Description
Improper access control in secure encrypted virtualization (SEV) could allow a privileged attacker to write to the reverse map page (RMP) during secure nested paging (SNP) initialization, potentially resulting in a loss of guest memory confidentiality and integrity.
CVSS breakdown
CVSS 4.0
Attack Vector
Local
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
High
User Interaction
None
Confidentiality (Vulnerable System)
None
Integrity (Vulnerable System)
High
Availability (Vulnerable System)
None
Confidentiality (Subsequent System)
High
Integrity (Subsequent System)
High
Availability (Subsequent System)
None
Affected products
- AMD / AMD EPYC™ 7003 Series ProcessorsMilanPI 1.0.0.H – MilanPI 1.0.0.H
- AMD / AMD EPYC™ 8004 Series ProcessorsGenoaPI 1.0.0.G – GenoaPI 1.0.0.G
- AMD / AMD EPYC™ 9004 Series ProcessorsGenoaPI 1.0.0.G – GenoaPI 1.0.0.G
- AMD / AMD EPYC™ 9005 Series ProcessorsTurinPI 1.0.0.6 – TurinPI 1.0.0.6
- AMD / AMD EPYC™ Embedded 7003 Series ProcessorsEmbMilanPI-SP3 v9 1.0.0.C – EmbMilanPI-SP3 v9 1.0.0.C
- AMD / AMD EPYC™ Embedded 8004 Series ProcessorsEmbGenoaPI-SP5 1.0.0.B – EmbGenoaPI-SP5 1.0.0.B
- AMD / AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Bergamo")EmbGenoaPI-SP5 1.0.0.B – EmbGenoaPI-SP5 1.0.0.B
- AMD / AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Genoa")EmbGenoaPI-SP5 1.0.0.B – EmbGenoaPI-SP5 1.0.0.B
- AMD / AMD EPYC™ Embedded 9005 Series ProcessorsEmbTurinPI-SP5_1.0.0.1 – EmbTurinPI-SP5_1.0.0.1