Nintendo: [3DS][StreetPass] Heap Overflow in Swapnote parser leads to userland StreetPass RCE

Affected Systems - System: Nintendo 3DS - Version: = 11.13 - Region: ALL Description When parsing TLRF chunks in message files the application calls memcpy using user provided sizes to copy controlled data over a fixed-size buffer. Thus one can overflow heap chunks which is enough to get code...