27 February 2019
A security issue affects these releases of Ubuntu and its derivatives:
NSS could be made to crash if it received specially crafted network
- nss – Network Security Service library
USN-3898-1 fixed a vulnerability in NSS. This update provides
the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
Hanno Böck and Damian Poddebniak discovered that NSS incorrectly handled
certain CMS functions. A remote attacker could possibly use this issue to
cause NSS to crash, resulting in a denial of service.
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 12.04 ESM
- libnss3 – 2:3.28.4-0ubuntu0.12.04.3
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to restart any applications that
use NSS, such as Evolution, to make all the necessary changes.