USN-4757-1 fixed a vulnerability in wpa_supplicant and hostapd. This update provides the corresponding update for Ubuntu 14.04 ESM.
Original advisory details:
It was discovered that wpa_supplicant did not properly handle P2P (Wi-Fi Direct) provision discovery requests in some situations. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code.
{ "availability": "No subscription required", "binaries": [ { "binary_version": "2.1-0ubuntu1.7+esm4", "binary_name": "wpagui" }, { "binary_version": "2.1-0ubuntu1.7+esm4", "binary_name": "wpasupplicant-udeb" }, { "binary_version": "2.1-0ubuntu1.7+esm4", "binary_name": "wpasupplicant" } ] }