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             AUSCERT External Security Bulletin Redistribution

                               ESB-2011.0152
            ZDI has reported an unpatched remote code execution
                   vulnerability in Microsoft PowerPoint
                              9 February 2011

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Microsoft Office Powerpoint 2007
Publisher:         Zero Day Initiative
Operating System:  Windows
                   Mac OS X
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution:        Mitigation

Original Bulletin: 
   http://www.zerodayinitiative.com/advisories/ZDI-11-044

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ZDI-11-044: Microsoft PowerPoint 2007 OfficeArt Atom Remote Code Execution
Vulnerability

http://www.zerodayinitiative.com/advisories/ZDI-11-044

February 7, 2011 - This vulnerability is being disclosed publicly without a patch
in accordance with the ZDI 180 day deadline. To view mitigations for this
vulnerability please see:
http://dvlabs.tippingpoint.com/blog/2011/02/07/zdi-disclosure-microsoft

- -- CVSS:
10, (AV:N/AC:L/Au:N/C:C/I:C/A:C)

- -- Affected Vendors:
Microsoft

- -- Affected Products:
Microsoft Office PowerPoint

- -- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Microsoft Office Powerpoint 2007. 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 with the way the application will parse
external objects within an Office Art container. When parsing this
object, the application will append an uninitialized object to a list.
When destroying this object during document close (WM_DESTROY), the
application will access a method that doesn't exist. This can lead to
code execution under the context of the application.

- -- Disclosure Timeline:
2010-07-20 - Vulnerability reported to vendor
2011-02-07 - Coordinated public release of advisory

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

- -- 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/

Follow the ZDI on Twitter:

    http://twitter.com/thezdi

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