CVE-2017-5885: Fedoraproject Fedora

Critical severity, CVSS 9.8. EPSS: 5% chance of exploitation in the next 30 days.

Multiple integer overflows in the (1) vnc_connection_server_message and (2) vnc_color_map_set functions in gtk-vnc before 0.7.0 allow remote servers to cause a denial of service (crash) or possibly execute arbitrary code via vectors involving SetColorMapEntries, which triggers a buffer overflow.

Affected products

• Fedoraproject Fedora: version 25 only
• Gnome Gtk-Vnc: up to and including 0.6.0

Published 2017-02-28. Last modified 2026-06-17.