Secunia Research: OpenOffice.org Word Document Table Parsing Integer Underflow

[Secunia Research <remove-vuln@xxxxxxxxxxx>]

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                     Secunia Research 01/09/2009

  - OpenOffice.org Word Document Table Parsing Integer Underflow -

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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

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1) Affected Software 

* OpenOffice.org 3.1

NOTE: Other versions may also be affected.

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2) Severity 

Rating: Highly critical
Impact: System access
Where:  From remote

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3) Vendor's Description of Software 

"OpenOffice.org 3 is the leading open-source office software suite for
word processing, spreadsheets, presentations, graphics, databases and
more.".

Product Link:
http://openoffice.org/

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4) Description of Vulnerability

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

The vulnerability is caused due to an integer underflow error when 
parsing certain records in the document table. This can be exploited 
to cause a heap-based buffer overflow via a specially crafted file.

Successful exploitation may allow execution of arbitrary code.

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5) Solution 

Update to version 3.1.1.

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6) Time Table 

14/05/2009 - Vendor notified.
14/05/2009 - Vendor response.
01/09/2009 - Public disclosure.

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7) Credits 

Discovered by Dyon Balding, Secunia Research.

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8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned 
CVE-2009-0200 for the vulnerability.

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9) About Secunia

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10) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2009-26/

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

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