CVE-2016-9446: Fedoraproject Fedora

High severity, CVSS 7.5. EPSS: 3.6% chance of exploitation in the next 30 days.

The vmnc decoder in the gstreamer does not initialize the render canvas, which allows remote attackers to obtain sensitive information as demonstrated by thumbnailing a simple 1 frame vmnc movie that does not draw to the allocated render canvas.

Affected products

• Fedoraproject Fedora: version 35 only
• Gstreamer Gstreamer: before 1.11.1 (fixed in 1.11.1)
• Red Hat Enterprise Linux Desktop: version 7.0 only
• Red Hat Enterprise Linux Eus: version 7.4 only; version 7.5 only; version 7.6 only; version 7.7 only
• Red Hat Enterprise Linux Server: version 7.0 only
• Red Hat Enterprise Linux Server Aus: version 7.4 only; version 7.6 only; version 7.7 only
• Red Hat Enterprise Linux Server Tus: version 7.6 only; version 7.7 only
• Red Hat Enterprise Linux Workstation: version 7.0 only

Published 2017-01-23. Last modified 2026-06-17.