Description
Improper handling of invalid nested page table entries in the IOMMU may allow a privileged attacker to induce page table entry (PTE) faults to bypass RMP checks in SEV-SNP, potentially leading to a loss of guest memory integrity.
CVSS breakdown
CVSS 3.1
Attack Vector
Local
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
High
Availability
None
Affected products
- AMD / AMD EPYC™ 9004 ProcessorsGenoaPI 1.0.0.C – GenoaPI 1.0.0.C
- AMD / AMD EPYC™ 9004 ProcessorsSEV FW1.55.36 – SEV FW1.55.36
- AMD / AMD EPYC™ Embedded 9004EmbGenoaPI-SP5 1.0.0.7 – EmbGenoaPI-SP5 1.0.0.7