Description
Improper signature verification in AMD CPU ROM microcode patch loader may allow an attacker with local administrator privilege to load malicious CPU microcode resulting in loss of confidentiality and integrity of a confidential guest running under AMD SEV-SNP.
CVSS breakdown
CVSS 3.1
Attack Vector
Local
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None
Affected products
- AMD / AMD EPYC™ 7001 SeriesNaplesPI 1.0.0.P – NaplesPI 1.0.0.P
- AMD / AMD EPYC™ 7002 SeriesRomePI 1.0.0.L – RomePI 1.0.0.L
- AMD / AMD EPYC™ 7003 SeriesMilanPI 1.0.0.F – MilanPI 1.0.0.F
- AMD / AMD EPYC™ 9004 SeriesGenoa 1.0.0.E – Genoa 1.0.0.E