This just in from Canonical. The following two commands are to be run in a terminal window, and they check the vulnerability of your system/server to the respective CVE:
$ sudo ua fix CVE-2021-44228 $ sudo ua fix CVE-2021-45046 Ideally you want the result: CVE-2021-45046: Apache Log4j 2 vulnerability https://ubuntu.com/security/CVE-2021-45046 No affected packages are installed. ✔ CVE-2021-45046 does not affect your system.
Safe computing, y’all!