CVE-2004-0491

Severity: low (CVSS 2.1 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2004-12-31 · updated 2026-06-16

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.

Affected products

Red Hat Enterprise Linux: 3.0

References

http://marc.info/?l=linux-kernel&m=108087017610947&w=2
http://secunia.com/advisories/19607
http://www.redhat.com/support/errata/RHSA-2005-472.html
http://www.securityfocus.com/bid/13769
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=126411
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10672
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1117
http://marc.info/?l=linux-kernel&m=108087017610947&w=2
http://secunia.com/advisories/19607
http://www.redhat.com/support/errata/RHSA-2005-472.html

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