============================================================================
Ubuntu Security Notice USN-1687-1
January 14, 2013

nss vulnerability
============================================================================

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

- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 11.10
- 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:

Two intermediate CA certificates were mis-issued by the TURKTRUST
certificate authority. If a remote attacker were able to perform a
man-in-the-middle attack, this flaw could be exploited to view sensitive
information.

Update instructions:

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

Ubuntu 12.10:
  libnss3-1d                      3.14.1-0ckbi1.93ubuntu.0.12.10.1

Ubuntu 12.04 LTS:
  libnss3-1d                      3.14.1-0ckbi1.93ubuntu.0.12.04.1

Ubuntu 11.10:
  libnss3-1d                      3.14.1-0ckbi1.93ubuntu.0.11.10.1

Ubuntu 10.04 LTS:
  libnss3-1d                      3.14.1-0ckbi1.93ubuntu.0.10.04.1

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:
  http://www.ubuntu.com/usn/usn-1687-1
  CVE-2013-0743

Package Information:
  https://launchpad.net/ubuntu/+source/nss/3.14.1-0ckbi1.93ubuntu.0.12.10.1
  https://launchpad.net/ubuntu/+source/nss/3.14.1-0ckbi1.93ubuntu.0.12.04.1
  https://launchpad.net/ubuntu/+source/nss/3.14.1-0ckbi1.93ubuntu.0.11.10.1
  https://launchpad.net/ubuntu/+source/nss/3.14.1-0ckbi1.93ubuntu.0.10.04.1