Microsoft Office Publisher File Conversion TextBox Processing Buffer Overflow Vulnerability

April 13th, 2010

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Office. Exploitation requires user interaction in that a victim must open a malicious PUB file.

The specific flaw exists within the code responsible for converting files from the Publisher 97 format. While processing a TextBox item, several programming errors can be triggered allowing a maliciously created publisher file to execute arbitrary code under the context of the user opening the file.

Additional Details

Microsoft has issued an update to correct this vulnerability. More details can be found at:
http://www.microsoft.com/technet/security/bulletin/ms10-023.mspx

Disclosure Timeline

  • 2009-11-06 - Vulnerability reported to vendor
  • 2010-04-13 - Coordinated public release of advisory

Credit

Lionel d'Hauenens (www.laboskopia.com)

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