Add self-tests for security problems.

1 files changed, 88 insertions, 0 deletions

diff --git a/tests/cve-2009-1416.c b/tests/cve-2009-1416.c
new file mode 100644
index 0000000000..b637344949
--- /dev/null
+++ b/tests/cve-2009-1416.c
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2009 Free Software Foundation
+ *
+ * Author: Simon Josefsson
+ *
+ * This file is part of GNUTLS.
+ *
+ * GNUTLS is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GNUTLS 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNUTLS; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+/*
+ * Small code to reproduce the CVE-2009-1416 bad DSA key problem.
+ *
+ * Build it using:
+ *
+ *  gcc -o cve-2009-1416 cve-2009-1416.c -lgnutls
+ *
+ * If your gnutls library is OK then running it will print 'success!'.
+ *
+ * If your gnutls library is buggy then running it will print 'buggy'.
+ *
+ */
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdlib.h>
+
+#include <gcrypt.h>
+#include <gnutls/gnutls.h>
+#include <gnutls/x509.h>
+
+int
+main (void)
+{
+  gnutls_x509_privkey_t key;
+  gnutls_datum_t p, q, g, y, x;
+  int ret;
+
+  gnutls_global_init ();
+  gcry_control (GCRYCTL_ENABLE_QUICK_RANDOM, 0);
+
+  ret = gnutls_x509_privkey_init (&key);
+  if (ret < 0)
+    return 1;
+
+  ret = gnutls_x509_privkey_generate (key, GNUTLS_PK_DSA, 512, 0);
+  if (ret < 0)
+    return 1;
+
+  ret = gnutls_x509_privkey_export_dsa_raw (key, &p, &q, &g, &y, &x);
+  if (ret < 0)
+    return 1;
+
+  if (q.size == 3 && memcmp (q.data, "\x01\x00\x01", 3) == 0)
+    {
+      printf ("buggy\n");
+      return 1;
+    }
+  else
+    printf ("success!\n");
+
+  gnutls_free (p.data);
+  gnutls_free (q.data);
+  gnutls_free (g.data);
+  gnutls_free (y.data);
+  gnutls_free (x.data);
+
+  gnutls_x509_privkey_deinit (key);
+  gnutls_global_deinit ();
+
+  return 0;
+}