UpdatesDescription: This security update resolves several privately reported vulnerabilities in Microsoft Windows GDI+. These vulnerabilities could allow remote code execution if a user viewed a specially crafted image file using affected software or browsed a Web site that contains specially crafted content. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. The security update addresses the vulnerabilities by introducing proper data validations within GDI+ when rendering WMF images, modifying the way that GDI+ manages a heap buffer when reading a PNG file, modifying the way that GDI+ allocates a buffer used when reading TIFF files, This update modifies the way that GDI+ manages buffers when certain .NET API calls are made, modifying the way that GDI+ calculates the required size of a buffer while parsing a PNG image, , and modifying the way that Microsoft Office opens specially crafted files.

Update type: Critical

Release date: October 13, 2009

Applies to: All versions

Knowledge base: http://support.microsoft.com/kb/957488

Download link: 32-bit | 64-bit
Comments:Here are the specifics on the vulnerabilities covered by this update:

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