{"id":"CVE-2004-0491","url":"https://www.cyber-defence.io/tools/cve/CVE-2004-0491","generatedAt":"2026-10-27T18:32:44.825Z","title":"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.","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.","published":"2004-12-31T05:00:00.000Z","lastModified":"2026-06-16T22:05:44.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":2.1,"severity":"LOW","vector":"AV:L/AC:L/Au:N/C:N/I:P/A:N"},"cwe":[],"affected":["redhat/enterprise linux"],"epss":{"score":0.0036,"percentile":0.29541,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.36%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"ftp://patches.sgi.com/support/free/security/advisories/20060402-01-U","source":"cve@mitre.org"},{"url":"http://marc.info/?l=linux-kernel&m=108087017610947&w=2","source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/19607","source":"cve@mitre.org"},{"url":"http://www.redhat.com/support/errata/RHSA-2005-472.html","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/13769","source":"cve@mitre.org"},{"url":"https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=126411","source":"cve@mitre.org"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10672","source":"cve@mitre.org"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1117","source":"cve@mitre.org"},{"url":"ftp://patches.sgi.com/support/free/security/advisories/20060402-01-U","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://marc.info/?l=linux-kernel&m=108087017610947&w=2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/19607","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.redhat.com/support/errata/RHSA-2005-472.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/13769","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=126411","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10672","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1117","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2004-0491","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}