Re: nmap crashed

[David Fifield <david () bamsoftware com>]

On Thu, Oct 16, 2008 at 08:36:30PM +0000, Brandon Enright wrote:
> > It's very strange, when i do -d3 it starts scanning, and things look 
> > normal.  When I do it without -d, it immediately crashes.
> > It also only seems to crash when I am connected via PPTP.  if I run
> > with -d(n) it completes but does not find the hosts on the other side
> > of the tunnel,
> > instead it says only:
> >
> > Got ICMP response to a packet which was not TCP, UDP, or ICMP
> >
> > Got ICMP response to a packet which was not TCP, UDP, or ICMP
> >
> > Got ICMP response to a packet which was not TCP, UDP, or ICMP
> >
> > Got ICMP response to a packet which was not TCP, UDP, or ICMP
>
> This sounds like the same bug I reported in
> http://seclists.org/nmap-dev/2008/q4/0130.html
>
> I wasn't testing with PPTP links but the rest of the behavior sounds
> the same.  I haven't had time to invest in tracking down which SVN
> commit caused the problem.  The issue shows up in 4.76 and the latest
> SVN but I haven't tested 4.75 or 4.68.  If you're willing to run 4.75
> or 4.68 and report your results back it will probably help once I (or
> someone else) sits down and tries to track the problem down.

Thanks both of you for your help in finding this. I believe I have fixed
it in 10710. If I'm right, I introduced the problem in r9244. A test
condition (the one around the printing of "Got ICMP response to a packet
which was not TCP, UDP, or ICMP") wrongly had && o.debugging in the
condition itself, rather than in the block of code subordinate to the
condition. Let me know if it works.

David Fifield

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