============================================================================ Ubuntu Security Notice USN-2555-1 April 01, 2015 libgcrypt11, libgcrypt20 vulnerabilities ============================================================================ A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 14.10 - Ubuntu 14.04 LTS - Ubuntu 12.04 LTS - Ubuntu 10.04 LTS Summary: Several security issues were fixed in Libgcrypt. Software Description: - libgcrypt11: LGPL Crypto library - libgcrypt20: LGPL Crypto library Details: Daniel Genkin, Lev Pachmanov, Itamar Pipman, and Eran Tromer discovered that Libgcrypt was susceptible to an attack via physical side channels. A local attacker could use this attack to possibly recover private keys. (CVE-2014-3591) Daniel Genkin, Adi Shamir, and Eran Tromer discovered that Libgcrypt was susceptible to an attack via physical side channels. A local attacker could use this attack to possibly recover private keys. (CVE-2015-0837) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 14.10: libgcrypt11 1.5.4-2ubuntu1.1 libgcrypt20 1.6.1-2ubuntu1.14.10.1 Ubuntu 14.04 LTS: libgcrypt11 1.5.3-2ubuntu4.2 Ubuntu 12.04 LTS: libgcrypt11 1.5.0-3ubuntu0.4 Ubuntu 10.04 LTS: libgcrypt11 1.4.4-5ubuntu2.4 In general, a standard system update will make all the necessary changes. References: http://www.ubuntu.com/usn/usn-2555-1 CVE-2014-3591, CVE-2015-0837 Package Information: https://launchpad.net/ubuntu/+source/libgcrypt11/1.5.4-2ubuntu1.1 https://launchpad.net/ubuntu/+source/libgcrypt20/1.6.1-2ubuntu1.14.10.1 https://launchpad.net/ubuntu/+source/libgcrypt11/1.5.3-2ubuntu4.2 https://launchpad.net/ubuntu/+source/libgcrypt11/1.5.0-3ubuntu0.4 https://launchpad.net/ubuntu/+source/libgcrypt11/1.4.4-5ubuntu2.4