Vulnerability Details : CVE-2021-41800
MediaWiki before 1.36.2 allows a denial of service (resource consumption because of lengthy query processing time). Visiting Special:Contributions can sometimes result in a long running SQL query because PoolCounter protection is mishandled.
Vulnerability category: Denial of service
Products affected by CVE-2021-41800
- cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-41800
0.26%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 66 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-41800
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
3.9
|
1.4
|
NIST |
CWE ids for CVE-2021-41800
-
The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-41800
-
https://phabricator.wikimedia.org/T284419
LoginPermissions Required
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https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MDBPECBWN6LWNSWIQMVXK6PP4YFEUYHA/
[SECURITY] Fedora 35 Update: mediawiki-1.36.2-1.fc35 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QNEAI2T3Y65I55ZB6UE6RMC662RZTGRX/
[SECURITY] Fedora 34 Update: mediawiki-1.35.4-1.fc34 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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https://github.com/wikimedia/mediawiki/commit/781caf83dba90c18349f930bbaaa0e89f003f874
SECURITY: fix PoolCounter protection of Special:Contributions · wikimedia/mediawiki@781caf8 · GitHubPatch;Third Party Advisory
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https://security.gentoo.org/glsa/202305-24
MediaWiki: Multiple Vulnerabilities (GLSA 202305-24) — Gentoo security
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https://lists.wikimedia.org/hyperkitty/list/wikitech-l@lists.wikimedia.org/thread/2IFS5CM2YV4VMSODPX3J2LFHKSEWVFV5/
Security and maintenance release: 1.31.16 / 1.35.4 / 1.36.2 - Wikitech-l - lists.wikimedia.orgRelease Notes;Third Party Advisory
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https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CJDYJQWT43GBD6GNQ4OW7JOZ6WQ6DZTN/
[SECURITY] Fedora 33 Update: mediawiki-1.35.4-1.fc33 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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