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ZDI-09-042: Adobe Reader U3D RHAdobeMeta Stack Overflow Vulnerability
From: ZDI Disclosures <zdi-disclosures () tippingpoint com>
Date: Wed, 10 Jun 2009 11:04:27 -0500

ZDI-09-042: Adobe Reader U3D RHAdobeMeta Stack Overflow Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-09-042
June 10, 2009

-- CVE ID:
CVE-2009-1855

-- Affected Vendors:
Adobe

-- Affected Products:
Adobe Acrobat

-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Adobe Acrobat and Adobe Reader. User
interaction is required to exploit this vulnerability in that the target
must visit a malicious web address or open a malicious file.

The specific flaw exists when parsing malformed U3D model files
contained in a PDF. When a specially crafted extension block of a model
is processed, insufficient bounds checking is done before a call to
wcsncpy(). Because of this a stack overflow can occur resulting in
reliable code execution. Proper exploitation of this vulnerability will
result in system compromise under the credentials of the currently
logged in user.

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

http://www.adobe.com/support/security/bulletins/apsb09-07.html

-- Disclosure Timeline:
2009-02-24 - Vulnerability reported to vendor
2009-06-10 - 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/


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