CVE-2023-20518 Information disclosure in AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics
A privileged attacker with BIOS or UEFI access can exploit incomplete cleanup to exfiltrate the Master Encryption Key, compromising data confidentiality.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-20518?
CVE-2023-20518 is a low-severity vulnerability in AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics, published on 13 Aug 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-459
Which versions are affected by CVE-2023-20518?
How do I fix CVE-2023-20518?
No fix has been published for CVE-2023-20518 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-20518 being exploited?
There is no known exploitation of CVE-2023-20518 in the wild and no public exploit code.
Sources
Also known as GHSA-rj66-wvw5-rcvp.