Your submission was sent successfully! Close

USN-4098-1: wpa_supplicant and hostapd vulnerability

14 August 2019

wpa_supplicant and hostapd could be made to expose sensitive information over the network.



  • wpa - client support for WPA and WPA2


It was discovered that wpa_supplicant and hostapd were vulnerable to a side
channel attack against EAP-pwd. A remote attacker could possibly use this
issue to recover certain passwords.

Update instructions

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

Ubuntu 19.04
Ubuntu 18.04

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