Ubuntu 3454-2: libffi vulnerability

    Date24 Oct 2017
    CategoryUbuntu
    47
    Posted ByLinuxSecurity Advisories
    A security issue was fixed in libffi.
    ==========================================================================
    Ubuntu Security Notice USN-3454-2
    October 24, 2017
    
    libffi vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 12.04 ESM
    
    Summary:
    
    A security issue was fixed in libffi.
    
    Software Description:
    - libffi: Foreign Function Interface library (development files, 32bit)
    
    Details:
    
    USN-3454-1 fixed a vulnerability in libffi. This update
    provides the corresponding update for Ubuntu 12.04 ESM.
    
    Original advisory details:
    
     It was discovered that libffi incorrectly enforced an executable  
     stack. An attacker could possibly use this issue, in combination with
     another vulnerability, to facilitate executing arbitrary code.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 12.04 ESM:
      libffi6                         3.0.11~rc1-5ubuntu0.1
    
    In general, a standard system update will make all the necessary
    changes.
    
    References:
      https://www.ubuntu.com/usn/usn-3454-2
      https://www.ubuntu.com/usn/usn-3454-1
      CVE-2017-1000376
    
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