USN-3898-2: NSS vulnerability

27 February 2019

nss vulnerability

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

  • Ubuntu 12.04 ESM


NSS could be made to crash if it received specially crafted network traffic.

Software Description

  • 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.

Update instructions

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:

After a standard system update you need to restart any applications that use NSS, such as Evolution, to make all the necessary changes.