CVE-2022-23085 Potential jail escape vulnerabilities in netmap
An integer overflow in netmap allows a privileged jail process to corrupt kernel memory and escape to the host environment.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-23085?
CVE-2022-23085 is a critical vulnerability in Freebsd Freebsd, published on 15 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A user-provided integer option was passed to nmreq_copyin() without checking if it would overflow. This insufficient bounds checking could lead to kernel memory corruption.
On systems configured to include netmap in their devfs_ruleset, a privileged process running in a jail can affect the host environment.
Which versions are affected by CVE-2022-23085?
It affects 1 product.
Products include Freebsd Freebsd.
How do I fix CVE-2022-23085?
No fix has been published for CVE-2022-23085 yet. Limit exposure of the affected software until one is available.
Is CVE-2022-23085 being exploited?
There is no known exploitation of CVE-2022-23085 in the wild and no public exploit code.
Other vulnerabilities in Freebsd Freebsd
Sources
Also known as GHSA-w8p8-q938-ccr8.