Comment 2 for bug 1939870

Thank you for taking the time to respond. I will try to get hold of the maintainers.

I've already mitigated on my systems as a precautionary measure.

I can see that the Debian team is already on this:
https://security-tracker.debian.org/tracker/CVE-2021-32749

I am sure the Ubuntu package maintainers are aware.

https://packages.ubuntu.com/focal/fail2ban