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/security/KeyPairGenerator/FinalizeHalf.java

@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2016, 2019, 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 8163896 8223003
+ * @summary Finalizing one key of a KeyPair invalidates the other key
+ */
+
+import java.security.Key;
+import java.security.KeyPair;
+import java.security.KeyPairGenerator;
+import java.security.NoSuchAlgorithmException;
+import java.security.Provider;
+import java.security.ProviderException;
+import java.security.Security;
+import java.util.function.Consumer;
+import java.util.ArrayList;
+import java.util.List;
+
+public class FinalizeHalf {
+
+    static int failures = 0;
+
+    public static void main(String[] args) throws Throwable {
+        List<Consumer<Key>> methods = new ArrayList<>();
+        methods.add((Key k) -> k.getEncoded());
+        methods.add((Key k) -> k.toString());
+
+        for (String algo : new String[] {"DiffieHellman", "DSA", "RSA"}) {
+            for (Provider provider : Security.getProviders()) {
+                for (boolean priv : new boolean[] {true, false}) {
+                    for (Consumer<Key> method : methods) {
+                        test(algo, provider, priv, method);
+                    }
+                }
+            }
+        }
+
+        if (failures > 0) {
+            throw new RuntimeException(failures + " test(s) failed.");
+        }
+    }
+
+    static void test(String algo, Provider provider, boolean priv,
+            Consumer<Key> method) throws Exception {
+        KeyPairGenerator generator;
+        try {
+            generator = KeyPairGenerator.getInstance(algo, provider);
+        } catch (NoSuchAlgorithmException nsae) {
+            return;
+        }
+
+        System.out.println("Checking " + provider.getName() + ", " + algo);
+
+        KeyPair pair = generator.generateKeyPair();
+        Key key = priv ? pair.getPrivate() : pair.getPublic();
+
+        pair = null;
+        for (int i = 0; i < 32; ++i) {
+            System.gc();
+        }
+
+        try {
+            method.accept(key);
+        } catch (ProviderException pe) {
+            failures++;
+        }
+    }
+}