GnuPG could expose sensitive information when performing decryption.
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.
18 December 2013
A security issue affects these releases of Ubuntu and its derivatives:
GnuPG could expose sensitive information when performing decryption.
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.
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
Vulmon