I think it's this one, which came to light last month: https://www.linux-magazine.com/Online/News/Decade-Old-Sudo-Flaw-Discovered https://www.linux-magazine.co

I think it's this one, which came to light last month: https://www.linux-magazine.com/Online/News/Decade-Old-Sudo-Flaw-Discovered https://www.linux-magazine.com/Online/News/Decade-Old-Sudo-F... Edited to add: Here's another article about it (you should be able to find quite a few more, too): https://www.theregister.com/2021/01/26/qualys_sudo_bug/ https://www.theregister.com/2021/01/26/qualys_sudo_bug/