So there are a lot of people subtweeting a vulnerability in CUPS. There doesn't seem to be much hard information. This is the clearest thing I've seen https://infosec.exchange/@wdormann/113205636224106943
I think: I don't own a printer. I will temporarily disable CUPS until Ubuntu fixes this. I check ps aux and see many processes with cupsd in the name, mostly running inside a snap. I run:
sudo snap stop cups
sudo snap disable cups
It prints success. I run ps aux again. There is still a /usr/sbin/cupsd running.
Oh. (1/2)
Pls explain to me like I am a babby mac user.
1. What would be the correct way to temporarily disable CUPS on an Ubuntu Linux system?
2. What exactly did I just do, or rather, what would be the best way to reverse it and make my system "normal"? Would rebooting fix whatever I did? If not, would running "sudo snap enable cups" and then rebooting, fix it?
3. On what timeframe should I expect Ubuntu to push to apt/"Software updater" a fix for the CUPS CVEs?
Ubuntu's a systemd distro so it'll be
systemctl stop cups
systemctl disable cups
and then you can do a
systemctl daemon-reload