undefect. CWE-407 — 63 sites patched across 27 ecosystems

Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.

test/jdk/com/sun/net/httpserver/bugs/HeadTest.java

@@ -0,0 +1,131 @@
+/*
+ * Copyright (c) 2010, 2025, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/**
+ * @test
+ * @bug 6886723
+ * @library /test/lib
+ * @run main HeadTest
+ * @run main/othervm -Djava.net.preferIPv6Addresses=true HeadTest
+ * @summary light weight http server doesn't return correct status code for HEAD requests
+ */
+
+import java.net.InetAddress;
+import java.net.InetSocketAddress;
+import java.net.HttpURLConnection;
+import java.net.Proxy;
+import java.net.URL;
+import java.io.IOException;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import com.sun.net.httpserver.HttpContext;
+import com.sun.net.httpserver.HttpExchange;
+import com.sun.net.httpserver.HttpHandler;
+import com.sun.net.httpserver.HttpServer;
+import jdk.test.lib.net.URIBuilder;
+import static com.sun.net.httpserver.HttpExchange.RSPBODY_EMPTY;
+
+public class HeadTest {
+
+    public static void main(String[] args) throws Exception {
+        server();
+    }
+
+    static void server() throws Exception {
+        InetAddress loopback = InetAddress.getLoopbackAddress();
+        InetSocketAddress inetAddress = new InetSocketAddress(loopback, 0);
+        HttpServer server = HttpServer.create(inetAddress, 5);
+        try {
+            server.setExecutor(Executors.newFixedThreadPool(5));
+            HttpContext chunkedContext = server.createContext("/chunked");
+            chunkedContext.setHandler(new HttpHandler() {
+                @Override
+                public void handle(HttpExchange msg) {
+                    try {
+                        try {
+                            if (msg.getRequestMethod().equals("HEAD")) {
+                                msg.getRequestBody().close();
+                                msg.getResponseHeaders().add("Transfer-encoding", "chunked");
+                                msg.sendResponseHeaders(200, RSPBODY_EMPTY);
+                            }
+                        } catch(IOException ioe) {
+                            ioe.printStackTrace();
+                        }
+                    } finally {
+                        msg.close();
+                    }
+                }
+            });
+            HttpContext clContext = server.createContext("/content");
+            clContext.setHandler(new HttpHandler() {
+                @Override
+                public void handle(HttpExchange msg) {
+                    try {
+                        try {
+                            if (msg.getRequestMethod().equals("HEAD")) {
+                                msg.getRequestBody().close();
+                                msg.getResponseHeaders().add("Content-length", "1024");
+                                msg.sendResponseHeaders(200, RSPBODY_EMPTY);
+                            }
+                        } catch(IOException ioe) {
+                            ioe.printStackTrace();
+                        }
+                    } finally {
+                        msg.close();
+                    }
+                }
+            });
+            server.start();
+            String urlStr = URIBuilder.newBuilder()
+                .scheme("http")
+                .loopback()
+                .port(server.getAddress().getPort())
+                .path("/")
+                .build()
+                .toString();
+            System.out.println("Server is at " + urlStr);
+
+            // Run the chunked client
+            for(int i=0; i < 10; i++) {
+                runClient(urlStr + "chunked/");
+            }
+            // Run the content length client
+            for(int i=0; i < 10; i++) {
+                runClient(urlStr + "content/");
+            }
+        } finally {
+            // Stop the server
+            ((ExecutorService)server.getExecutor()).shutdown();
+            server.stop(0);
+        }
+    }
+
+    static void runClient(String urlStr) throws Exception {
+        HttpURLConnection conn = (HttpURLConnection) new URL(urlStr).openConnection(Proxy.NO_PROXY);
+        conn.setRequestMethod("HEAD");
+        int status = conn.getResponseCode();
+        if (status != 200) {
+            throw new RuntimeException("HEAD request doesn't return 200, but returns " + status);
+        }
+    }
+}