CVE-2007-3721 Denial of service in n/a

Low 2.1 Published 12 Jul 2007 Updated 7 Aug 2024

Local attackers can exploit the FreeBSD kernel scheduler to monopolize CPU resources, causing a denial of service.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2007-3721?

CVE-2007-3721 is a low-severity denial of service vulnerability in Freebsd Freebsd, published on 12 Jul 2007. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The ULE process scheduler in the FreeBSD kernel gives preference to "interactive" processes that perform voluntary sleeps, which allows local users to cause a denial of service (CPU consumption), as described in "Secretly Monopolizing the CPU Without Superuser Privileges."

Which versions are affected by CVE-2007-3721?

It affects 1 product.

Products include Freebsd Freebsd.

How do I fix CVE-2007-3721?

No fix has been published for CVE-2007-3721 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-2007-3721 being exploited?

There is no known exploitation of CVE-2007-3721 in the wild and no public exploit code.

All Freebsd Freebsd vulnerabilities

Sources

Also known as GHSA-wmh5-cx85-6vrg.