[plug] local DoS with ping -R

[Christian]

On Mon, 13 Dec 1999, Anthony J. Breeds-Taurima wrote:

> > So can you ping -s 65468 -R ?
> > (WARNING, this will kill the machine if you're running 2.0)
> 
> I can quite happily
> ping -s 65468
> 
> If I add the Record Route option (-R) I get a nice message saying:
> ~$ ping -s 65468 -R www
> Error: packet size 65468 is too large. Maximum is 65467
> 
> So this ping util wont let you build a dangerous ping packet, in this instance
> anyway.

Are you running a 2.0 kernel?  The bug only seems to apply to these
kernels (as per Matt's original forward from BUGTRAQ) and if you're
running Red Hat 6.x then you'll have a 2.2 I believe...

Regards,

Christian.

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"Those who do not understand Unix are condemned to reinvent it, poorly."
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