USN-2063-1: NSS vulnerability

20 December 2013

nss vulnerability

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

  • Ubuntu 13.10
  • Ubuntu 13.04
  • Ubuntu 12.10
  • Ubuntu 12.04 LTS
  • Ubuntu 10.04 LTS

Summary

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

Software Description

  • nss - Network Security Service library

Details

It was discovered that an intermediate certificate was incorrectly issued by a subordinate certificate authority of a trusted CA included in NSS. This intermediate certificate could be used in a man-in-the-middle attack, and has such been marked as untrusted in this update.

Update instructions

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

Ubuntu 13.10
libnss3 - 2:3.15.3.1-0ubuntu0.13.10.1
Ubuntu 13.04
libnss3 - 2:3.15.3.1-0ubuntu0.13.04.1
Ubuntu 12.10
libnss3 - 3.15.3.1-0ubuntu0.12.10.1
Ubuntu 12.04 LTS
libnss3 - 3.15.3.1-0ubuntu0.12.04.1
Ubuntu 10.04 LTS
libnss3-1d - 3.15.3.1-0ubuntu0.10.04.1

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 and Chromium, to make all the necessary changes.

References