libICE in XFree86 allows remote attackers to cause a denial of service by specifying a large value which is not properly checked by the SKIP_STRING macro.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2000-0501
http://www.xfree86.org/security/
http://www.securityfocus.com/bid/1369
http://archives.neohapsis.com/archives/bugtraq/2000-06/0170.html