JLANTHEA reported a denial of service flaw in the way that gdm listens on its unix domain socket. Any local user can crash the locally running X session. Acknowledgements: Red Hat would like to thank JLANTHEA for reporting this issue.
This has been laked early: http://svn.gnome.org/viewcvs/gdm2/branches/gnome-2-16/ChangeLog?r1=5100&r2=5099&pathrev=5100
This issue has been addressed in following products: Red Hat Linux Enterprise 5 Via RHSA-2007:0777, https://rhn.redhat.com/errata/RHSA-2007-0777.html