Unrated severityNVD Advisory· Published Feb 13, 2024· Updated Mar 17, 2025
CVE-2023-31347
CVE-2023-31347
Description
Due to a code bug in Secure_TSC, SEV firmware may allow an attacker with high privileges to cause a guest to observe an incorrect TSC when Secure TSC is enabled potentially resulting in a loss of guest integrity.
Affected products
3- AMD/3rd Gen AMD EPYC™ Processorsv5Range: various
- AMD/4th Gen AMD EPYC™ Processorsv5Range: various
Patches
Vulnerability mechanics
References
1- www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3007mitrevendor-advisory
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