high
7.1
CWE
399
Advisory Published
Updated

CVE-2015-2937

First published: Mon Apr 13 2015(Updated: )

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.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Wikimedia MediaWiki<=1.19.23
Wikimedia MediaWiki=1.20
Wikimedia MediaWiki=1.20.1
Wikimedia MediaWiki=1.20.2
Wikimedia MediaWiki=1.20.3
Wikimedia MediaWiki=1.20.4
Wikimedia MediaWiki=1.20.5
Wikimedia MediaWiki=1.20.6
Wikimedia MediaWiki=1.20.7
Wikimedia MediaWiki=1.20.8
Wikimedia MediaWiki=1.21
Wikimedia MediaWiki=1.21.1
Wikimedia MediaWiki=1.21.2
Wikimedia MediaWiki=1.21.3
Wikimedia MediaWiki=1.21.4
Wikimedia MediaWiki=1.21.5
Wikimedia MediaWiki=1.21.6
Wikimedia MediaWiki=1.21.7
Wikimedia MediaWiki=1.21.8
Wikimedia MediaWiki=1.21.9
Wikimedia MediaWiki=1.21.10
Wikimedia MediaWiki=1.21.11
Wikimedia MediaWiki=1.22.0
Wikimedia MediaWiki=1.22.1
Wikimedia MediaWiki=1.22.2
Wikimedia MediaWiki=1.22.3
Wikimedia MediaWiki=1.22.4
Wikimedia MediaWiki=1.22.5
Wikimedia MediaWiki=1.22.6
Wikimedia MediaWiki=1.22.7
Wikimedia MediaWiki=1.22.8
Wikimedia MediaWiki=1.22.9
Wikimedia MediaWiki=1.22.10
Wikimedia MediaWiki=1.22.11
Wikimedia MediaWiki=1.22.12
Wikimedia MediaWiki=1.22.13
Wikimedia MediaWiki=1.22.14
Wikimedia MediaWiki=1.22.15
Wikimedia MediaWiki=1.23.0
Wikimedia MediaWiki=1.23.1
Wikimedia MediaWiki=1.23.2
Wikimedia MediaWiki=1.23.3
Wikimedia MediaWiki=1.23.4
Wikimedia MediaWiki=1.23.5
Wikimedia MediaWiki=1.23.6
Wikimedia MediaWiki=1.23.7
Wikimedia MediaWiki=1.23.8
Wikimedia MediaWiki=1.24.0
Wikimedia MediaWiki=1.24.1

Remedy

https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-March/000175.html

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2015-2937?

    CVE-2015-2937 is considered a high severity vulnerability due to its potential to cause denial of service in affected MediaWiki installations.

  • How does CVE-2015-2937 affect MediaWiki users?

    CVE-2015-2937 allows remote attackers to exploit a flaw that leads to quadratic blowup and excessive memory consumption in MediaWiki.

  • Which versions of MediaWiki are affected by CVE-2015-2937?

    CVE-2015-2937 affects MediaWiki versions prior to 1.19.24, 1.23.9, and any 1.24.x version before 1.24.2.

  • How do I fix CVE-2015-2937?

    To mitigate CVE-2015-2937, upgrade to MediaWiki version 1.19.24, 1.23.9, or 1.24.2 or later.

  • What are the potential consequences of exploiting CVE-2015-2937?

    Exploiting CVE-2015-2937 can result in a denial of service, making the MediaWiki site unresponsive and consuming excessive system resources.

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