November 29 - 4:45pm EST   Networking security hardware manufacturer SonicWALL recently announced that it has distributed defensive measures to users of it's Unified Threat Management technology, against zero-day vulnerability exploits found in QuickTime. Malicious websites are able to create a stack-based buffer overflow in Apple's media player, by providing a phony movie file that, when activated, executes a series of code that allows a users machine to be taken over. SonicWALL says that the problem lies within the "Content-Type" header field that is sent from the server, which is not properly verified by the client's QuickTime. Once the "Content-Type" field reaches a certain length, a Buffer ... [full story]