Heap-based buffer overflow in the qtdemux_parse_samples function in gst/qtdemux/qtdemux.c in GStreamer Good Plug-ins (aka gst-plugins-good) 0.10.9 through 0.10.11, and GStreamer Plug-ins (aka gstreamer-plugins) 0.8.5, might allow remote attackers to execute arbitrary code via crafted Time-to-sample (aka stts) atom data in a malformed QuickTime media .mov file.