Adobe Flash Player ActionScript Exception Handler Integer Overflow Vulnerability

2009-12-09T00:00:00
ID ZDI-09-093
Type zdi
Reporter Damian Put
Modified 2009-11-09T00:00:00

Description

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.