VulnerabilityModified
CVE-2023-31347
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.
MEDIUM 4.9EPSS 0.46%
Does this matter?
Lower severity and a low EPSS score (0.46%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 4.9 MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 0.46% probability · 39th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-682
- Affected
- amd/epyc 7773x firmware · amd/epyc 7763 firmware · amd/epyc 7713 firmware · amd/epyc 7713p firmware · amd/epyc 7663 firmware · amd/epyc 7663p firmware · amd/epyc 7643 firmware · amd/epyc 7643p firmware · amd/epyc 7573x firmware · amd/epyc 75f3 firmware · amd/epyc 7543 firmware · amd/epyc 7543p firmware · amd/epyc 7513 firmware · amd/epyc 7453 firmware · amd/epyc 7473x firmware · amd/epyc 74f3 firmware · amd/epyc 7443 firmware · amd/epyc 7443p firmware · amd/epyc 7413 firmware · amd/epyc 7373x firmware · +40 more
- Source
- psirt@amd.com
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.