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Secunia Research: Novell GroupWise Internet Agent "TZNAME" Parsing Vulnerability
From: Secunia Research <remove-vuln () secunia com>
Date: Tue, 27 Sep 2011 13:41:08 +0200

====================================================================== 

                     Secunia Research 27/09/2011

  - Novell GroupWise Internet Agent "TZNAME" Parsing Vulnerability -

====================================================================== 
Table of Contents

Affected Software....................................................1
Severity.............................................................2
Vendor's Description of Software.....................................3
Description of Vulnerability.........................................4
Solution.............................................................5
Time Table...........................................................6
Credits..............................................................7
References...........................................................8
About Secunia........................................................9
Verification........................................................10

====================================================================== 
1) Affected Software 

* Novell GroupWise 8.0.2 HP2

NOTE: Other versions may also be affected.

====================================================================== 
2) Severity 

Rating: Highly critical
Impact: System compromise
Where:  Remote

====================================================================== 
3) Vendor's Description of Software 

"Novell GroupWise 8 gives you a wide range of collaborative tools to 
create a truly plugged in work environment.".

Product Link:
http://www.novell.com/products/groupwise/

====================================================================== 
4) Description of Vulnerability

Secunia Research has discovered a vulnerability in Novell GroupWise,
which can be exploited by malicious people to compromise a vulnerable 
system.

The vulnerability is caused by an integer truncation error in 
NgwiCalVTimeZoneBody::ParseSelf() within gwwww1.dll when GroupWise 
Internet Agent parses "TZNAME" variables in VCALENDAR data. This can 
be exploited to cause a heap-based buffer overflow via a specially 
crafted e-mail containing an overly long "TZNAME" property value.

Successful exploitation may allow execution of arbitrary code.

====================================================================== 
5) Solution 

Update to version 8.02 Hot Patch 3.

====================================================================== 
6) Time Table 

04/03/2011 - Vendor notified.
04/03/2011 - Vendor response.
19/05/2011 - Vendor provides status update.
01/06/2011 - Vendor provides status update.
30/06/2011 - Vendor provides status update.
12/08/2011 - Vendor provides status update.
24/08/2011 - Vendor provides status update.
26/09/2011 - Vendor provides status update.
27/09/2011 - Public disclosure.

====================================================================== 
7) Credits 

Discovered by Carsten Eiram, Secunia Research.

====================================================================== 
8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned 
CVE-2011-0333 for the vulnerability.

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9) About Secunia

Secunia offers vulnerability management solutions to corporate
customers with verified and reliable vulnerability intelligence
relevant to their specific system configuration:

http://secunia.com/advisories/business_solutions/

Secunia also provides a publicly accessible and comprehensive advisory
database as a service to the security community and private 
individuals, who are interested in or concerned about IT-security.

http://secunia.com/advisories/

Secunia believes that it is important to support the community and to
do active vulnerability research in order to aid improving the 
security and reliability of software in general:

http://secunia.com/secunia_research/

Secunia regularly hires new skilled team members. Check the URL below
to see currently vacant positions:

http://secunia.com/corporate/jobs/

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/advisories/mailing_lists/

====================================================================== 
10) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2011-66/

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

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