USN-2059-1: GnuPG vulnerability

18 December 2013

GnuPG could expose sensitive information when performing decryption.



  • gnupg - GNU privacy guard - a free PGP replacement


Daniel Genkin, Adi Shamir, and Eran Tromer discovered that GnuPG was
susceptible to an adaptive chosen ciphertext attack via acoustic
emanations. A local attacker could use this attack to possibly recover
private keys.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 13.10
Ubuntu 13.04
Ubuntu 12.10
Ubuntu 12.04
Ubuntu 10.04

In general, a standard system update will make all the necessary changes.