full-disclosure - ZDI-09-019: Microsoft Office PowerPoint OutlineTextRefAtom Parsing Memory Corruption Vulnerability

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Message-ID: <C62F3682.17252%zdi-disclosures@tippingpoint.com>
Date: Tue, 12 May 2009 14:21:54 -0500
From: ZDI Disclosures <zdi-disclosures@...pingpoint.com>
To: FD <full-disclosure@...ts.grok.org.uk>, bugtraq <bugtraq@...urityfocus.com>
Cc: ZDI Disclosures <zdi-disclosures@...pingpoint.com>
Subject: ZDI-09-019: Microsoft Office PowerPoint
 OutlineTextRefAtom Parsing Memory Corruption Vulnerability

ZDI-09-019: Microsoft Office PowerPoint OutlineTextRefAtom Parsing Memory
Corruption Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-09-019
May 12, 2009

-- CVE ID:
CVE-2009-0556

-- Affected Vendors:
Microsoft

-- Affected Products:
Microsoft Office PowerPoint

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 6944, 6965.
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. Exploitation
requires that the attacker coerce the target into opening a malicious
.PPT file.

The specific flaw exists in the parsing of the OutlineTextRefAtom
(3998).  By specifying an invalid "index" value during parsing memory
corruption occurs.  Proper exploitation can lead to remote code
execution under the credentials 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/MS09-017.mspx

-- Disclosure Timeline:
2008-04-07 - Vulnerability reported to vendor
2009-05-12 - Coordinated public release of advisory

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

-- About the Zero Day Initiative (ZDI):
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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:

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