CVE-2015-2937

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    CVE-2015-2937

    Published: 13 Apr 2015Last Modified: 16 Apr 2026

    Summary:

    Details: 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.

    References: http://www.mandriva.com/security/advisories?name=MDVSA-2015:200, https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-March/000175.html, https://security.gentoo.org/glsa/201510-05, https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-March/000175.html, 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

    Affected packages

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High