Advisory Details

December 21st, 2012

Microsoft Office Word PAPX Section Remote Code Execution Vulnerability

CVE ID	CVE-2012-0182
CVSS SCORE	7.5, AV:N/AC:L/Au:N/C:P/I:P/A:P
AFFECTED VENDORS	Microsoft
AFFECTED PRODUCTS	Office Word
TREND MICRO CUSTOMER PROTECTION	Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID ['11933']. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Office Word. 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 how the application parses a PAPX FKP sections. When parsing a PAPX FKP section, the application will store a calculation. However, when repairing a damaged document, the application will explicitly trust this calculation in a loop that is used to index into an array of objects. This will allow for an out-of-bounds access of an object which can lead to code execution under the context of the application.
ADDITIONAL DETAILS	Microsoft has issued an update to correct this vulnerability. More details can be found at: http://technet.microsoft.com/en-us/security/bulletin/ms12-064
DISCLOSURE TIMELINE	2011-05-25 - Vulnerability reported to vendor 2012-12-21 - Coordinated public release of advisory
CREDIT	Anonymous

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