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New Linux Flaws Enable Full Root Access via PAM and Udisks Across Major Distributions
(thehackernews.com)
this post was submitted on 19 Jun 2025
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I recognize a few of those words.
Basically it's two vulns chained; first one gives a remote user privileges that a physically present user would get, in order to do things like put a thumbdrive in and have it mount. Then that udisks privilege can be subverted to escalate that level to root. So as long as you can start a remote session, you can pull root and it doesn't even look that hard.
So how would a bad actor start a remote session on my Linux pc?
Edited to add, downvoted for trying to learn is a new one for me.
They probably can not. Unless you've setup your router such that anyone can connect to an ssh instance running on your PC, and then also use a bad password. Public wifi + having something like ssh running + having a bad password.
Your PC probably doesn't satisfy these requirements (yay!), but some servers might.
I do run some servers, but use robust passwords.
You probably already do, but if you need SSH, use crowdsec, SSHGuard or fail2ban to help filter bot nets.
I have IPs hitting from all over the world, trying logins all the time. Like several per minute, I can only imagine what it would be like if I wasn't blocking IPs with multiple failed login attempts.