Ubuntu 3309-2: Libtasn1 vulnerability

    Date18 Jul 2017
    CategoryUbuntu
    44
    Posted ByLinuxSecurity Advisories
    Libtasn1 could be made to crash or run programs as your login if it opened a specially crafted file.
    ==========================================================================
    Ubuntu Security Notice USN-3309-2
    July 18, 2017
    
    libtasn1-3 vulnerability
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 12.04 ESM
    
    Summary:
    
    Libtasn1 could be made to crash or run programs as your login if it
    opened a specially crafted file.
    
    Software Description:
    - libtasn1-3: Library to manage ASN.1 structures
    
    Details:
    
    Jakub Jirasek discovered that GnuTLS incorrectly handled certain
    assignments files. If a user were tricked into processing a specially
    crafted assignments file, a remote attacker could possibly execute
    arbirary
    code.
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 12.04 ESM:
      libtasn1-3                      2.10-1ubuntu1.6
    
    In general, a standard system update will make all the necessary
    changes.
    
    References:
      https://www.ubuntu.com/usn/usn-3309-2
      https://www.ubuntu.com/usn/usn-3309-1
      CVE-2017-6891
    
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