Ubuntu 4951-1: Flatpak vulnerability
Summary
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 20.10: flatpak 1.8.2-1ubuntu0.2 libflatpak0 1.8.2-1ubuntu0.2 Ubuntu 20.04 LTS: flatpak 1.6.5-0ubuntu0.3 libflatpak0 1.6.5-0ubuntu0.3 Ubuntu 18.04 LTS: flatpak 1.0.9-0ubuntu0.3 libflatpak0 1.0.9-0ubuntu0.3 In general, a standard system update will make all the necessary changes.
References
https://ubuntu.com/security/notices/USN-4951-1
CVE-2021-21381
Package Information
https://launchpad.net/ubuntu/+source/flatpak/1.8.2-1ubuntu0.2 https://launchpad.net/ubuntu/+source/flatpak/1.6.5-0ubuntu0.3 https://launchpad.net/ubuntu/+source/flatpak/1.0.9-0ubuntu0.3