USN-3689-2: Libgcrypt vulnerability

19 June 2018

libgcrypt11 vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 12.04 ESM


Libgcrypt could be made to expose sensitive information.

Software Description

  • libgcrypt11 - LGPL Crypto library


USN-3689-1 fixed a vulnerability in Libgcrypt. This update provides the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

Keegan Ryan discovered that Libgcrypt was susceptible to a side-channel attack. A local attacker could possibly use this attack to recover ECDSA private keys.

Update instructions

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

Ubuntu 12.04 ESM
libgcrypt11 - 1.5.0-3ubuntu0.8

To update your system, please follow these instructions:

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