ssl/ssl_rsa.c:863: error: BUFFER_OVERRUN_L3
  Offset added: [48, +oo] (⇐ [0, +oo] + 48) Size: [1, +oo] by call to `SSL_CTX_add_server_custom_ext`.
Showing all 10 steps of the trace


ssl/ssl_rsa.c:843:1: Parameter `ctx->cert->srv_ext.meths_count`
841.    * the included extensions.
842.    */
843. > static int serverinfo_process_buffer(const unsigned char *serverinfo,
844.                                        size_t serverinfo_length, SSL_CTX *ctx)
845.   {

ssl/ssl_rsa.c:863:21: Call
861.           /* Register callbacks for extensions */
862.           ext_type = (serverinfo[0] << 8) + serverinfo[1];
863.           if (ctx && !SSL_CTX_add_server_custom_ext(ctx, ext_type,
                           ^
864.                                                     serverinfo_srv_add_cb,
865.                                                     NULL, NULL,

ssl/t1_ext.c:286:1: Parameter `ctx->cert->srv_ext.meths_count`
  284.   }
  285.   
  286. > int SSL_CTX_add_server_custom_ext(SSL_CTX *ctx, unsigned int ext_type,
  287.                                     custom_ext_add_cb add_cb,
  288.                                     custom_ext_free_cb free_cb,

ssl/t1_ext.c:293:12: Call
  291.                                     void *parse_arg)
  292.   {
  293.       return custom_ext_meth_add(&ctx->cert->srv_ext, ext_type,
                    ^
  294.                                  add_cb, free_cb, add_arg, parse_cb, parse_arg);
  295.   }

ssl/t1_ext.c:203:1: <Length trace>
201.   
202.   /* Set callbacks for a custom extension. */
203. > static int custom_ext_meth_add(custom_ext_methods *exts,
204.                                  unsigned int ext_type,
205.                                  custom_ext_add_cb add_cb,

ssl/t1_ext.c:203:1: Parameter `exts->meths_count`
    201.   
    202.   /* Set callbacks for a custom extension. */
    203. > static int custom_ext_meth_add(custom_ext_methods *exts,
    204.                                  unsigned int ext_type,
    205.                                  custom_ext_add_cb add_cb,

ssl/t1_ext.c:228:9: Call
    226.           return 0;
    227.       /* Search for duplicate */
    228.       if (custom_ext_find(exts, ext_type))
                   ^
    229.           return 0;
    230.       exts->meths = OPENSSL_realloc(exts->meths,

ssl/t1_ext.c:64:1: Parameter `exts->meths_count`
      62.   
      63.   /* Find a custom extension from the list. */
      64. > static custom_ext_method *custom_ext_find(const custom_ext_methods *exts,
      65.                                             unsigned int ext_type)
      66.   {

ssl/t1_ext.c:239:5: Assignment
    237.       }
    238.   
    239.       meth = exts->meths + exts->meths_count;
               ^
    240.       memset(meth, 0, sizeof(*meth));
    241.       meth->parse_cb = parse_cb;

ssl/t1_ext.c:240:5: Array access: Offset added: [48, +oo] (⇐ [0, +oo] + 48) Size: [1, +oo] by call to `SSL_CTX_add_server_custom_ext` 
    238.   
    239.       meth = exts->meths + exts->meths_count;
    240.       memset(meth, 0, sizeof(*meth));
               ^
    241.       meth->parse_cb = parse_cb;
    242.       meth->add_cb = add_cb;

static int custom_ext_meth_add(custom_ext_methods *exts,
                               unsigned int ext_type,
                               custom_ext_add_cb add_cb,
                               custom_ext_free_cb free_cb,
                               void *add_arg,
                               custom_ext_parse_cb parse_cb, void *parse_arg)
{
    custom_ext_method *meth;
    if (!add_cb && free_cb)
        return 0;
    if (SSL_extension_supported(ext_type) &&
        ext_type != TLSEXT_TYPE_signed_certificate_timestamp)
        return 0;
    if (ext_type > 0xffff)
        return 0;
    if (custom_ext_find(exts, ext_type))
        return 0;
    exts->meths = OPENSSL_realloc(exts->meths,
                                  (exts->meths_count +
                                   1) * sizeof(custom_ext_method));
    if (!exts->meths) {
        exts->meths_count = 0;
        return 0;
    }
    meth = exts->meths + exts->meths_count;
    memset(meth, 0, sizeof(*meth));
    meth->parse_cb = parse_cb;
    meth->add_cb = add_cb;
    meth->free_cb = free_cb;
    meth->ext_type = ext_type;
    meth->add_arg = add_arg;
    meth->parse_arg = parse_arg;
    exts->meths_count++;
    return 1;
}
['static int serverinfo_process_buffer(const unsigned char *serverinfo,\n                                     size_t serverinfo_length, SSL_CTX *ctx)\n{\n    if (serverinfo == NULL || serverinfo_length == 0)\n        return 0;\n    for (;;) {\n        unsigned int ext_type = 0;\n        size_t len = 0;\n        if (serverinfo_length == 0)\n            return 1;\n        if (serverinfo_length < 2)\n            return 0;\n        ext_type = (serverinfo[0] << 8) + serverinfo[1];\n        if (ctx && !SSL_CTX_add_server_custom_ext(ctx, ext_type,\n                                                  serverinfo_srv_add_cb,\n                                                  NULL, NULL,\n                                                  serverinfo_srv_parse_cb,\n                                                  NULL))\n            return 0;\n        serverinfo += 2;\n        serverinfo_length -= 2;\n        if (serverinfo_length < 2)\n            return 0;\n        len = (serverinfo[0] << 8) + serverinfo[1];\n        serverinfo += 2;\n        serverinfo_length -= 2;\n        if (len > serverinfo_length)\n            return 0;\n        serverinfo += len;\n        serverinfo_length -= len;\n    }\n}', 'int SSL_CTX_add_server_custom_ext(SSL_CTX *ctx, unsigned int ext_type,\n                                  custom_ext_add_cb add_cb,\n                                  custom_ext_free_cb free_cb,\n                                  void *add_arg,\n                                  custom_ext_parse_cb parse_cb,\n                                  void *parse_arg)\n{\n    return custom_ext_meth_add(&ctx->cert->srv_ext, ext_type,\n                               add_cb, free_cb, add_arg, parse_cb, parse_arg);\n}', 'static int custom_ext_meth_add(custom_ext_methods *exts,\n                               unsigned int ext_type,\n                               custom_ext_add_cb add_cb,\n                               custom_ext_free_cb free_cb,\n                               void *add_arg,\n                               custom_ext_parse_cb parse_cb, void *parse_arg)\n{\n    custom_ext_method *meth;\n    if (!add_cb && free_cb)\n        return 0;\n    if (SSL_extension_supported(ext_type) &&\n        ext_type != TLSEXT_TYPE_signed_certificate_timestamp)\n        return 0;\n    if (ext_type > 0xffff)\n        return 0;\n    if (custom_ext_find(exts, ext_type))\n        return 0;\n    exts->meths = OPENSSL_realloc(exts->meths,\n                                  (exts->meths_count +\n                                   1) * sizeof(custom_ext_method));\n    if (!exts->meths) {\n        exts->meths_count = 0;\n        return 0;\n    }\n    meth = exts->meths + exts->meths_count;\n    memset(meth, 0, sizeof(*meth));\n    meth->parse_cb = parse_cb;\n    meth->add_cb = add_cb;\n    meth->free_cb = free_cb;\n    meth->ext_type = ext_type;\n    meth->add_arg = add_arg;\n    meth->parse_arg = parse_arg;\n    exts->meths_count++;\n    return 1;\n}', 'static custom_ext_method *custom_ext_find(const custom_ext_methods *exts,\n                                          unsigned int ext_type)\n{\n    size_t i;\n    custom_ext_method *meth = exts->meths;\n    for (i = 0; i < exts->meths_count; i++, meth++) {\n        if (ext_type == meth->ext_type)\n            return meth;\n    }\n    return NULL;\n}']