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

[Andreas Constantinides]

Hello,

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

normally if you put a wrong filename:
[root@megahz 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@megahz root]#
================================================== ==================================

the buffer overflow

[root@megahz root]# ./unace e aaaaaa(a*600).ace

UNACE v2.2 Copyright by ACE Compression Software May 9 2002
10:59:42
Segmentation fault
[root@megahz root]#

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

winace was contacted about this.



MegaHz
www.megahz.org
www.cyhackportal.com