SEV Firmware Arbitrary Code Execution

Summary

Academic researchers reported issues affecting SEV-SNP that could potentially enable arbitrary code execution on the AMD Security Processor under certain conditions. The attack requires physical access and falls outside the SEV-SNP threat model. While outside the threat model, AMD decided to provide defense-in-depth mitigations for this issue.

Acknowledgement 

AMD thanks Muyan Shen for sharing the report and engaging in coordinated disclosure.

References

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