[USN-2924-1] NSS vulnerability

[Marc Deslauriers]

==========================================================================
Ubuntu Security Notice USN-2924-1
March 09, 2016

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

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

- Ubuntu 15.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

NSS could be made to crash or run programs if it received specially crafted
input.

Software Description:
- nss: Network Security Service library

Details:

Francis Gabriel discovered that NSS incorrectly handled decoding certain
ASN.1 data. An remote attacker could use this issue to cause NSS to crash,
resulting in a denial of service, or possibly execute arbitrary code.

Update instructions:

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

Ubuntu 15.10:
  libnss3                         2:3.21-0ubuntu0.15.10.2

Ubuntu 14.04 LTS:
  libnss3                         2:3.21-0ubuntu0.14.04.2

Ubuntu 12.04 LTS:
  libnss3                         2:3.21-0ubuntu0.12.04.3

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-2924-1
  CVE-2016-1950

Package Information:
  https://launchpad.net/ubuntu/+source/nss/2:3.21-0ubuntu0.15.10.2
  https://launchpad.net/ubuntu/+source/nss/2:3.21-0ubuntu0.14.04.2
  https://launchpad.net/ubuntu/+source/nss/2:3.21-0ubuntu0.12.04.3


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