Description
A use after free in the SEV firmware could allow a malicous hypervisor to activate a migrated guest with the SINGLE_SOCKET policy on a different socket than the migration agent potentially resulting in loss of integrity.
CVSS breakdown
CVSS 4.0
Attack Vector
Local
Attack Complexity
Low
Attack Requirements
None
Privileges Required
High
User Interaction
None
Confidentiality (Vulnerable System)
None
Integrity (Vulnerable System)
None
Availability (Vulnerable System)
None
Confidentiality (Subsequent System)
None
Integrity (Subsequent System)
Low
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 1.0.0.5 – TurinPI 1.0.0.5
- 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 9003 Series ProcessorsEmbGenoaPI-SP5 1.0.0.B – EmbGenoaPI-SP5 1.0.0.B
- AMD / AMD EPYC™ Embedded 9004 Series ProcessorsEmbGenoaPI-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