Possible Overwrite of Guest Memory or UMC Seed in SNP Firmware

CVE-2024-21980
7.9HIGH

Key Information

Vendor
Amd
Status
3rd Gen Amd Epyc™ Processors
4th Gen Amd Epyc™ Processors
Amd Epyc™ Embedded 7003
Amd Epyc™ Embedded 9003
Vendor
CVE Published:
5 August 2024

Summary

Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to potentially overwrite a guest's memory or UMC seed resulting in loss of confidentiality and integrity.

Affected Version(s)

3rd Gen AMD EPYC™ Processors <= various

4th Gen AMD EPYC™ Processors <= various

AMD EPYC™ Embedded 7003 <= various

CVSS V3.1

Score:
7.9
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published.

  • Vulnerability Reserved.

Collectors

NVD DatabaseMitre Database
.