USN-3968-1 fixed several vulnerabilities in Sudo. This update provides the corresponding update for Ubuntu 14.04 ESM.
Original advisory details:
Florian Weimer discovered that Sudo incorrectly handled the noexec restriction when used with certain applications. A local attacker could possibly use this issue to bypass configured restrictions and execute arbitrary commands. (CVE-2016-7076, CVE-2016-7032)