AMD EPYC™ Processors contain an information disclosure vulnerability in the Secure Encrypted Virtualization with Encrypted State (SEV-ES) and Secure Encrypted Virtualization with Secure Nested Paging (SEV-SNP). A local authenticated attacker could potentially exploit this vulnerability leading to leaking guest data by the malicious hypervisor.

References

• https://nvd.nist.gov/vuln/detail/CVE-2020-12966
• https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1013
• http://www.openwall.com/lists/oss-security/2022/08/08/6