CVE-2004-0491

Name: CVE-2004-0491
Creator: NVD / NIST
Published: 2004-12-31T05:00:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.36%

Last modified Jun 16, 2026

CVE-2004-0491 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 0.36% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

0.36%

27.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Redhat	Enterprise Linux	3.0

References

Timeline

Published: Dec 31, 2004
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2004-0491?

How severe is CVE-2004-0491?

Severity scoring for CVE-2004-0491 is pending analysis. The EPSS model estimates a 0.36% probability of exploitation in the next 30 days.

How do I fix CVE-2004-0491?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2004-0491?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST