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Novell GroupWise Internet Agent TZNAME Parsing

Novell GroupWise Internet Agent TZNAME Parsing
Posted Sep 27, 2011
Authored by Carsten Eiram | Site secunia.com

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.

tags | advisory, overflow, arbitrary
advisories | CVE-2011-0333
SHA-256 | 098e587acb10c0083b88ba844ed01cfbf1ec6d61bdeb69e7e6a4f2b9e4413126

Novell GroupWise Internet Agent TZNAME Parsing

Change Mirror Download
====================================================================== 

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.

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