resmgr in SUSE Linux 9.2 and 9.3, and possibly other distributions, allows local users to bypass access control rules for USB devices via "alternate syntax for specifying USB devices."
https://euvd.enisa.europa.eu/vulnerability/EUVD-2005-4781
http://www.securityfocus.com/bid/15037
http://www.novell.com/linux/security/advisories/2005_22_sr.html