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Nmap Development: RE: 4.49RC7 NSE Loop?

RE: 4.49RC7 NSE Loop?

From: Thomas Buchanan <TBuchanan_at_thecompassgrp.net>
Date: Tue, 11 Dec 2007 15:40:03 -0600

> -----Original Message-----
> From: nmap-dev-bounces_at_insecure.org
> [mailto:nmap-dev-bounces_at_insecure.org] On Behalf Of komseh
> Sent: Tuesday, December 11, 2007 3:10 PM
> To: nmap-dev_at_insecure.org
> Subject: Re: 4.49RC7 NSE Loop?
>
> I forgot to mention that i've reproduced the same error on
> two different
> machines.
>
> On Dec 11, 2007 3:07 PM, komseh <komseh_at_gmail.com> wrote:
>
>> I think someone reported a similar bug to this recently, but I
couldn't
>> fix my issue using their methods.
>>
>> Scanning this group of hosts together with either T2,T3, or T4 all
produce
>> the same output infinitely and the scan never ends.
>>
>> However, nmap completes the scan without a problem if each host is
scanned
>> individually.
>>
>> nmap -T4 -v -sS -sV -O -n --script=all --script-trace -iL test.list
>>
>

I don't know if it's the same issue you're facing, but as I was trying
to track down a NSE looping issue I was seeing last week, I noticed that
a few of the scripts that I wrote don't properly close sockets on error
paths. This was leading to resource starvation with available sockets,
which the garbage collection fix that Stoiko and Diman checked in
corrected (at least in my testing). Anyway, here's a patch that
corrects that behavior in those scripts. Maybe it will help.

Thomas

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Received on Dec 11 2007
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