Search This Blog

Thursday, September 29, 2005

[NT] 7-Zip ARJ Archive Buffer Overflow

The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
- - promotion

The SecuriTeam alerts list - Free, Accurate, Independent.

Get your security news from a reliable source.
http://www.securiteam.com/mailinglist.html

- - - - - - - - -

7-Zip ARJ Archive Buffer Overflow
------------------------------------------------------------------------

SUMMARY

" <http://www.7-zip.org/> 7-Zip is a file archiver with high compression
ratio."

7-Zip vulnerable to a buffer overflow that allow attackers to execute
arbitrary code by sending the victim a malicious .ARJ archive file.

DETAILS

Vulnerable Systems:
* 7-Zip version 3.13
* 7-Zip version 4.23
* 7-Zip version 4.26 BETA

Immune Systems:
* 7-Zip version 4.27 BETA

The vulnerability is caused due to a boundary error when handling an ARJ
block that is larger than 2600 bytes. This can be exploited to cause a
stack-based buffer overflow when a specially crafted ARJ file is opened.

Successful exploitation allows arbitrary code execution.

Disclosure Timeline:
05/09/2005 - Initial vendor notification
05/09/2005 - Initial vendor reply
21/09/2005 - Vendor released fixed version
23/09/2005 - Public disclosure

ADDITIONAL INFORMATION

The information has been provided by <mailto:vuln@secunia.com> Secunia
Research .
The original article can be found at:
<http://secunia.com/advisories/16664/>
http://secunia.com/advisories/16664/

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

This bulletin is sent to members of the SecuriTeam mailing list.
To unsubscribe from the list, send mail with an empty subject line and body to: list-unsubscribe@securiteam.com
In order to subscribe to the mailing list, simply forward this email to: list-subscribe@securiteam.com

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

DISCLAIMER:
The information in this bulletin is provided "AS IS" without warranty of any kind.
In no event shall we be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages.

No comments: