514,
      CVE-2019-9515, CVE-2020-10108, CVE-2020-10109
    
    Package Information:
      https://launchpad.net/ubuntu/+source/twisted/18.9.0-3ubuntu1.1
      https://launchpad.net/ubuntu/+source/twisted/17.9.0-2ubuntu0.1
      https://launchpad.net/ubuntu/+source/twisted/16.0.0-1ubuntu0.4
    
    

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