CVE-2023-20566 Memory corruption in 3rd Gen AMD EPYC™ Processors
Attackers can compromise guest memory integrity in AMD EPYC processors with SNP enabled due to improper address validation.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-20566?
CVE-2023-20566 is a medium-severity memory corruption vulnerability in Amd Epyc 72f3 Firmware, published on 14 Nov 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Improper address validation in ASP with SNP enabled may potentially allow an attacker to compromise guest memory integrity.
Which versions are affected by CVE-2023-20566?
It affects 65 products.
Products include Amd Epyc 7203 Firmware, Amd Epyc 7203p Firmware, Amd Epyc 72f3 Firmware, Amd Epyc 7303 Firmware, Amd Epyc 7303p Firmware, Amd Epyc 7313 Firmware and 59 more.
How do I fix CVE-2023-20566?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-20566 being exploited?
There is no known exploitation of CVE-2023-20566 in the wild and no public exploit code.
Other vulnerabilities in Amd Epyc 72f3 Firmware
- CVE-2024-21980 Memory corruption in 3rd Gen AMD EPYC™ Processors
- CVE-2023-20591 Other in AMD EPYC™ 7003 Series Processors
- CVE-2023-20533 Denial of service in 2nd Gen AMD EPYC™ Processors
- CVE-2023-31355 Memory corruption in 3rd Gen AMD EPYC™ Processors
- CVE-2024-21978 Information disclosure in 3rd Gen AMD EPYC™ Processors
Sources
Also known as GHSA-v2hc-cp84-vjqv.