  bool ApplyConfig() {
    DCHECK(context_->ui_task_runner()->BelongsToCurrentThread());

    if (!config_.GetString(kHostIdConfigPath, &host_id_)) {
      LOG(ERROR) << "host_id is not defined in the config.";
      return false;
    }

    if (!key_pair_.Load(config_)) {
      return false;
    }

    std::string host_secret_hash_string;
    if (!config_.GetString(kHostSecretHashConfigPath,
                           &host_secret_hash_string)) {
      host_secret_hash_string = "plain:";
    }

    if (!host_secret_hash_.Parse(host_secret_hash_string)) {
      LOG(ERROR) << "Invalid host_secret_hash.";
      return false;
    }

    if (!config_.GetString(kXmppLoginConfigPath, &xmpp_login_) ||
        !(config_.GetString(kXmppAuthTokenConfigPath, &xmpp_auth_token_) ||
          config_.GetString(kOAuthRefreshTokenConfigPath,
                            &oauth_refresh_token_))) {
      LOG(ERROR) << "XMPP credentials are not defined in the config.";
      return false;
    }

    config_.GetBoolean(kOAuthUseOfficialClientIdConfigPath,
                       &oauth_use_official_client_id_);

    if (!oauth_refresh_token_.empty()) {
      xmpp_auth_token_ = "";  // This will be set to the access token later.
      xmpp_auth_service_ = "oauth2";
    } else if (!config_.GetString(kXmppAuthServiceConfigPath,
                                  &xmpp_auth_service_)) {
      xmpp_auth_service_ = kChromotingTokenDefaultServiceName;
    }
    return true;
  }

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.