CVE-2024-39281 Unbounded allocation in ctl(4) CAM Target Layer
A local attacker can trigger unbounded memory allocation in the FreeBSD kernel's CAM Target Layer, causing a denial of service.
- 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-2024-39281?
CVE-2024-39281 is a medium-severity denial of service vulnerability in FreeBSD, published on 12 Nov 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The command ctl_persistent_reserve_out allows the caller to specify an arbitrary size which will be passed to the kernel's memory allocator.
Weakness: CWE-20
Which versions are affected by CVE-2024-39281?
How do I fix CVE-2024-39281?
No fix has been published for CVE-2024-39281 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-2024-39281 being exploited?
There is no known exploitation of CVE-2024-39281 in the wild and no public exploit code.
Sources
Also known as GHSA-g446-rqm3-4h89.