AMD releases patch to fix EPYC Server security flaw

AMD releases patch to fix EPYC Server security flaw

This bug, tracked as CVE-2023-20592, didn’t come with a severity score at press time, but you can bet it’s causing some sleepless nights in the tech world.

In a nutshell, CacheWarp exploits a glitch in the INVD instruction, potentially throwing SEV-ES and SEV-SNP guest virtual machines into a memory integrity meltdown. The researchers spilled the beans in a report, and AMD wasted no time acknowledging the hiccup, dropping a security advisory like it’s hot.