CVE-2023-20584 Information

Description

IOMMU improperly handles certain special address ranges with invalid device table entries (DTEs) which may allow an attacker with privileges and a compromised Hypervisor to induce DTE faults to bypass RMP checks in SEV-SNP potentially leading to a loss of guest integrity.

Reference

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3003.html