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/*
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* Copyright (C) 2009-2012 Free Software Foundation, Inc.
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*
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* Author: Simon Josefsson
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*
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* This file is part of GnuTLS.
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*
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* GnuTLS is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* GnuTLS is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GnuTLS; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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/*
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* Small code to reproduce the CVE-2009-1415 double-free problem.
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*
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* Build it using:
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*
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* gcc -o cve-2009-1415 cve-2009-1415.c -lgnutls
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*
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* If your gnutls library is OK then running it will just print 'success!'.
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*
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* If your gnutls library is buggy, then running it will crash like this:
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*
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* ** glibc detected *** ./cve-2009-1415: munmap_chunk(): invalid pointer: 0xb7f80a9c ***
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* ======= Backtrace: =========
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* ...
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*/
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#include <stdio.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <utils.h>
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#include <gnutls/gnutls.h>
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#include <gnutls/x509.h>
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#include <gnutls/abstract.h>
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static char dsa_cert[] =
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"-----BEGIN CERTIFICATE-----\n"
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"MIIDbzCCAtqgAwIBAgIERiYdRTALBgkqhkiG9w0BAQUwGTEXMBUGA1UEAxMOR251\n"
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"VExTIHRlc3QgQ0EwHhcNMDcwNDE4MTMyOTQxWhcNMDgwNDE3MTMyOTQxWjA3MRsw\n"
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"GQYDVQQKExJHbnVUTFMgdGVzdCBzZXJ2ZXIxGDAWBgNVBAMTD3Rlc3QuZ251dGxz\n"
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"Lm9yZzCCAbQwggEpBgcqhkjOOAQBMIIBHAKBgLmE9VqBvhoNxYpzjwybL5u2DkvD\n"
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"dBp/ZK2d8yjFoEe8m1dW8ZfVfjcD6fJM9OOLfzCjXS+7oaI3wuo1jx+xX6aiXwHx\n"
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"IzYr5E8vLd2d1TqmOa96UXzSJY6XdM8exXtLdkOBBx8GFLhuWBLhkOI3b9Ib7GjF\n"
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"WOLmMOBqXixjeOwHAhSfVoxIZC/+jap6bZbbBF0W7wilcQKBgGIGfuRcdgi3Rhpd\n"
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"15fUKiH7HzHJ0vT6Odgn0Zv8J12nCqca/FPBL0PCN8iFfz1Mq12BMvsdXh5UERYg\n"
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"xoBa2YybQ/Dda6D0w/KKnDnSHHsP7/ook4/SoSLr3OCKi60oDs/vCYXpNr2LelDV\n"
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"e/clDWxgEcTvcJDP1hvru47GPjqXA4GEAAKBgA+Kh1fy0cLcrN9Liw+Luin34QPk\n"
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"VfqymAfW/RKxgLz1urRQ1H+gDkPnn8l4EV/l5Awsa2qkNdy9VOVgNpox0YpZbmsc\n"
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"ur0uuut8h+/ayN2h66SD5out+vqOW9c3yDI+lsI+9EPafZECD7e8+O+P90EAXpbf\n"
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"DwiW3Oqy6QaCr9Ivo4GTMIGQMAwGA1UdEwEB/wQCMAAwGgYDVR0RBBMwEYIPdGVz\n"
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"dC5nbnV0bHMub3JnMBMGA1UdJQQMMAoGCCsGAQUFBwMBMA8GA1UdDwEB/wQFAwMH\n"
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"gAAwHQYDVR0OBBYEFL/su87Y6HtwVuzz0SuS1tSZClvzMB8GA1UdIwQYMBaAFOk8\n"
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"HPutkm7mBqRWLKLhwFMnyPKVMAsGCSqGSIb3DQEBBQOBgQBCsrnfD1xzh8/Eih1f\n"
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"x+M0lPoX1Re5L2ElHI6DJpHYOBPwf9glwxnet2+avzgUQDUFwUSxOhodpyeaACXD\n"
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"o0gGVpcH8sOBTQ+aTdM37hGkPxoXjtIkR/LgG5nP2H2JRd5TkW8l13JdM4MJFB4W\n"
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"QcDzQ8REwidsfh9uKAluk1c/KQ==\n" "-----END CERTIFICATE-----\n";
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const gnutls_datum_t dsa_cert_dat = {
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(void *) dsa_cert, sizeof(dsa_cert)
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};
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int main(void)
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{
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gnutls_x509_crt_t crt;
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gnutls_pubkey_t pubkey;
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gnutls_datum_t data = { (void *) "foo", 3 };
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gnutls_datum_t sig = { (void *) "bar", 3 };
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int ret;
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global_init();
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ret = gnutls_x509_crt_init(&crt;;
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if (ret < 0)
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return 1;
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ret = gnutls_pubkey_init(&pubkey);
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if (ret < 0)
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return 1;
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ret =
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gnutls_x509_crt_import(crt, &dsa_cert_dat,
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GNUTLS_X509_FMT_PEM);
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if (ret < 0)
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return 1;
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ret = gnutls_pubkey_import_x509(pubkey, crt, 0);
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if (ret < 0)
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return 1;
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ret = gnutls_pubkey_verify_data2(pubkey, GNUTLS_SIGN_DSA_SHA1, 0, &data, &sig);
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if (ret < 0 && ret != GNUTLS_E_PK_SIG_VERIFY_FAILED)
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return 1;
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//printf ("success!\n");
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gnutls_x509_crt_deinit(crt);
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gnutls_pubkey_deinit(pubkey);
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gnutls_global_deinit();
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return 0;
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}
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