Multiple DNS implementations vulnerable to cache poisoning

Jay R. Ashworth jra at
Wed Jul 9 13:16:53 UTC 2008

On Wed, Jul 09, 2008 at 04:39:49AM -0400, Jean-Fran?ois Mezei wrote:
> My DNS server made the various DNS requests from the same port and is
> thus vulnerable. (VMS TCPIP Services so no patches expected).

Well, yes, but unless I've badly misunderstood the situation, all
that's necessary to mitigate this bug is to interpose a non-buggy
recursive resolver between the broken machine and the Internet at
large, right?

So just make sure your corporate/campus edge router has a reasonable
named on it, and point everything broken at that, and you should be ok,
even though, as you note, DEC won't be updating VMS any time soon.  :-)

-- jr 'Compaq?  No, that's HP now, isn't it?' a
Jay R. Ashworth                   Baylink                      jra at
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