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Date: Wed, 12 Dec 2018 11:59:12 -0800
From: Tavis Ormandy <>
Subject: Re: Multiple telnet.c overflows

On Wed, Dec 12, 2018 at 11:15 AM Bob Friesenhahn
<> wrote:
> On Wed, 12 Dec 2018, Tavis Ormandy wrote:
> > It's not that environment handling is a non-issue, I've reported
> > dozens over the years, it's just that it requires a privilege
> > boundary. For example, setuid binaries are the classic example.
> Is a network connection between two machines not a 'privilege
> boundary'?  If the remote machine has the ability to subvert the
> accessing machine (e.g. by transmitting something which causes harm to
> the client) then that seems to qualify.

That would certainly qualify, but the attack your describing does not
seem relevant to this bug, no?


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