Infinite loop in MediaWiki - CVE-2021-36125
Published: July 9, 2021
Vulnerability identifier: #VU54644
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-36125
CWE-ID: CWE-835
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop in the Special:GlobalRenameRequest page. A remote attacker can consume all available system resources and cause denial of service conditions.
Affected software
MediaWiki
How to mitigate CVE-2021-36125
Install updates from vendor's website.
MediaWiki - addressed in versions 1.31.15, 1.35.3, 1.36.1