Ubuntu 2957-1: Libtasn1 vulnerability

    Date02 May 2016
    Posted ByLinuxSecurity Advisories
    Libtasn1 could be made to hang if it processed specially crafted data.
    Ubuntu Security Notice USN-2957-1
    May 02, 2016
    libtasn1-3, libtasn1-6 vulnerability
    A security issue affects these releases of Ubuntu and its derivatives:
    - Ubuntu 15.10
    - Ubuntu 14.04 LTS
    - Ubuntu 12.04 LTS
    Libtasn1 could be made to hang if it processed specially crafted data.
    Software Description:
    - libtasn1-6: Library to manage ASN.1 structures
    - libtasn1-3: Library to manage ASN.1 structures
    Pascal Cuoq and Miod Vallat discovered that Libtasn1 incorrectly handled
    certain malformed DER certificates. A remote attacker could possibly use
    this issue to cause applications using Libtasn1 to hang, resulting in a
    denial of service.
    Update instructions:
    The problem can be corrected by updating your system to the following
    package versions:
    Ubuntu 15.10:
      libtasn1-6                      4.5-2ubuntu0.1
    Ubuntu 14.04 LTS:
      libtasn1-6                      3.4-3ubuntu0.4
    Ubuntu 12.04 LTS:
      libtasn1-3                      2.10-1ubuntu1.5
    In general, a standard system update will make all the necessary changes.
    Package Information:
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