CVE-2015-2942

Description

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.

How to fix CVE-2015-2942

To remediate CVE-2015-2942, upgrade the affected package to a fixed version below.

• Debian/mediawiki—upgrade to 1:1.19.20+dfsg-2.3 or later

Is CVE-2015-2942 being exploited?

Low — EPSS is 1.7%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• from 0, < 1:1.19.20+dfsg-2.3

References (1)

• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2015-2942