VDB-74809 · CVE-2015-2942 · BID 73477

MediaWiki up to 1.19.23/1.23.8/1.24.1 SVG/PDF File resource management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability classified as problematic was found in MediaWiki up to 1.19.23/1.23.8/1.24.1 (Content Management System). Affected by this vulnerability is an unknown function of the component SVG/PDF File Handler. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. The summary by CVE is:

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.

The weakness was shared 03/31/2015 by Bawolff with iSEC Partners (oss-sec). The advisory is shared at openwall.com. This vulnerability is known as CVE-2015-2942 since 04/07/2015. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 84164 (MediaWiki < 1.19.24 / 1.23.9 / 1.24.2 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses. The commercial vulnerability scanner Qualys is able to test this issue with plugin 13127 (Mediawiki Multiple Vulnerabilities (MediaWiki Security Release: 1.19.24, 1.23.9 and 1.24.2)).

Upgrading to version 1.19.24, 1.23.9 or 1.24.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (84164).






CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
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VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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Class: Resource management
CWE: CWE-399 / CWE-404

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Nessus ID: 84164
Nessus Name: MediaWiki < 1.19.24 / 1.23.9 / 1.24.2 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 801900
OpenVAS Name: MediaWiki Multiple Vulnerabilities - Mar15 (Windows)
OpenVAS File: 🔍
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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: MediaWiki 1.19.24/1.23.9/1.24.2


03/31/2015 🔍
03/31/2015 +0 days 🔍
04/07/2015 +7 days 🔍
04/13/2015 +6 days 🔍
04/13/2015 +0 days 🔍
04/14/2015 +1 days 🔍
04/26/2015 +12 days 🔍
05/03/2022 +2564 days 🔍


Product: mediawiki.org

Advisory: openwall.com
Researcher: Bawolff
Organization: iSEC Partners
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-2942 (🔍)
Vulnerability Center: 49883 - MediaWiki 1.1x and 1.2x Remote DoS \, Medium
SecurityFocus: 73477 - MediaWiki Multiple Security Vulnerabilities


Created: 04/14/2015 09:53 AM
Updated: 05/03/2022 10:49 PM
Changes: 04/14/2015 09:53 AM (63), 06/27/2017 03:51 AM (9), 05/03/2022 10:49 PM (3)
Complete: 🔍
Cache ID: 3:E84:40


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