USN-2361-1: NSS vulnerability

24 September 2014

nss vulnerability

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

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


Fraudulent security certificates could allow sensitive information to be exposed when accessing the Internet.

Software Description

  • nss - Network Security Service library


Antoine Delignat-Lavaud and others discovered that NSS incorrectly handled parsing ASN.1 values. An attacker could use this issue to forge RSA certificates.

Update instructions

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

Ubuntu 14.04 LTS
libnss3 - 2:3.17.1-0ubuntu0.14.04.1
Ubuntu 12.04 LTS
libnss3 - 3.17.1-0ubuntu0.12.04.1
Ubuntu 10.04 LTS
libnss3-1d - 3.17.1-0ubuntu0.10.04.1

To update your system, please follow these instructions:

This update uses a new upstream release, which includes additional bug fixes. 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.