Virtual Machine (VM) Integrity Bypass through IOMMU Misconfiguration

CVE-2023-20584
5.3MEDIUM

Key Information

Vendor
Amd
Status
Amd Epyc™ 7003 Processors
Amd Epyc™ 9004 Processors
Vendor
CVE Published:
13 August 2024

Summary

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.

Affected Version(s)

AMD EPYC™ 7003 Processors <= MilanPI 1.0.0.C

AMD EPYC™ 9004 Processors <= GenoaPI 1.0.0.B

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published.

  • Vulnerability Reserved.

Collectors

NVD DatabaseMitre Database
.