CVE-2009-2649 Denial of service in n/a
Local users with /dev access can crash the FreeBSD kernel via a crafted IOCTL request in the IATA driver.
- 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-2009-2649?
CVE-2009-2649 is a medium-severity denial of service vulnerability in Freebsd Freebsd, published on 30 Jul 2009. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The IATA (ata) driver in FreeBSD 6.0 and 8.0, when read access to /dev is available, allows local users to cause a denial of service (kernel panic) via a certain IOCTL request with a large count, which triggers a malloc call with a large value.
Weakness: CWE-264
Which versions are affected by CVE-2009-2649?
It affects 1 product.
Products include Freebsd Freebsd.
How do I fix CVE-2009-2649?
No fix has been published for CVE-2009-2649 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-2009-2649 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-2649 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Freebsd Freebsd
Sources
Also known as GHSA-7h6h-gqjm-2r96.