USN-4656-1 fixed several vulnerabilities in X.Org. This update provides the corresponding update for Ubuntu 14.04 ESM.
Original advisory details:
Jan-Niklas Sohn discovered that the X.Org X Server XKB extension incorrectly handled certain inputs. A local attacker could possibly use this issue to escalate privileges.
{ "availability": "No subscription required", "binaries": [ { "xdmx-tools": "2:1.15.1-0ubuntu2.11+esm3", "xserver-xorg-xmir": "2:1.15.1-0ubuntu2.11+esm3", "xvfb": "2:1.15.1-0ubuntu2.11+esm3", "xdmx": "2:1.15.1-0ubuntu2.11+esm3", "xserver-xorg-dev": "2:1.15.1-0ubuntu2.11+esm3", "xorg-server-source": "2:1.15.1-0ubuntu2.11+esm3", "xserver-xorg-core": "2:1.15.1-0ubuntu2.11+esm3", "xserver-common": "2:1.15.1-0ubuntu2.11+esm3", "xnest": "2:1.15.1-0ubuntu2.11+esm3", "xserver-xephyr": "2:1.15.1-0ubuntu2.11+esm3", "xserver-xorg-core-udeb": "2:1.15.1-0ubuntu2.11+esm3" } ] }