[Full-disclosure] Secunia Research: Where Is It unacev2.dll Buffer Overflow Vulnerability



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Secunia Research 09/05/2006

- Where Is It 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

* Where Is It version 3.73.501

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 Where Is It
(WhereIsIt), which can be exploited by malicious people to compromise
a user's system.

The vulnerability is caused due to a boundary error in 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

Update to version 3.73.505
http://www.whereisit-soft.com/download.html

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5) Time Table

04/05/2006 - Initial vendor notification.
09/05/2006 - Public disclosure. (No reply from vendor, but silently
fixed in latest version)

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6) Credits

Discovered by Secunia Research.

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7) References

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

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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/2006-28/advisory/

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

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