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CVE-2015-2942

Date: April 13, 2015

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.

Language: PHP

Severity Score

Related Resources (9)

http://www.securityfocus.com/bid/73477
https://security.gentoo.org/glsa/201510-05
https://security-tracker.debian.org/tracker/CVE-2015-2942
https://nvd.nist.gov/vuln/detail/CVE-2015-2942
http://www.openwall.com/lists/oss-security/2015/04/01/1
https://phabricator.wikimedia.org/T85848
https://lists.wikimedia.org/pipermail/mediawiki-announce/2015-March/000175.html
http://www.openwall.com/lists/oss-security/2015/04/07/3
https://www.mend.io/vulnerability-database/CVE-2015-2942

Severity Score

Weakness Type (CWE)

Resource Management Errors

CWE-399

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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