CVE-2008-3889 Denial of service in n/a
Local attackers can cause Postfix denial of service by leaking file descriptors via crafted commands in .forward files on Linux systems.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2008-3889?
CVE-2008-3889 is a low-severity denial of service vulnerability in n/a, published on 12 Sep 2008. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Postfix 2.4 before 2.4.9, 2.5 before 2.5.5, and 2.6 before 2.6-20080902, when used with the Linux 2.6 kernel, leaks epoll file descriptors during execution of "non-Postfix" commands, which allows local users to cause a denial of service (application slowdown or exit) via a crafted command, as demonstrated by a command in a .forward file.
Weakness: CWE-20
Which versions are affected by CVE-2008-3889?
It affects 1 product.
Products include Postfix Postfix.
How do I fix CVE-2008-3889?
Upgrade to a fixed version.
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-2008-3889 being exploited?
There is no known exploitation of CVE-2008-3889 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as CVE-2008-4042, DEBIAN-CVE-2008-3889, GHSA-qgmw-69g2-f48g.