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Microsoft Office uninitialized object pointer vulnerability

Vulnerability Note VU#909022

Original Release Date: 2011-09-13 | Last Revised: 2012-03-28


Microsoft Office fails to properly handle certain Word documents, which may allow a remote, unauthenticated attacker to execute arbitrary code.


Code in the MSO.dll component of Microsoft Office 2003, 2007, and 2010 fails to properly initialize an object pointer when loading binary (Word 97-2003 format) Word documents.


By convincing a user to open a specially crafted Office document, an attacker may be able to execute arbitrary code.


Apply an update

This issue is addressed in Microsoft Security Bulletin MS11-073.

Block Office 2003 and earlier documents from untrusted sources

Microsoft Security Bulletin MS11-073 details how to use the Microsoft Office File Block policy to prevent specific file format types from being opened in Microsoft Office.

Vendor Information

Affected   Unknown   Unaffected

Microsoft Corporation

Notified:  November 30, 2010 Updated:  September 13, 2011

Statement Date:   August 29, 2011



Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

Please see Microsoft Security Bulletin MS11-073 for additional details.

Vendor References

CVSS Metrics

Group Score Vector
Base 9.0 AV:N/AC:M/Au:N/C:C/I:C/A:P
Temporal 7.0 E:POC/RL:OF/RC:C
Environmental 7 CDP:ND/TD:ND/CR:ND/IR:ND/AR:ND



This issue was reported by David Warren.

This document was written by David Warren.

Other Information

CVE IDs: CVE-2011-1982
Severity Metric: 1.62
Date Public: 2011-09-13
Date First Published: 2011-09-13
Date Last Updated: 2012-03-28 15:13 UTC
Document Revision: 24

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