@geert In case of Debian:
https://security-tracker.debian.org/tracker/source-package/sudo
So if you run 'testing' there is no fixed package yet, as that gets no security fixes, just regular package updates.
For other deb distros there are trackers too.
@tbr
$ sudo
bash: sudo: command not found
Guess I'm OK.
@tbr /me runs "sudo apt update" => "All packages are up to date."