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Date: Tue, 18 May 2004 08:36:24 -0400
From: "steven.mcdonald" <steven.mcdonald@...ightbb.com>
To: <Oliver@...yhat.de>, <full-disclosure@...ts.netsys.com>
Cc: <bugtraq@...urityfocus.com>
Subject: (no subject)

Oliver,

Quickly testing the below string at the command line does crash perl.exe.  I have ActivePerl 5.8.0 Build 805 install on a Windows 2000 machine.

perl -e "$a="A" x 256; system($a)"


-----Original Message-----
From: Oliver@...yhat.de [mailto:Oliver@...yhat.de] 
Sent: Monday, May 17, 2004 4:24 PM
To: full-disclosure@...ts.netsys.com
Cc: bugtraq@...urityfocus.com
Subject: Buffer Overflow in ActivePerl ?

hi folks,

i played around with ActiveState's ActivePerl for Win32, and crashed 
Perl.exe with the following command:

perl -e "$a="A" x 256; system($a)"

I wonder if this bug isnt known?!? Because system() is a very common 
command....
Can anybody reproduce this?

I put together a little advisory on my website, including version 
information and a debugger output (Drwatson):

    http://www.oliverkarow.de/research/ActivePerlSystemBOF.txt


PS:  Due to travel activity, i will not be able to respond to mails 
within the next 8 days!

Regards,

Oliver

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