Potential Loss of Confidentiality Due to Incomplete BIOS Menu or UEFI Shell Cleanup

CVE-2023-20518
1.9LOW

Key Information

Vendor
Amd
Status
Amd Epyc™ 9004 Series Processors
Amd Ryzen™ 3000 Series Desktop Processors
Amd Ryzen™ 5000 Series Desktop Processors
Amd Ryzen™ 5000 Series Desktop Processor With Radeon™ Graphics
Vendor
CVE Published:
13 August 2024

Summary

Incomplete cleanup in the ASP may expose the Master Encryption Key (MEK) to a privileged attacker with access to the BIOS menu or UEFI shell and a memory exfiltration vulnerability, potentially resulting in loss of confidentiality.

Affected Version(s)

AMD EPYC™ 9004 Series Processors <= GenoaPI 1.0.0.4

AMD Ryzen™ 3000 Series Desktop Processors <= ComboAM4V1 1.0.0.A

AMD Ryzen™ 3000 Series Desktop Processors >= ComboAM4V1 1.0.0.A

CVSS V3.1

Score:
1.9
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published.

  • Vulnerability Reserved.

Collectors

NVD DatabaseMitre Database
.