Ubuntu Security Notice 3347-2 - USN-3347-1 fixed a vulnerability in Libgcrypt. This update provides the corresponding update for Ubuntu 12.04 ESM. A Daniel J. Bernstein, Joachim Breitner, Daniel Genkin, Leon Groot A Bruinderink, Nadia Heninger, Tanja Lange, Christine van Vredendaal, and A Yuval Yarom discovered that Libgcrypt was susceptible to an attack via A side channels. A local attacker could use this attack to recover RSA A private keys. Various other issues were also addressed. Continue reading...
