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Secunia Research: Eazel unacev2.dll Buffer Overflow Vulnerability

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                    Secunia Research 17/05/2006

         - Eazel unacev2.dll 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 

* Eazel version 1.0.

Other 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 Eazel, which
can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error in ztvunacev2.dll
(UNACEV2.DLL) when extracting an ACE archive containing a file with an
overly long filename. This can be exploited to cause a stack-based
buffer overflow when a user extracts a specially crafted ACE archive.

The vulnerability is related to:
SA16479

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4) Solution 

Do not extract untrusted ACE archives.

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5) Time Table 

03/05/2006 - Initial vendor notification.
16/05/2006 - Second vendor notification.
17/05/2006 - Public disclosure. (No reply from vendor)

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6) Credits 

Discovered by Secunia Research.

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7) References

SA16479:
http://secunia.com/advisories/16479/

The Common Vulnerabilities and Exposures (CVE) project has assigned
CVE-2005-2856 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/2006-33/advisory/

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

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