Use-after-free vulnerability in Microsoft Office XP SP3, Office 2003 SP3, Office 2007 SP2, Office 2004 and 2008 for Mac, and Open XML File Format Converter for Mac allows remote attackers to execute arbitrary code via malformed shape data in the Office drawing file format, aka "Microsoft Office Graphic Object Dereferencing Vulnerability."
Vulnerabilidad uso después de liberación en Microsoft Excel 2007 permite a atacantes remotos ejecutar código de su elección a través de datos de formas con formato incorrecto en el formato de archivo de dibujo de Office.
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Excel 2007. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the application's support for the office drawing file format. When parsing shape data within a particular container, the application will add a reference to an object to a linked list. If an error occurs during parsing, the application will free each element yet fail to remove the reference. Afterward, the application will use this reference. This can lead to code execution under the context of the application.
