bugtraq - buffer overflow in unace (linux extractor for .ace files)

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Message-ID: <1068406242.17914.15.camel@megahz>
Date: 09 Nov 2003 21:30:42 +0200
From: "Andreas Constantinides (MegaHz)" <megahz@...ahz.org>
To: bugtraq@...urityfocus.com
Subject: buffer overflow in unace (linux extractor for .ace files)


Hello,

I have discover a realy simple buffer overflow in unace(www.winace.com)
command.

normally if you put a wrong filename:
[root@...ahz root]# ./unace e aa.ace
 
UNACE v2.2     Copyright by ACE Compression Software       May  9 2002
10:59:42
                                                                           
Error: No such archive found:
 /root/aa.ace
[root@...ahz root]#
====================================================================================

the buffer overflow

[root@...ahz root]# ./unace e aaaaaa(a*600).ace
 
UNACE v2.2     Copyright by ACE Compression Software       May  9 2002
10:59:42
                                                                          Segmentation fault
[root@...ahz root]#

====================================================================================

winace was contacted about this.



MegaHz
www.megahz.org
www.cyhackportal.com