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Diffstat (limited to '')
-rw-r--r-- | tests/cve-2009-1416.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/tests/cve-2009-1416.c b/tests/cve-2009-1416.c new file mode 100644 index 0000000..56904f6 --- /dev/null +++ b/tests/cve-2009-1416.c @@ -0,0 +1,89 @@ +/* + * Copyright (C) 2009-2012 Free Software Foundation, Inc. + * + * 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 <string.h> +#include <utils.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; + + if (gnutls_fips140_mode_enabled()) { + /* Cannot generate a 512-bit DSA key */ + return 77; + } + + global_init(); + + 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; + } + + 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; +} |