Ubuntu 3834-2: Perl vulnerabilities

    Date03 Dec 2018
    CategoryUbuntu
    2327
    Posted ByAnthony Pell
    Several security issues were fixed in Perl.
    ==========================================================================
    Ubuntu Security Notice USN-3834-2
    December 03, 2018
    
    perl vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 12.04 ESM
    
    Summary:
    
    Several security issues were fixed in Perl.
    
    Software Description:
    - perl: Practical Extraction and Report Language
    
    Details:
    
    USN-3834-1 fixed a vulnerability in perl. This update provides
    the corresponding update for Ubuntu 12.04 ESM.
    
    Original advisory details:
    
     Jayakrishna Menon discovered that Perl incorrectly handled
     Perl_my_setenv. An attacker could use this issue to cause Perl to
     crash, resulting in a denial of service, or possibly execute arbitrary
     code. (CVE-2018-18311)
    
     Eiichi Tsukata 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. (CVE-2018-18313)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 12.04 ESM:
      perl                            5.14.2-6ubuntu2.9
    
    In general, a standard system update will make all the necessary
    changes.
    
    References:
      https://usn.ubuntu.com/usn/usn-3834-2
      https://usn.ubuntu.com/usn/usn-3834-1
      CVE-2018-18311, CVE-2018-18313
    
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