An issue was discovered in MediaWiki through 1.38.1. The lemma length of a Wikibase lexeme is currently capped at a thousand characters. Unfortunately, this length is not validated, allowing much larger lexemes to be created, which introduces various denial-of-service attack vectors within the Wikibase and WikibaseLexeme extensions. This is related to Special:NewLexeme and Special:NewProperty.
References
Link | Resource |
---|---|
https://gerrit.wikimedia.org/r/q/I8171bfef73e525d73efa60b407ce147130ea4742 | Vendor Advisory |
https://gerrit.wikimedia.org/r/q/Id89a9b08e40f075d2d422cafd03668dff3ce7fc9 | Vendor Advisory |
https://phabricator.wikimedia.org/T308659 | Mailing List |
https://gerrit.wikimedia.org/r/q/I8171bfef73e525d73efa60b407ce147130ea4742 | Vendor Advisory |
https://gerrit.wikimedia.org/r/q/Id89a9b08e40f075d2d422cafd03668dff3ce7fc9 | Vendor Advisory |
https://phabricator.wikimedia.org/T308659 | Mailing List |
Configurations
History
21 Nov 2024, 07:10
Type | Values Removed | Values Added |
---|---|---|
References | () https://gerrit.wikimedia.org/r/q/I8171bfef73e525d73efa60b407ce147130ea4742 - Vendor Advisory | |
References | () https://gerrit.wikimedia.org/r/q/Id89a9b08e40f075d2d422cafd03668dff3ce7fc9 - Vendor Advisory | |
References | () https://phabricator.wikimedia.org/T308659 - Mailing List |
Information
Published : 2022-06-28 13:15
Updated : 2024-11-21 07:10
NVD link : CVE-2022-34750
Mitre link : CVE-2022-34750
CVE.ORG link : CVE-2022-34750
JSON object : View
Products Affected
mediawiki
- mediawiki
CWE
CWE-770
Allocation of Resources Without Limits or Throttling