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Secunia Research: Abakt ZIP File Handling Buffer Overflow Vulnerability

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                    Secunia Research 15/05/2006

      - Abakt ZIP File Handling Buffer Overflow Vulnerability -

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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

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1) Affected Software 

* Abakt version 0.9.2 and 0.9.3-beta1

Prior versions may also be affected.

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2) Severity 

Rating: Moderately Critical
Impact: System Access
Where:  Remote

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3) Description of Vulnerability

Secunia Research has discovered a vulnerability in Abakt, 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. This can be exploited to cause a
stack-based buffer overflow when a malicious ZIP archive containing
a file with an overly long filename is opened.

The vulnerability is related to:
SA19945

Successful exploitation allows execution of arbitrary code but
requires that the user is e.g. tricked into opening a malicious ZIP
archive from within the "Restore Zip Archive" functionality.

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4) Solution 

The vulnerability has been fixed in 0.9.3-RC1.

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5) Time Table 

12/05/2006 - Initial vendor notification.
15/05/2006 - Initial vendor reply.
15/05/2006 - Public disclosure.

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6) Credits 

Discovered by Tan Chew Keong, Secunia Research.

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7) References

SA19945:
http://secunia.com/advisories/19945/

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

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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/

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9) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2006-31/advisory/

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

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