Messages in this thread | | | Date | Fri, 1 May 1998 11:07:12 -0700 (PDT) | From | Gerhard Mack <> | Subject | Re: 2.1.99 sends ULTRIX death packets |
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On Fri, 1 May 1998, David S. Miller wrote:
> Date: Fri, 1 May 1998 17:30:27 +0200 > From: Pavel Machek <pavel@atrey.karlin.mff.cuni.cz> > > we want to know what linux's feature does it (so we have nice post > to bugtraq) and > > we do not want to be *that* evil. > > We do want to be that evil if the bug is what I think it is, that > Ultrix crashes when it encounters unknown TCP options, such as the > rfc1323 and SACK stuff we implement these days. > > The one thing which can stop wide deployment of these necessary > features is biting the bullet and by default disabling them, I refuse > to do that in Linux 2.2's TCP.
It would be useless anyhow, this is a rather large list and this just screams "exploit me". Fixing it from linux would only make the bug less visable on the short term.
> The answer (again this is assuming that Ultrix is puking on the TCP > option additions we have now, it may well not) is to leave it on by > default, and tell people who have this problem to turn it off on their > Linux machines via the sysctl mechanism. This will make everyone > happy. > > We maybe should give Ultrix _some_ chance to fix bug before linuxes > 2.1.99+ will be so common that their machines will be more down > than up. > > Is Ultrix even maintained these days? Just curious... > > In any event I'm looking forward to tcpdump output from people who see > this, so we can nail down what is happening.
Wonder how long unlill I see this as an alert im my email.
Gerhard
-- Gerhard Mack irc admin centurion.starchat.net
gmack@imag.net innerfire@starchat.net
As a computer I find your faith in technology amusing.
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