Bug 2048941 (CVE-2021-46149)

Summary: CVE-2021-46149 mediawiki: searching for a very long key may lead to DoS
Product: [Other] Security Response Reporter: Marian Rehak <mrehak>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: aos-bugs, Axel.Thimm, bmontgom, eparis, jburrell, jokerman, mike, nstielau, puiterwijk, shurley, sponnaga
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2022-02-03 18:29:31 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2048942    
Bug Blocks: 2048943    

Description Marian Rehak 2022-02-01 08:44:49 UTC 
A denial of service (resource consumption) can be accomplished by searching for a very long key in a Language Name Search.

Reference:

https://phabricator.wikimedia.org/T293749
Comment 1 Marian Rehak 2022-02-01 08:45:02 UTC 
Created mediawiki tracking bugs for this issue:

Affects: fedora-all [bug 2048942]
Comment 2 Michael Cronenworth 2022-02-01 14:27:39 UTC 
Please stop opening these bugs.

These are against extensions that are NOT shipped in the mediawiki package.