bugtraq - Secunia Research: TZipBuilder ZIP File Handling Buffer Overflow Vulnerability

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Message-ID: <1147094021.23473.145.camel@ts2.intnet>
Date: Mon, 08 May 2006 15:13:41 +0200
From: Secunia Research <remove-vuln@...unia.com>
To: vuln@...unia.com
Cc: bugtraq@...urityfocus.com
Subject: Secunia Research: TZipBuilder ZIP File Handling Buffer Overflow
	Vulnerability


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

                    Secunia Research 08/05/2006

   - TZipBuilder ZIP File Handling Buffer Overflow Vulnerability -

====================================================================== 
Table of Contents

Affected Software....................................................1
Severity.............................................................2
Description of Vulnerability.........................................3
Solution.............................................................4
Time Table...........................................................5
Credits..............................................................6
References...........................................................7
About Secunia........................................................8
Verification.........................................................9

====================================================================== 
1) Affected Software 

* TZipBuilder 1.79.03.01. 

Prior versions may also be affected.

====================================================================== 
2) Severity 

Rating: Moderately Critical
Impact: System Access
Where:  Remote

====================================================================== 
3) Description of Vulnerability

Secunia Research has discovered a vulnerability in TZipBuilder, which
can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error when listing the
contents of a ZIP archive that contains a file with an overly long
filename. This can be exploited to cause a stack-based buffer overflow
when a specially crafted ZIP archive is opened.

Successful exploitation allows execution of arbitrary code with the
privileges of an application that uses the library.

====================================================================== 
4) Solution 

Update to version 1.79.04.00.
http://www.drehoeksw.net/ZipBuild2.html

====================================================================== 
5) Time Table 

03/05/2006 - Initial vendor notification.
03/05/2006 - Initial vendor reply.
08/05/2006 - Public disclosure.

====================================================================== 
6) Credits 

Discovered by Tan Chew Keong, Secunia Research.

====================================================================== 
7) References

The Common Vulnerabilities and Exposures (CVE) project has assigned
CVE-2006-2161 for the vulnerability.

====================================================================== 
8) About Secunia 

Secunia collects, validates, assesses, and writes advisories regarding 
all the latest software vulnerabilities disclosed to the public. These 
advisories are gathered in a publicly available database at the 
Secunia website: 

http://secunia.com/

Secunia offers services to our customers enabling them to receive all 
relevant vulnerability information to their specific system 
configuration. 

Secunia offers a FREE mailing list called Secunia Security Advisories: 

http://secunia.com/secunia_security_advisories/

====================================================================== 
9) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2006-26/advisory/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

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