Ubuntu 3478-2: Perl vulnerability

    Date13 Nov 2017
    CategoryUbuntu
    61
    Posted ByLinuxSecurity Advisories
    Perl could be made to crash if it received specially crafted input.
    ==========================================================================
    Ubuntu Security Notice USN-3478-2
    November 13, 2017
    
    perl vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 12.04 ESM
    
    Summary:
    
    Perl could be made to crash if it received specially crafted
    input.
    
    Software Description:
    - perl: Practical Extraction and Report Language
    
    Details:
    
    USN-3478-1 fixed two vulnerabilities in Perl. This update
    provides the corresponding update for Ubuntu 12.04 ESM.
    
    Original advisory details:
    
     Jakub Wilk discovered that Perl incorrectly handled certain regular
     expressions. An attacker could use this issue to cause Perl to crash,
     resulting in a denial of service, or possibly execute arbitrary code.
     (CVE-2017-12883)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 12.04 ESM:
      perl                            5.14.2-6ubuntu2.6
    
    In general, a standard system update will make all the necessary
    changes.
    
    References:
      https://www.ubuntu.com/usn/usn-3478-2
      https://www.ubuntu.com/usn/usn-3478-1
      CVE-2017-12883
    
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