CVE-2023-20525 Denial of service in 2nd Gen EPYC
A privileged attacker can cause a denial of service by reading out-of-bounds memory in the AMD EPYC ASP Bootloader due to insufficient input validation.
- 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-2023-20525?
CVE-2023-20525 is a medium-severity denial of service vulnerability in Amd Epyc 7232p Firmware, published on 10 Jan 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Insufficient syscall input validation in the ASP Bootloader may allow a privileged attacker to read memory outside the bounds of a mapped register potentially leading to a denial of service.
Weakness: CWE-20
Which versions are affected by CVE-2023-20525?
It affects 50 products.
Products include Amd Epyc 7002 Firmware, Amd Epyc 7003 Firmware, Amd Epyc 7232p Firmware, Amd Epyc 7252 Firmware, Amd Epyc 7262 Firmware, Amd Epyc 7272 Firmware and 44 more.
How do I fix CVE-2023-20525?
No fix has been published for CVE-2023-20525 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2023-20525 being exploited?
There is no known exploitation of CVE-2023-20525 in the wild and no public exploit code.
Other vulnerabilities in Amd Epyc 7232p Firmware
Sources
Also known as GHSA-7mc6-225g-xgvw.