Ubuntu 4308-2: Twisted vulnerabilities

    Date 30 Mar 2020
    579
    Posted By LinuxSecurity Advisories
    Several security issues were fixed in Twisted.
    ==========================================================================
    Ubuntu Security Notice USN-4308-2
    March 30, 2020
    
    twisted vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 14.04 ESM
    
    Summary:
    
    Several security issues were fixed in Twisted.
    
    Software Description:
    - twisted: Event-based framework for internet applications
    
    Details:
    
    USN-4308-1 fixed several vulnerabilities in Twisted. This update provides
    the corresponding update for Ubuntu 14.04 ESM.
    
    Original advisory 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)
    
     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 14.04 ESM:
      python-twisted                  13.2.0-1ubuntu1.2+esm1
      python-twisted-bin              13.2.0-1ubuntu1.2+esm1
      python-twisted-web              13.2.0-1ubuntu1.2+esm1
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4308-2
      https://usn.ubuntu.com/4308-1
      CVE-2019-12387, CVE-2019-12855, CVE-2020-10108, CVE-2020-10109
    

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