Ubuntu 4151-2: Python vulnerabilities

    Date10 Oct 2019
    CategoryUbuntu
    451
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in Python.
    ==========================================================================
    Ubuntu Security Notice USN-4151-2
    October 10, 2019
    
    python2.7, python3.4 vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 14.04 ESM
    - Ubuntu 12.04 ESM
    
    Summary:
    
    Several security issues were fixed in Python.
    
    Software Description:
    - python2.7: An interactive high-level object-oriented language
    - python3.4: An interactive high-level object-oriented language
    
    Details:
    
    USN-4151-1 fixed several vulnerabilities in Python. This update provides
    the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.
    
    Original advisory details:
    
     It was discovered that Python incorrectly parsed certain email addresses. A
     remote attacker could possibly use this issue to trick Python applications
     into accepting email addresses that should be denied. (CVE-2019-16056)
    
     It was discovered that the Python documentation XML-RPC server incorrectly
     handled certain fields. A remote attacker could use this issue to execute a
     cross-site scripting (XSS) attack. (CVE-2019-16935)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 14.04 ESM:
      python2.7                       2.7.6-8ubuntu0.6+esm3
      python2.7-minimal               2.7.6-8ubuntu0.6+esm3
      python3.4                       3.4.3-1ubuntu1~14.04.7+esm4
      python3.4-minimal               3.4.3-1ubuntu1~14.04.7+esm4
    
    Ubuntu 12.04 ESM:
      python2.7                       2.7.3-0ubuntu3.15
      python2.7-minimal               2.7.3-0ubuntu3.15
    
    In general, a standard system update will make all the necessary changes.
    
    References:
      https://usn.ubuntu.com/4151-2
      https://usn.ubuntu.com/4151-1
      CVE-2019-16056, CVE-2019-16935
    
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