=========================================================================Ubuntu Security Notice USN-3028-1
July 11, 2016

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

- Ubuntu 16.04 LTS
- Ubuntu 15.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

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

Software Description:
- nspr: NetScape Portable Runtime Library

Details:

It was discovered that NSPR incorrectly handled memory allocation. A remote
attacker could use this issue to cause NSPR 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 16.04 LTS:
  libnspr4                        2:4.12-0ubuntu0.16.04.1

Ubuntu 15.10:
  libnspr4                        2:4.12-0ubuntu0.15.10.1

Ubuntu 14.04 LTS:
  libnspr4                        2:4.12-0ubuntu0.14.04.1

Ubuntu 12.04 LTS:
  libnspr4                        4.12-0ubuntu0.12.04.1

After a standard system update you need to restart your session to make all
the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-3028-1
  CVE-2016-1951

Package Information:
  https://launchpad.net/ubuntu/+source/nspr/2:4.12-0ubuntu0.16.04.1
  https://launchpad.net/ubuntu/+source/nspr/2:4.12-0ubuntu0.15.10.1
  https://launchpad.net/ubuntu/+source/nspr/2:4.12-0ubuntu0.14.04.1
  https://launchpad.net/ubuntu/+source/nspr/4.12-0ubuntu0.12.04.1