static BOOL update_send_pointer_system(rdpContext* context,
                                       const POINTER_SYSTEM_UPDATE* pointer_system)
{
	wStream* s;
	BYTE updateCode;
	rdpRdp* rdp = context->rdp;
	BOOL ret;
	s = fastpath_update_pdu_init(rdp->fastpath);

	if (!s)
		return FALSE;

	if (pointer_system->type == SYSPTR_NULL)
		updateCode = FASTPATH_UPDATETYPE_PTR_NULL;
	else
		updateCode = FASTPATH_UPDATETYPE_PTR_DEFAULT;

	ret = fastpath_send_update_pdu(rdp->fastpath, updateCode, s, FALSE);
	Stream_Release(s);
	return ret;
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.