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Zero Day Initiative Advisory 08-086

Zero Day Initiative Advisory 08-086
Posted Dec 9, 2008
Authored by Tipping Point | Site zerodayinitiative.com

Zero Day Initiative Advisory 08-086 - This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Office Word. Exploitation requires that the attacker coerce the target into opening a malicious .DOC file. The specific flaw exists when processing a malformed table property within a Microsoft Word document. User-supplied data is copied into a stack-based buffer using a size that is calculated from the contents of the property. Exploitation can result in arbitrary code execution under the context of the current user.

tags | advisory, remote, arbitrary, code execution
advisories | CVE-2008-4837
SHA-256 | f9764e5f351f435e4a8b86a0afa405425f780aa19ce2223fce8c81e0df4b132b

Zero Day Initiative Advisory 08-086

Change Mirror Download
ZDI-08-086: Microsoft Office Word Document Table Property Stack Overflow 
Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-08-086
December 9, 2008

-- CVE ID:
CVE-2008-4837

-- Affected Vendors:
Microsoft

-- Affected Products:
Microsoft Office Word

-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Microsoft Office Word. Exploitation requires
that the attacker coerce the target into opening a malicious .DOC file.

The specific flaw exists when processing a malformed table property
within a Microsoft Word document. User-supplied data is copied into a
stack-based buffer using a size that is calculated from the contents of
the property. Exploitation can result in arbitrary code execution under
the context of the current user.

-- Vendor Response:
Microsoft has issued an update to correct this vulnerability. More
details can be found at:

http://www.microsoft.com/technet/security/bulletin/MS08-072.mspx

-- Disclosure Timeline:
2008-08-19 - Vulnerability reported to vendor
2008-12-09 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
* wushi&ling of team509

-- About the Zero Day Initiative (ZDI):
Established by TippingPoint, The Zero Day Initiative (ZDI) represents
a best-of-breed model for rewarding security researchers for responsibly
disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

http://www.zerodayinitiative.com

The ZDI is unique in how the acquired vulnerability information is
used. TippingPoint does not re-sell the vulnerability details or any
exploit code. Instead, upon notifying the affected product vendor,
TippingPoint provides its customers with zero day protection through
its intrusion prevention technology. Explicit details regarding the
specifics of the vulnerability are not exposed to any parties until
an official vendor patch is publicly available. Furthermore, with the
altruistic aim of helping to secure a broader user base, TippingPoint
provides this vulnerability information confidentially to security
vendors (including competitors) who have a vulnerability protection or
mitigation product.

Our vulnerability disclosure policy is available online at:

http://www.zerodayinitiative.com/advisories/disclosure_policy/

CONFIDENTIALITY NOTICE: This e-mail message, including any attachments,
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