CVE-2015-2937
HIGH severity · CVSS 7.1 · CWE-399
7.1CVSS HIGH
Summary
MediaWiki before 1.19.24, 1.2x before 1.23.9, and 1.24.x before 1.24.2, when using HHVM or Zend PHP, allows remote attackers to cause a denial of service ("quadratic blowup" and memory consumption) via an XML file containing an entity declaration with long replacement text and many references to this entity, a different vulnerability than CVE-2015-2942.
Impact & exploitability
Attack vectorNetwork
Attack complexity—
Privileges required—
User interaction—
Confidentiality impactNone
Integrity impactNone
Availability impact—
Exploit probability (EPSS)3%
AV:N/AC:M/Au:N/C:N/I:N/A:C
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-March/000175.html ↗
Additional information
- NVD record
- https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-March/000175.htmlPatch
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:200
- 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://phabricator.wikimedia.org/T71210
- https://security.gentoo.org/glsa/201510-05