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USN-3898-1: NSS vulnerability

27 February 2019

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



  • nss - Network Security Service library


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 18.10
Ubuntu 18.04
Ubuntu 16.04
Ubuntu 14.04

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


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