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/cert/CertificateFactory/SlowStream.java

@@ -0,0 +1,94 @@
+/*
+ * 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 6813340
+ * @summary X509Factory should not depend on is.available()==0
+ */
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.PipedInputStream;
+import java.io.PipedOutputStream;
+import java.security.cert.CertificateFactory;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+public class SlowStream {
+    public static void main(String[] args) throws Exception {
+        final var outputStream = new PipedOutputStream();
+        final var inputStream = new PipedInputStream(outputStream);
+
+        final var failed = new AtomicBoolean(false);
+
+        final var writer = new Thread(() -> {
+            try {
+                for (int i = 0; i < 5; i++) {
+                    try (final var fin = new FileInputStream(new File(
+                            new File(System.getProperty("test.src", "."),
+                                    "openssl"),
+                            "pem"))) {
+
+                        fin.transferTo(outputStream);
+
+                        Thread.sleep(2000);
+                    }
+                }
+                outputStream.close();
+            } catch (final Exception e) {
+                System.out.println("Writer Thread Error: ");
+                e.printStackTrace(System.out);
+                failed.set(true);
+            }
+        });
+
+        final var reader = new Thread(() -> {
+            try {
+                final var factory = CertificateFactory.getInstance("X.509");
+                final var numOfCerts = factory.generateCertificates(inputStream).size();
+                if (numOfCerts != 5) {
+                    throw new Exception(
+                            String.format("Not all certs read. %d found 5 expected", numOfCerts)
+                    );
+                }
+                inputStream.close();
+            } catch (final Exception e) {
+                System.out.println("Reader Thread Error: ");
+                e.printStackTrace(System.out);
+                failed.set(true);
+            }
+        });
+
+        writer.start();
+        reader.start();
+
+        writer.join();
+        reader.join();
+
+        if (failed.get()) {
+            throw new RuntimeException(
+                    "The test failed, please check the reader and writer threads output"
+            );
+        }
+    }
+}