Description
MediaWiki before 1.19.24, 1.2x before 1.23.9, and 1.24.x before 1.24.2, when using HHVM, allows remote attackers to cause a denial of service (CPU and memory consumption) via a large number of nested entity references in an (1) SVG file or (2) XMP metadata in a PDF file, aka a "billion laughs attack," a different vulnerability than CVE-2015-2937.
References (6)
Core 6
Core References
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/201510-05
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/73477
Mailing List mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2015/04/07/3
Mailing List mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2015/04/01/1
Patch, Vendor Advisory mailing-list
x_refsource_mlist
https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-March/000175.html
Exploit x_refsource_confirm
https://phabricator.wikimedia.org/T85848
Scores
EPSS
0.0168
EPSS Percentile
82.4%
Details
CWE
CWE-399
Status
published
Products (49)
mediawiki/mediawiki
1.20
mediawiki/mediawiki
1.20.1
mediawiki/mediawiki
1.20.2
mediawiki/mediawiki
1.20.3
mediawiki/mediawiki
1.20.4
mediawiki/mediawiki
1.20.5
mediawiki/mediawiki
1.20.6
mediawiki/mediawiki
1.20.7
mediawiki/mediawiki
1.20.8
mediawiki/mediawiki
1.21
... and 39 more
Published
Apr 13, 2015
Tracked Since
Feb 18, 2026