VulnerabilityModified

CVE-2023-20566

Improper address validation in ASP with SNP enabled may potentially allow an attacker to compromise guest memory integrity.

HIGH 7.5EPSS 0.37%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.37%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Improper address validation in ASP with SNP enabled may potentially allow an attacker to compromise guest memory integrity.

CVSS 3.1: 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS: 0.37% probability · 30th percentile
CISA KEV: Not listed
Affected: amd/epyc 7763 firmware · amd/epyc 7713p firmware · amd/epyc 7713 firmware · amd/epyc 7663p firmware · amd/epyc 7663 firmware · amd/epyc 7643p firmware · amd/epyc 7773x firmware · amd/epyc 7643 firmware · amd/epyc 7573x firmware · amd/epyc 75f3 firmware · amd/epyc 7543p firmware · amd/epyc 7543 firmware · amd/epyc 7513 firmware · amd/epyc 7473x firmware · amd/epyc 7453 firmware · amd/epyc 74f3 firmware · amd/epyc 7443p firmware · amd/epyc 7443 firmware · amd/epyc 7413 firmware · amd/epyc 7373x firmware · +40 more
Source: psirt@amd.com

References

https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3002Vendor Advisory
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3002Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.