bugtraq - ZDI-10-017: Microsoft Office PowerPoint Viewer TextBytesAtom Record Remote Code Execution Vulnerability

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Date: Tue, 9 Feb 2010 14:00:42 -0600
From: ZDI Disclosures <zdi-disclosures@...pingpoint.com>
To: "'full-disclosure@...ts.grok.org.uk'" <full-disclosure@...ts.grok.org.uk>,
	"'bugtraq@...urityfocus.com'" <bugtraq@...urityfocus.com>
Subject: ZDI-10-017: Microsoft Office PowerPoint Viewer TextBytesAtom Record
 Remote Code Execution Vulnerability

ZDI-10-017: Microsoft Office PowerPoint Viewer TextBytesAtom Record Remote Code Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-10-017
February 9, 2010

-- CVE ID:
CVE-2010-0033

-- Affected Vendors:
Microsoft

-- Affected Products:
Microsoft Office PowerPoint Viewer

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 9438. 
For further product information on the TippingPoint IPS, visit:

    http://www.tippingpoint.com

-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Microsoft Office PowerPoint Viewer. User
interaction is required to exploit this vulnerability in that the target
must open a malicious presentation.

The specific flaw exists in the handling of TextBytesAtom records
contained in a PPT file. Due to the lack of bounds checking on the size
argument an unchecked memcpy() copies user data from the file to the
stack, overflowing key exception structures. Exploitation of this
vulnerability can lead to remote compromise of the affected system under
the context of the currently logged in 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/MS10-004.mspx

-- Disclosure Timeline:
2009-10-21 - Vulnerability reported to vendor
2010-02-09 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * SkD

-- 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/