Description
Insufficient checks of the RMP on host buffer access in IOMMU may allow an attacker with privileges and a compromised hypervisor to trigger an out of bounds condition without RMP checks, resulting in a potential loss of confidential guest integrity.
CVSS breakdown
CVSS 4.0
Attack Vector
Local
Attack Complexity
High
Attack Requirements
None
Privileges Required
High
User Interaction
None
Confidentiality (Vulnerable System)
None
Integrity (Vulnerable System)
High
Availability (Vulnerable System)
None
Confidentiality (Subsequent System)
None
Integrity (Subsequent System)
None
Availability (Subsequent System)
None
Affected products
- AMD / AMD EPYC™ 7003 Series ProcessorsSEV FW 1.37.23 – SEV FW 1.37.23
- AMD / AMD EPYC™ 9004 Series ProcessorsSEV FW 1.37.31 – SEV FW 1.37.31
- AMD / AMD EPYC™ Embedded 7003 Series ProcessorsEmbMilanPI-SP3 1.0.0.B – EmbMilanPI-SP3 1.0.0.B
- AMD / AMD EPYC™ Embedded 9004 Series ProcessorsEmbGenoaPI-1.0.0.A – EmbGenoaPI-1.0.0.A