Re: smtp proxy- yes or no?

From: Paul Robertson (no email)
Date: Thu Jan 03 2002 - 16:48:06 EST


On Thu, 3 Jan 2002 wrote:

> > None the less- BIND's history doesn't instill confidence and irregardless
> > of that protecting BIND only makes sense on a mail server.
>
> It makes sense to claim this about BIND 4 and BIND 8. It doesn't make
> sense to claim this about BIND 9, since BIND 9 is a completely new
> implementation.

Claim that it's an intrusion vector- not yet. Claim that it's large
probably buggy code that needs protecting- History isn't *just* about
codebase, it's also about complexity of the problem and behaviour sets.

Want DoS attacks?

1129. [bug] Multithreaded servers could crash under heavy
                       resolution load due to a race condidtion. [RT #2018]

1111. [bug] Multithreaded servers could deadlock processing
                       recursive queries due to a locking hieararchy
                       violation in adb.c. [RT #2017]

1106. [bug] After seeing an out of range TTL, nsupdate would
                       treat all TTLs as out of range. [RT #2001]

1083. [bug] The default control channel listened on the
                       wildcard adress, not the loopback as documented.
                       [RT #1975]

That's since 9.2.0a1- and doesn't cover everything.

It's like saying that FTP doesn't suck[1] just becaues WU is buggy as
hell- *most* FTP servers have had holes, not necessarily because of shared
code, but also due to the historical issues surrounding anyone
implementing the protocol and traditional server behaviour.

Paul
[1] It does suck.
-----------------------------------------------------------------------------
Paul D. Robertson "My statements in this message are personal opinions
      which may have no basis whatsoever in fact."

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