CVE-2023-52556 OpenBSD 7.4 pf state race condition kernel crash
A race condition in OpenBSD's packet filter can cause a kernel panic, leading to denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-52556?
CVE-2023-52556 is a medium-severity vulnerability in Openbsd Openbsd, published on 1 Mar 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In OpenBSD 7.4 before errata 009, a race condition between pf(4)'s processing of packets and expiration of packet states may cause a kernel panic.
Weakness: CWE-367
Which versions are affected by CVE-2023-52556?
It affects 1 product.
Products include Openbsd Openbsd.
How do I fix CVE-2023-52556?
No fix has been published for CVE-2023-52556 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-52556 being exploited?
There is no known exploitation of CVE-2023-52556 in the wild and no public exploit code.
Other vulnerabilities in Openbsd Openbsd
Sources
Also known as GHSA-4x2w-rqr8-f75m.