[nsp-sec] Potential TCP / IP vulnerabilities announcedmidOctober - Outpost24 interview

[Florian Weimer]

* David Freedman:

> Yes, well, I could sit there spoofing TOOBIG messages
> and make the node send smaller (but more) packets 
> driving its CPU up, surely?

Linux limits the discovered path MTU to something around 550 bytes by
default.  I don't think this has caused any problems, and it limits
the overhead you can introduce.

(Obviously, I totally agree that this issue is worth fixing if your
stack goes down to arbitrary PMTU values.)

-- 
Florian Weimer                <fweimer at bfk.de>
BFK edv-consulting GmbH       http://www.bfk.de/
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