setxconf in Corel Linux allows local users to gain root access via the -T parameter, which executes the user's .xserverrc file.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2000-0194
http://www.securityfocus.com/bid/1008
http://archives.neohapsis.com/archives/bugtraq/2000-02/0323.html