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

What is CVE-2023-20518?

A vulnerability exists in AMD's Advanced Security Platform due to incomplete cleanup processes. This flaw allows a privileged attacker, who has access to the BIOS menu or UEFI shell, to potentially expose the Master Encryption Key (MEK). The risk of memory exfiltration associated with this vulnerability may lead to a significant loss of confidentiality, allowing unauthorized access to sensitive information. Organizations using affected AMD products are urged to review their security measures and apply any available patches to mitigate the risks.

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Affected Version(s)

AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics ComboAM4V2 1.2.0.A

AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics PicassoPI-FP5 1.0.0.F

AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics PollockPI-FT5 1.0.0.5

References

https://www.amd.com/en/resources/product-security/bulleti...
vendor-advisory
https://www.amd.com/en/resources/product-security/bulleti...

CVSS V3.1

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

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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