Vulnerability Details : CVE-2021-41799
MediaWiki before 1.36.2 allows a denial of service (resource consumption because of lengthy query processing time). ApiQueryBacklinks (action=query&list=backlinks) can cause a full table scan.
Vulnerability category: Denial of service
Products affected by CVE-2021-41799
- 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-2021-41799
0.39%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 73 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-41799
| 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 | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2021-41799
-
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-2021-41799
-
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
-
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
-
https://security.gentoo.org/glsa/202305-24
MediaWiki: Multiple Vulnerabilities (GLSA 202305-24) — Gentoo security
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https://phabricator.wikimedia.org/T290394
LoginPermissions Required
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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
-
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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