USN-3969-1 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 and hostapd incorrectly handled unexpected fragments when using EAP-pwd. A remote attacker could possibly use this issue to cause a denial of service.
{
"binaries": [
{
"binary_name": "hostapd",
"binary_version": "1:2.1-0ubuntu1.7+esm1"
},
{
"binary_name": "wpagui",
"binary_version": "2.1-0ubuntu1.7+esm1"
},
{
"binary_name": "wpasupplicant",
"binary_version": "2.1-0ubuntu1.7+esm1"
}
],
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}