Secunia Research: WinHKI unacev2.dll Buffer Overflow Vulnerability
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Secunia Research 01/05/2006
- WinHKI 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
* WinHKI version 1.66 and 1.67.
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 WinHKI, 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
Update to version 1.68.
http://www.winhki.com/en/download.htm
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5) Time Table
30/03/2006 - Initial vendor notification.
01/04/2006 - Initial vendor reply.
01/05/2006 - Public disclosure.
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6) Credits
Discovered by Tan Chew Keong, 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/2006-25/advisory/
Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/
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