rdesktop 1.3.1 with xscreensaver 4.14, and possibly other versions, when running on Fedora and possibly other platforms, does not release the keyboard focus when xscreensaver starts, which causes the password to be entered into the active window when the user unlocks the screen.
ftp://patches.sgi.com/support/free/security/advisories/20060602-01-U.asc
secunia.com/advisories/20226
secunia.com/advisories/20456
secunia.com/advisories/20782
secunia.com/advisories/22080
securitytracker.com/id?1016150
securitytracker.com/id?1016151
support.avaya.com/elmodocs2/security/ASA-2006-107.htm
www.derkeiler.com/Newsgroups/comp.os.linux.security/2004-08/0018.html
www.jwz.org/xscreensaver/changelog.html
www.mandriva.com/security/advisories?name=MDKSA-2006:071
www.novell.com/linux/security/advisories/2006_23_sr.html
www.redhat.com/support/errata/RHSA-2006-0498.html
www.securityfocus.com/bid/17471
bugzilla.redhat.com/bugzilla/show_bug.cgi?id=188149
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10096
usn.ubuntu.com/269-1/