Secunia Research: IBM Lotus Notes wosr.dll Data Block Parsing Buffer Overflow

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

                     Secunia Research 28/07/2010

   - IBM Lotus Notes wosr.dll Data Block Parsing Buffer Overflow -

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

* Lotus Notes 8.5

NOTE: Other versions may also be affected.

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

Rating: Highly critical
Impact: System compromise
Where:  Remote

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

"Easy to use, integrated desktop client that brings you the people, 
business applications, and information you need from across the 
enterprise and the Internet to help you get your work done fast.".

Product Link:
http://ibm.com/software/lotus/products/notes/

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

Secunia Research has discovered a vulnerability in Lotus Notes, which 
can be exploited by malicious people to compromise a user's system.

The vulnerability is caused by a boundary error the WordPerfect 5.x 
reader (wosr.dll) when parsing data blocks and can be exploited to 
cause a heap-based buffer overflow via a specially crafted file.

Successful exploitation may allow execution of arbitrary code.

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

Apply available patch or Fix Pack.

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

16/03/2010 - Vendor notified.
17/03/2010 - Vendor response.
16/04/2010 - Status update requested.
18/04/2010 - Vendor provides status update.
24/05/2010 - Status update requested.
14/06/2010 - Vendor asks about coordinated disclosure date.
15/06/2010 - Vendor provided with expected disclosure date.
28/07/2010 - Public disclosure.

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

Discovered by Dyon Balding, Secunia Research.

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

The Common Vulnerabilities and Exposures (CVE) project has assigned 
CVE-2010-0135 for the vulnerabilities.

====================================================================== 
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/2010-32/

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

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