USN-4236-2: Libgcrypt vulnerability
14 January 2020
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS
Libgcrypt could be made to expose sensitive information.
- libgcrypt20 - LGPL Crypto library
USN-4236-1 fixed a vulnerability in Libgcrypt. This update provides the corresponding fix for Ubuntu 16.04 LTS.
Original advisory details:
It was discovered that Libgcrypt was susceptible to a ECDSA timing attack. An attacker could possibly use this attack to recover sensitive information.
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.