Ubuntu 4757-1: wpa_supplicant and hostapd vulnerability
Summary
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 20.10: wpasupplicant 2:2.9-1ubuntu8.2 Ubuntu 20.04 LTS: wpasupplicant 2:2.9-1ubuntu4.3 Ubuntu 18.04 LTS: wpasupplicant 2:2.6-15ubuntu2.8 Ubuntu 16.04 LTS: wpasupplicant 2.4-0ubuntu6.8 After a standard system update you need to reboot your computer to make all the necessary changes.
References
https://ubuntu.com/security/notices/USN-4757-1
CVE-2021-27803
Package Information
https://launchpad.net/ubuntu/+source/wpa/2:2.9-1ubuntu8.2 https://launchpad.net/ubuntu/+source/wpa/2:2.9-1ubuntu4.3 https://launchpad.net/ubuntu/+source/wpa/2:2.6-15ubuntu2.8 https://launchpad.net/ubuntu/+source/wpa/2.4-0ubuntu6.8