From owner-freebsd-ipfw@FreeBSD.ORG  Sat Jul 14 18:51:42 2012
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Date: Sun, 15 Jul 2012 04:51:39 +1000 (EST)
From: Ian Smith <smithi@nimnet.asn.au>
To: Chris Rees <utisoft@gmail.com>
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Cc: freebsd-ipfw@freebsd.org, freebsd-bugs@freebsd.org
Subject: Re: kern/165939: [ipw] security bug: incomplete firewall rules
 loaded if tables are used in ipfw.conf
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On Sat, 14 Jul 2012 18:59:54 +0100, Chris Rees wrote:
 > On 14 Jul 2012 18:49, "Ian Smith" <smithi@nimnet.asn.au> wrote:
 > >
 > > On Sat, 14 Jul 2012, crees@freebsd.org wrote:
 > >  > http://www.freebsd.org/cgi/query-pr.cgi?pr=165939
[..]
 > > Yes, to such a ruleset you'd need to add 'table all flush' too.
 > >
 > > ipfw flush specifically does not flush tables.  I've long relied upon
 > > that, using mostly static tables only reloaded from a file saved hourly
 > > by cron, when $firewall_script finds tables are not loaded - ie at boot.
 > 
 > Not A Bug then?

Not For Me at least, Chris.  Maybe ipfw(8) isn't specific enough about 
flush?  I can't speak for others, but don't think flushing all tables in 
rc.firewall useful when it's easy to include in your particular ruleset.

cheers, Ian