Ubuntu 3733-2: GnuPG vulnerability

    Date 15 Aug 2018
    Posted By Anthony Pell
    GnuPG could be made to expose sensitive information.
    Ubuntu Security Notice USN-3733-2
    August 15, 2018
    gnupg vulnerability
    A security issue affects these releases of Ubuntu and its derivatives:
    - Ubuntu 12.04 ESM
    GnuPG could be made to expose sensitive information.
    Software Description:
    - gnupg: GNU privacy guard - a free PGP replacement
    USN-3733-1 fixed a vulnerability in GnuPG. This update provides
    the corresponding update for Ubuntu 12.04 ESM.
    Original advisory details:
     Daniel J. Bernstein, Joachim Breitner, Daniel Genkin, Leon Groot
     Bruinderink, Nadia Heninger, Tanja Lange, Christine van Vredendaal,
     and Yuval Yarom discovered that GnuPG is vulnerable to a cache side-
     channel attack. A local attacker could use this attack to recover RSA
     private keys.
    Update instructions:
    The problem can be corrected by updating your system to the following
    package versions:
    Ubuntu 12.04 ESM:
      gnupg                           1.4.11-3ubuntu2.12
      gnupg-curl                      1.4.11-3ubuntu2.12
      gpgv                            1.4.11-3ubuntu2.12
    In general, a standard system update will make all the necessary

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