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Arrow  Topic :

TZipBuilder ZIP File Handling Buffer OverflowVulnerability


Arrow  SecurityAlert : 853
Arrow  CVE : CVE-2006-2161
Arrow  SecurityRisk : Medium  Security Risk Medium  (About)
Arrow  Remote Exploit : Yes
Arrow  Local Exploit : No
Arrow  Exploit Available : No
Arrow  Credit : Secunia Research (remove-vuln secunia com)
Arrow  Published : 09.05.2006

Arrow  Affected Software : TZipBuilder 1.79.03.01



Arrow  Advisory Content :  

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

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/

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





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