COMMAND
	    ipfw
SYSTEMS AFFECTED
	    FreeBSD
PROBLEM
	    Darren Reed found following.  If someone is doing packet filtering
	    using ipfw to do packet filtering with a FreeBSD box configured to
	    do bridging, it is  relatively easy to make  the box go "boom"  as
	    none of the  standard header sanity  checks are done  prior to the
	    filter routine being called (check /sys/net/bridge.c).
SOLUTION
	    It is a feature "copied" from OpenBSD but somehow large amounts of
	    code were not copied and bugs resulted.