AMD chips vulnerable?

I read [1] but I am not knowledgeable enough to know how serious this is.

Anyone any ideas if I (with my AMD Ryzen 7 5825U machine) should worry?

[1] https://www.wired.com/story/amd-chip-sinkclose-flaw/

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I have a 7800X3D. Not worried.

a) Patches are being released.
b) You would need kernel-level access to the machine, which unless you’re letting every unknown app on the farm run free on your system, is unlikely to be a commonality.

Common sense and good internet hygiene are always a good start.

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Can’t access your link but the ‘Sinclose’ vulnerability requires access to the kernel so if that has happened it doesn’t really matter.

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There isn’t enough information in that article to say for sure. There also enough information about how the mitigations will stop the attack.

That being said, don’t let statements like “it requires kernel level access” lull you into a false sense of confidence.

That being said, there isn’t much you can do right now except continue to practice smart computing practices, ensure you have amd microcode updates being loaded and keep your BIOS updated to the latest available version.

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Thank you all for your ideas about this.
I tried to find the source on which this article was based.
It was a talk at defcon[1] I believe - but I haven’t found the recording of this talk yet.
Other sources I found were not more informative than the WIRED article.

[1] https://ioactive.com/event/def-con-talk-amd-sinkclose-universal-ring-2-privilege-escalation/

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