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/java/io/Serializable/unshared/Read.java

@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2000, 2010, 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.
+ */
+
+/*
+ * @bug 4311991
+ * @summary Test ObjectOutputStream.writeUnshared/readUnshared functionality.
+ */
+
+import java.io.*;
+
+class Bar implements Serializable {
+    private static final long serialVersionUID = 0L;
+    private static final ObjectStreamField[] serialPersistentFields =
+        new ObjectStreamField[] {
+            new ObjectStreamField("obj", Object.class, true)
+        };
+    Object obj;
+
+    Bar(Object obj) {
+        this.obj = obj;
+    }
+}
+
+public class Read {
+    public static void main(String[] args) throws Exception {
+        String str = "foo";
+        ByteArrayOutputStream bout = new ByteArrayOutputStream();
+        ObjectOutputStream oout = new ObjectOutputStream(bout);
+
+        oout.writeObject(str);
+        oout.writeObject(str);
+        oout.close();
+
+        byte[] buf = bout.toByteArray();
+        ByteArrayInputStream bin = new ByteArrayInputStream(buf);
+        ObjectInputStream oin = new ObjectInputStream(bin);
+        oin.readUnshared();
+        try {
+            oin.readObject();
+            throw new Error();
+        } catch (ObjectStreamException ex) {
+        }
+
+        bin = new ByteArrayInputStream(buf);
+        oin = new ObjectInputStream(bin);
+        oin.readUnshared();
+        try {
+            oin.readUnshared();
+            throw new Error();
+        } catch (ObjectStreamException ex) {
+        }
+
+        bin = new ByteArrayInputStream(buf);
+        oin = new ObjectInputStream(bin);
+        oin.readObject();
+        try {
+            oin.readUnshared();
+            throw new Error();
+        } catch (ObjectStreamException ex) {
+        }
+
+        // read in objects written by Write.main()
+        FileInputStream in = new FileInputStream("tmp.ser");
+        try {
+            oin = new ObjectInputStream(in);
+            oin.readObject();
+            try {
+                oin.readObject();
+                throw new Error();
+            } catch (ObjectStreamException ex) {
+            }
+        } finally {
+            in.close();
+        }
+
+        in = new FileInputStream("tmp.ser");
+        try {
+            oin = new ObjectInputStream(in);
+            oin.readObject();
+            try {
+                oin.readUnshared();
+                throw new Error();
+            } catch (ObjectStreamException ex) {
+            }
+        } finally {
+            in.close();
+        }
+    }
+}