USN-4677-2: p11-kit vulnerability

USN-4677-2: p11-kit vulnerability

USN-4677-1 fixed a vulnerability in p11-kit. This update provides
the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

David Cook discovered that p11-kit incorrectly handled certain memory
operations. An attacker could use this issue to cause p11-kit to crash,
resulting in a denial of service, or possibly execute arbitrary code.
Source: USN-4677-2: p11-kit vulnerability