CVE-2022-23091 Memory disclosure by stale virtual memory mapping
An unprivileged local user can read private data from other processes or the kernel due to a stale virtual memory mapping in FreeBSD.
- 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-2022-23091?
CVE-2022-23091 is a medium-severity vulnerability in Freebsd Freebsd, published on 15 Feb 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A particular case of memory sharing is mishandled in the virtual memory system. This is very similar to SA-21:08.vm, but with a different root cause.
An unprivileged local user process can maintain a mapping of a page after it is freed, allowing that process to read private data belonging to other processes or the kernel.
Weakness: CWE-401
Which versions are affected by CVE-2022-23091?
It affects 1 product.
Products include Freebsd Freebsd.
How do I fix CVE-2022-23091?
No fix has been published for CVE-2022-23091 yet. Limit exposure of the affected software until one is available.
Is CVE-2022-23091 being exploited?
There is no known exploitation of CVE-2022-23091 in the wild and no public exploit code.
Other vulnerabilities in Freebsd Freebsd
Sources
Also known as GHSA-66rh-g7jv-6752.