First published: Wed Mar 18 2015(Updated: )
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.
Credit: cve@mitre.org
Affected Software | Affected Version | How to fix |
---|---|---|
Xen Xen | <=4.5.0 | |
Fedoraproject Fedora | =20 | |
Fedoraproject Fedora | =21 | |
Fedoraproject Fedora | =22 |
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