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.
Metrics
CVSS 2.0 7.1/10
AV:N/AC:M/Au:N/C:N/I:N/A:CWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://www.openwall.com/lists/oss-security/2015/04/01/1
- http://www.openwall.com/lists/oss-security/2015/04/07/3
- http://www.securityfocus.com/bid/73477
- https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-March/000175.htmlPatch, Vendor Advisory
- https://phabricator.wikimedia.org/T85848Exploit
- https://security.gentoo.org/glsa/201510-05
- http://www.openwall.com/lists/oss-security/2015/04/01/1
- http://www.openwall.com/lists/oss-security/2015/04/07/3
- http://www.securityfocus.com/bid/73477
- https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-March/000175.htmlPatch, Vendor Advisory
- https://phabricator.wikimedia.org/T85848Exploit
- https://security.gentoo.org/glsa/201510-05
Timeline
- Published
- Apr 13, 2015
- Last modified
- Jun 17, 2026
- NVD status
- Modified