CVE-2008-5013

Mozilla Firefox 2.x antes de 2.0.0.18 y SeaMonkey 1.x antes de 1.1.13 no comprueba correctamente cuando se ha descargado dinámicamente el módulo Flash, lo que permite a atacantes remotos ejecutar código de su elección mediante un archivo SWF manipulado que "se descarga dinámicamente de una función Javascript externa", lo que dispara un acceso a una dirección de memoria que ha expirado.

This vulnerability allows remote attackers to execute code on vulnerable installations of Mozilla Firefox with Adobe's Flash Player. User interaction is required in that a user must visit a malicious web site.
The specific flaw exists due to a failure to check whether the Flash module has been properly dynamically unloaded. If an SWF file dynamically unloads itself via an outside JavaScript function, the browser will return to an address no longer mapped to the Flash module. Exploitation of this vulnerability can result in arbitrary code execution under the context of the currently logged in user.