USN-2577-1: wpa_supplicant vulnerability

23 April 2015

wpa vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 15.04
  • Ubuntu 14.10
  • Ubuntu 14.04 LTS


wpa_supplicant could be made to crash, expose memory, or run programs if it received specially crafted network traffic.

Software Description

  • wpa - client support for WPA and WPA2


It was discovered that wpa_supplicant incorrectly handled SSID information when creating or updating P2P peer entries. A remote attacker could use this issue to cause wpa_supplicant to crash, resulting in a denial of service, expose memory contents, or possibly execute arbitrary code.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 15.04
wpasupplicant - 2.1-0ubuntu7.1
Ubuntu 14.10
wpasupplicant - 2.1-0ubuntu4.1
Ubuntu 14.04 LTS
wpasupplicant - 2.1-0ubuntu1.2

To update your system, please follow these instructions:

After a standard system update you need to reboot your computer to make all the necessary changes.