CVE-2021-46773 Memory corruption in 3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDT
A privileged attacker can corrupt ASP memory via insufficient input validation in ABL, potentially leading to code execution or integrity loss on AMD processors.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-46773?
CVE-2021-46773 is a high-severity memory corruption vulnerability in 3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDT, published on 9 May 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Insufficient input validation in ABL may enable a privileged attacker to corrupt ASP memory, potentially resulting in a loss of integrity or code execution.
Weakness: CWE-20
Which versions are affected by CVE-2021-46773?
It affects 63 products.
Products include Amd Ryzen 1200 \(Af\) Firmware, Amd Ryzen 1600 \(Af\) Firmware, Amd Ryzen 2200g Firmware, Amd Ryzen 2200ge Firmware, Amd Ryzen 2300x Firmware, Amd Ryzen 2400g Firmware and 57 more.
How do I fix CVE-2021-46773?
No fix has been published for CVE-2021-46773 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-2021-46773 being exploited?
There is no known exploitation of CVE-2021-46773 in the wild and no public exploit code.
Sources
Also known as GHSA-fpvr-537c-jhg2.