CVE-2015-2152: Fedoraproject Fedora

Low severity, CVSS 1.9. EPSS: 0.4% chance of exploitation in the next 30 days.

Xen 4.5.x and earlier enables certain default backends when emulating a VGA device for an x86 HVM guest qemu even when the configuration disables them, which allows local guest users to obtain access to the VGA console by (1) setting the DISPLAY environment variable, when compiled with SDL support, or connecting to the VNC server on (2) ::1 or (3) 127.0.0.1, when not compiled with SDL support.

Affected products

• Fedoraproject Fedora: version 20 only; version 21 only; version 22 only
• Xen Xen: up to and including 4.5.0

Published 2015-03-18. Last modified 2026-06-17.