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This is a pretty big vulnerability that includes all of the Zen 2 line-up.
That means Ryzen 2000/3000//4000/5000/7020 are all hit as well as EPYC “Rome” data center processors.
This bug allows for theft of information on the processor.
This would include user logins and encryption keys.
Note that this does not require physical access to a computer or server system.
AMD rates this as amedium severity issue.
BIOS or Operating System vendors may already have an update available that includes this microcode update.
It’s worth noting that there’s also a possibility that this will incur a performance cost.
The fix is mainly for AMD’s EPYC “Rome” processors which only just rolled out.
Tavis doesprovide a software workaroundfor those unable to apply the microcode update.
