USN-2452-1: NSS vulnerability

7 January 2015

nss vulnerability

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

  • Ubuntu 14.10
  • Ubuntu 14.04 LTS
  • Ubuntu 12.04 LTS
  • Ubuntu 10.04 LTS


NSS could be made to expose sensitive information over the network.

Software Description

  • nss - Network Security Service library


It was discovered that NSS incorrectly handled certain ASN.1 lengths. A remote attacker could possibly use this issue to perform a data-smuggling attack.

Update instructions

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

Ubuntu 14.10
libnss3 - 2:3.17.1-0ubuntu1.1
Ubuntu 14.04 LTS
libnss3 - 2:3.17.1-0ubuntu0.14.04.2
Ubuntu 12.04 LTS
libnss3 - 3.17.1-0ubuntu0.12.04.2
Ubuntu 10.04 LTS
libnss3-1d - 3.17.1-0ubuntu0.10.04.2

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 and Chromium, to make all the necessary changes.