Vulnerability Description
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.
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mediawiki | Mediawiki | < 1.36.2 |
| Fedoraproject | Fedora | 33 |
Related Weaknesses (CWE)
References
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.wikimedia.org/hyperkitty/list/wikitech-l%40lists.wikimedia.org/thr
- https://phabricator.wikimedia.org/T290394Permissions Required
- https://security.gentoo.org/glsa/202305-24
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.wikimedia.org/hyperkitty/list/wikitech-l%40lists.wikimedia.org/thr
- https://phabricator.wikimedia.org/T290394Permissions Required
- https://security.gentoo.org/glsa/202305-24
FAQ
What is CVE-2021-41799?
CVE-2021-41799 is a vulnerability with a CVSS score of 7.5 (HIGH). 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.
How severe is CVE-2021-41799?
CVE-2021-41799 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-41799?
Check the references section above for vendor advisories and patch information. Affected products include: Mediawiki Mediawiki, Fedoraproject Fedora.