AMD issues firmware fixes for Epyc, Ryzen processors
Earlier this month AMD quietly disclosed 31 new CPU vulnerabilities affecting both its Ryzen desktop chips and EPYC data center processors. AMD disclosed the flaws in coordination with several researchers, including teams from Google, Apple, and Oracle.
AMD typically releases vulnerability findings twice a year, in May and November, but decided to release the fixes early due to the relatively large number of new vulnerabilities and the timing of the mitigations.
Despite the severity and number of flaws, AMD posted the lists to its security page. The flaws include BIOS/UEFI revisions that AMD has distributed to its OEMs. Since every OEM has a different BIOS/UEFI, it’s best to check with your motherboard maker or system vendor to see if you need the updates.
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