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Re: Buffer Overflow in ActivePerl ?


From: rich.sf () lclogic com
Date: Mon, 17 May 2004 17:58:57 -0700 (PDT)

Reproduced with 5.6.1/win95.

On Mon, 17 May 2004, Oliver () greyhat de wrote:

Date: Mon, 17 May 2004 22:23:56 +0200
From: "Oliver () greyhat de" <Oliver () greyhat de>
To: full-disclosure () lists netsys com
Cc: bugtraq () securityfocus 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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