Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mediawiki | Mediawiki | <= 1.19.23 |
Related Weaknesses (CWE)
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.htmlPatchVendor 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.htmlPatchVendor Advisory
- https://phabricator.wikimedia.org/T85848Exploit
- https://security.gentoo.org/glsa/201510-05
FAQ
What is CVE-2015-2942?
CVE-2015-2942 is a vulnerability with a CVSS score of 7.1 (HIGH). 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 ...
How severe is CVE-2015-2942?
CVE-2015-2942 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2015-2942?
Check the references section above for vendor advisories and patch information. Affected products include: Mediawiki Mediawiki.