This closes the remotely exploitable vulnerability documented at ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2004-009.txt.asc http://www.vuxml.org/freebsd/c4b025bb-f05d-11d8-9837-000c41e2cdad.html
The "portable" release of this is just lagging way too far behind what is in NetBSD's base.