CVE-2006-2655
The build process for ypserv in FreeBSD 5.3 up to 6.1 accidentally disables access restrictions when using the /var/yp/securenets file, which allows remote attackers to bypass intended access restrictions.
Date published : 2006-06-01
http://www.securityfocus.com/bid/18204
http://security.freebsd.org/advisories/FreeBSD-SA-06:15.ypserv.asc