Advisory Details

December 9th, 2009

Adobe Flash Player ActionScript Exception Handler Integer Overflow Vulnerability

ZDI-09-093
ZDI-CAN-392

CVE ID CVE-2009-3799
CVSS SCORE
AFFECTED VENDORS Adobe
AFFECTED PRODUCTS Flash Player
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 8457. For further product information on the TippingPoint IPS: 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.

ADDITIONAL DETAILS 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 Damian Put
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