full-disclosure - Cygwin Bash Buffer Overflow (Cosmin Stejerean)

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Date: Sun May 29 12:51:50 2005
From: cstejere at cs.depaul.edu (Stejerean, Cosmin)
Subject: Cygwin Bash Buffer Overflow (Cosmin Stejerean)

> Cygwin Bash Buffer Overflow
> Author: Rodrigo Gutierrez <rodrigo@...ellicomp.cl>
> Affected: Versions of bash distributed by the cygwin project
> vendor url: http://www.cygwin.com
> Type: Local

> Background.
> Cygwin is a Linux-like environment for Windows. GNU BASH is the GNU
> project's UNIX shell. It replaces the standard UNIX Bourne and Korn 
> shells.

> Description

> I think that cygwin people are cool, but Full Disclosure is a life
style,
> this is all you get guys, 8 megs.

> PoC

> you@...win:~ /usr/bin/bash `perl -e "print 'a'x8388600"`


Which version of bash for Cygwin? I tried your PoC on the latest version
of Cygwin and everything was fine.




Cosmin Stejerean