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MediaWiki: Loop with Unreachable Exit Condition ('Infinite Loop') (CVE-2021-42040)

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MediaWiki: Loop with Unreachable Exit Condition ('Infinite Loop') (CVE-2021-42040)

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
10/06/2021
Created
11/28/2021
Added
11/26/2021
Modified
11/26/2021

Description

An issue was discovered in MediaWiki through 1.36.2. A parser function related to loop control allowed for an infinite loop (and php-fpm hang) within the Loops extension because egLoopsCountLimit is mishandled. This could lead to memory exhaustion.

Solution(s)

  • mediawiki-upgrade-latest

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