CVE-2004-0491 Denial of service in n/a
Local users can bypass memory locking limits by exploiting a flaw in the mlock patch, potentially causing resource exhaustion.
- 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-2004-0491?
CVE-2004-0491 is a low-severity denial of service vulnerability in Redhat Enterprise Linux, published on 6 Feb 2005. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The linux-2.4.21-mlock.patch in Red Hat Enterprise Linux 3 does not properly maintain the mlock page count when one process unlocks pages that belong to another process, which allows local users to mlock more memory than specified by the rlimit.
Which versions are affected by CVE-2004-0491?
It affects 1 product.
Products include Redhat Enterprise Linux.
How do I fix CVE-2004-0491?
Apply the vendor's patch.
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-2004-0491 being exploited?
There is no known exploitation of CVE-2004-0491 in the wild and no public exploit code.
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Sources
Also known as GHSA-f79w-jc47-24f4.