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165

Linux Kernel TCP Flaw With 9.8 CVSS Score Affects Ubuntu, Red Hat and Other Distributions (thehackernews.com)

submitted 3 days ago by hirihit640@sh.itjust.works to c/selfhosted@lemmy.world

27 comments fedilink hide all child comments

Every Go application since 1.24 will activate MPTCP on their sockets by default.

And I've read that this includes Syncthing, which is why I'm posting this here

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[–] probable_possum@leminal.space 4 points 3 days ago* (last edited 3 days ago) (1 children)

Thank you.

Difficult as in unlikely that the exploit works or difficult to write an exploit? The latter doesn't help me much. :)

Regarding the php2shell issue: a lot of admins took their services down until it was patched. It's more a decision based on a guess - big number bad, evil acronym scary - than actually understanding what the exploit does. One can either believe it or not.

And that's the thing about the recent exploit (multipath TCP): I can't evaluate myself, whether the issue is likely an exploitable RCE. That is one factor missing in risk assessment: is the outcome potentially fatal? Yes, rce and priv escalation. Is it likely? I can't tell.

I'm sorry. I don't mean to doubt your expertise. I simply don't know you. It is the same with hackernews, the author repeats what he's or she's told. (Good overview article though. Thanks again for it.) RN It's: Someone from the internet said don't panic. A link to a statement from the Ubuntu package maintainer or distribution would make me feel at ease. I still couldn't make sure for myself - a lack of time and competence in the field - but I would trust it.

[–] Ooops@feddit.org 3 points 3 days ago* (last edited 3 days ago) (1 children)

Difficult as in unlikely that the exploit works or difficult to write an exploit?

Difficult as in it's a race condition that can theoretically be exploited when you get the timing right. But timing, if it's not on a well-known isolated system right before you in some lab, depends on a million details, some –once we are talking about real-life examples– outside your control.

[–] probable_possum@leminal.space 4 points 3 days ago

Yes. Anthropic wrote: it took them like an hour to get it right on their lab system. That's different than the wild wild internet.