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Revision c6eb1cbd1e2afbf0e0e9170cb9b5df1ff25bfd14 authored by Matt Caswell on 19 May 2015, 15:03:02 UTC, committed by Matt Caswell on 22 May 2015, 22:43:07 UTC
Fix off-by-one in BN_rand
If BN_rand is called with |bits| set to 1 and |top| set to 1 then a 1 byte
buffer overflow can occur. There are no such instances within the OpenSSL at
the moment.

Thanks to Mateusz Kocielski (LogicalTrust), Marek Kroemeke, Filip Palian for
discovering and reporting this issue.

Reviewed-by: Kurt Roeckx <kurt@openssl.org>
1 parent 1a9499c
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  • e_atalla_err.c
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e_atalla_err.c
/* e_atalla_err.c */
/* ====================================================================
 * Copyright (c) 1999-2005 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    openssl-core@OpenSSL.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */

/*
 * NOTE: this file was auto generated by the mkerr.pl script: any changes
 * made to it will be overwritten when the script next updates this file,
 * only reason strings will be preserved.
 */

#include <stdio.h>
#include <openssl/err.h>
#include "e_atalla_err.h"

/* BEGIN ERROR CODES */
#ifndef OPENSSL_NO_ERR

# define ERR_FUNC(func) ERR_PACK(0,func,0)
# define ERR_REASON(reason) ERR_PACK(0,0,reason)

static ERR_STRING_DATA ATALLA_str_functs[] = {
    {ERR_FUNC(ATALLA_F_ATALLA_CTRL), "ATALLA_CTRL"},
    {ERR_FUNC(ATALLA_F_ATALLA_FINISH), "ATALLA_FINISH"},
    {ERR_FUNC(ATALLA_F_ATALLA_INIT), "ATALLA_INIT"},
    {ERR_FUNC(ATALLA_F_ATALLA_MOD_EXP), "ATALLA_MOD_EXP"},
    {ERR_FUNC(ATALLA_F_ATALLA_RSA_MOD_EXP), "ATALLA_RSA_MOD_EXP"},
    {0, NULL}
};

static ERR_STRING_DATA ATALLA_str_reasons[] = {
    {ERR_REASON(ATALLA_R_ALREADY_LOADED), "already loaded"},
    {ERR_REASON(ATALLA_R_BN_CTX_FULL), "bn ctx full"},
    {ERR_REASON(ATALLA_R_BN_EXPAND_FAIL), "bn expand fail"},
    {ERR_REASON(ATALLA_R_CTRL_COMMAND_NOT_IMPLEMENTED),
     "ctrl command not implemented"},
    {ERR_REASON(ATALLA_R_MISSING_KEY_COMPONENTS), "missing key components"},
    {ERR_REASON(ATALLA_R_NOT_LOADED), "not loaded"},
    {ERR_REASON(ATALLA_R_REQUEST_FAILED), "request failed"},
    {ERR_REASON(ATALLA_R_UNIT_FAILURE), "unit failure"},
    {0, NULL}
};

#endif

#ifdef ATALLA_LIB_NAME
static ERR_STRING_DATA ATALLA_lib_name[] = {
    {0, ATALLA_LIB_NAME},
    {0, NULL}
};
#endif

static int ATALLA_lib_error_code = 0;
static int ATALLA_error_init = 1;

static void ERR_load_ATALLA_strings(void)
{
    if (ATALLA_lib_error_code == 0)
        ATALLA_lib_error_code = ERR_get_next_error_library();

    if (ATALLA_error_init) {
        ATALLA_error_init = 0;
#ifndef OPENSSL_NO_ERR
        ERR_load_strings(ATALLA_lib_error_code, ATALLA_str_functs);
        ERR_load_strings(ATALLA_lib_error_code, ATALLA_str_reasons);
#endif

#ifdef ATALLA_LIB_NAME
        ATALLA_lib_name->error = ERR_PACK(ATALLA_lib_error_code, 0, 0);
        ERR_load_strings(0, ATALLA_lib_name);
#endif
    }
}

static void ERR_unload_ATALLA_strings(void)
{
    if (ATALLA_error_init == 0) {
#ifndef OPENSSL_NO_ERR
        ERR_unload_strings(ATALLA_lib_error_code, ATALLA_str_functs);
        ERR_unload_strings(ATALLA_lib_error_code, ATALLA_str_reasons);
#endif

#ifdef ATALLA_LIB_NAME
        ERR_unload_strings(0, ATALLA_lib_name);
#endif
        ATALLA_error_init = 1;
    }
}

static void ERR_ATALLA_error(int function, int reason, char *file, int line)
{
    if (ATALLA_lib_error_code == 0)
        ATALLA_lib_error_code = ERR_get_next_error_library();
    ERR_PUT_error(ATALLA_lib_error_code, function, reason, file, line);
}
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