GStreamer is a library for constructing graphs of media-handling components. A null pointer dereference vulnerability has been discovered in the gstmatroskademuxaddwvpkheader function within matroska-demux.c. This function does not properly check the validity of the stream->codecpriv pointer in the following code. If stream->codecpriv is NULL, the call to GSTREADUINT16LE will attempt to dereference a null pointer, leading to a crash of the application. This vulnerability is fixed in 1.24.10.