CVE-2024-21853 Denial of service in 4th and 5th Generation Intel(R) Xeon(R) Processors
An authorized local user can cause a denial of service on Intel Xeon processors due to improper finite state machines in hardware logic.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-21853?
CVE-2024-21853 is a medium-severity denial of service vulnerability in 4th and 5th Generation Intel(R) Xeon(R) Processors, published on 13 Nov 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Improper finite state machines (FSMs) in the hardware logic in some 4th and 5th Generation Intel(R) Xeon(R) Processors may allow an authorized user to potentially enable denial of service via local access.
Weakness: CWE-1245
Which versions are affected by CVE-2024-21853?
How do I fix CVE-2024-21853?
Apply the vendor's patch.
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-2024-21853 being exploited?
There is no known exploitation of CVE-2024-21853 in the wild and no public exploit code.
Sources
Also known as ALPINE-CVE-2024-21853, BELL-CVE-2024-21853, DEBIAN-CVE-2024-21853, GHSA-f58g-ghv3-pqv3, UBUNTU-CVE-2024-21853.