CVE-2023-20555 Memory corruption in Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics “Picasso”
Insufficient input validation in AMD SMM allows attackers to corrupt memory and execute arbitrary code in System Management Mode.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-20555?
CVE-2023-20555 is a high-severity memory corruption vulnerability in AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics “Picasso”, published on 8 Aug 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Insufficient input validation in CpmDisplayFeatureSmm may allow an attacker to corrupt SMM memory by overwriting an arbitrary bit in an attacker-controlled pointer potentially leading to arbitrary code execution in SMM.
Weakness: CWE-787
Which versions are affected by CVE-2023-20555?
It affects 119 products.
Products include Amd Athlon 3015ce Firmware, Amd Athlon 3015e Firmware, Amd Athlon Gold 3150c Firmware, Amd Athlon Gold 3150g Firmware, Amd Athlon Gold 3150ge Firmware, Amd Athlon Gold 3150u Firmware and 113 more.
How do I fix CVE-2023-20555?
No fix has been published for CVE-2023-20555 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-20555 being exploited?
There is no known exploitation of CVE-2023-20555 in the wild and no public exploit code.
Other vulnerabilities in AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics “Picasso”
Sources
Also known as GHSA-vcw6-g65p-gcjw.