ZDI-09-093: Adobe Flash Player ActionScript Exception Handler Integer Overflow Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-09-093
December 9, 2009

-- CVE ID:
CVE-2009-3799

-- Affected Vendors:
Adobe

-- Affected Products:
Adobe Flash Player

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 8457. 
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    http://www.tippingpoint.com

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

The specific flaw exists in the generation of ActionScript exception
handlers. In Verifier::parseExceptionHandlers(), a large value for
exception_count will result in an integer overflow condition leading to
a memory corruption which can be leveraged to execute arbitrary code
under the context 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/apsb09-19.html

-- Disclosure Timeline:
2008-10-15 - Vulnerability reported to vendor
2009-12-09 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Damian Put

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