======================================================================= === Ubuntu Security Notice USN-3347-2 July 17, 2017
libgcrypt11 vulnerability ======================================================================= === A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 12.04 ESM Summary: Several security issues were fixed in Libgcrypt. Software Description: - libgcrypt11: LGPL Crypto library Details: USN-3347-1 fixed a vulnerability in Libgcrypt. 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 Libgcrypt was susceptible to an attack via side channels. A local attacker could use this attack to recover RSA private keys. (CVE-2017-7526) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 12.04 ESM: libgcrypt11 1.5.0-3ubuntu0.7 In general, a standard system update will make all the necessary changes. References: https://www.ubuntu.com/usn/usn-3347-2 https://www.ubuntu.com/usn/usn-3347-1 CVE-2017-7526
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