[guru] [remove-vuln@secunia.com: Secunia Research: BitZipper unacev2.dll Buffer Overflow Vulnerability]
DATE: Tue, 08 Aug 2006 01:16:49 +0200
Buffer overflow hibát találtak a BitZipper archíváló program unacev2.dll
függvénygyüjteményben. A hiba rosszindulatú ACE archívval használható ki,
amely túlságosan hosszú nevü file-okat tartalmaz.
Javítás egyelőre nincs. Nem megbízható archívok meg nem nyitásával lehet
védekezni.
----- Forwarded message from Secunia Research <remove-vuln@secunia.com> -----
Date: Mon, 17 Jul 2006 09:08:32 +0200
From: Secunia Research <remove-vuln@secunia.com>
To: vuln@secunia.com
Subject: Secunia Research: BitZipper unacev2.dll Buffer Overflow
Vulnerability
Cc: bugtraq@securityfocus.com
X-Mailer: Evolution 2.0.2 (2.0.2-27)
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Secunia Research 17/07/2006
- BitZipper 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
* BitZipper version 4.1 SR-1.
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 BitZipper, 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
Do not extract untrusted archives.
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5) Time Table
02/05/2006 - Initial vendor notification.
16/05/2006 - Second vendor notification.
16/05/2006 - Initial vendor reply.
17/07/2006 - Public disclosure
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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/2006-46/advisory/
Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/
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----- End forwarded message -----