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AMD’s trusted execution environment blown wide open by new BadRAM attack (arstechnica.com)

submitted 2 weeks ago by [email protected] to c/[email protected]

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cross-posted from: https://lemmy.world/post/22994927

On Tuesday, an international team of researchers unveiled BadRAM, a proof-of-concept attack that completely undermines security assurances that chipmaker AMD makes to users of one of its most expensive and well-fortified microprocessor product lines. Starting with the AMD Epyc 7003 processor, a feature known as SEV-SNP—short for Secure Encrypted Virtualization and Secure Nested Paging—has provided the cryptographic means for certifying that a VM hasn’t been compromised by any sort of backdoor installed by someone with access to the physical machine running it.

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