USN-4136-2: wpa_supplicant and hostapd vulnerability
18 September 2019
wpa_supplicant could be made to be disconnected and require reconnection to the network if it received a specially crafted management frame.
Releases
Packages
- wpa - client support for WPA and WPA2
- wpasupplicant - client support for WPA and WPA2
Details
USN-4136-1 fixed a vulnerability in wpa_supplicant. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.
Original advisory details:
It was discovered that wpa_supplicant incorrectly handled certain management
frames. An attacker could possibly use this issue to cause a denial of service.
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 14.04
Ubuntu 12.04
After a standard system update you need to reboot your computer to make
all the necessary changes.
References
Related notices
- USN-4136-1: wpasupplicant-udeb, wpasupplicant, wpagui, hostapd, wpa