  exitStatus(chan, status) {
    if (!this._server)
      throw new Error('Server-only method called in client mode');

    // Does not consume window space
    let p = this._packetRW.write.allocStart;
    const packet = this._packetRW.write.alloc(1 + 4 + 4 + 11 + 1 + 4);

    packet[p] = MESSAGE.CHANNEL_REQUEST;

    writeUInt32BE(packet, chan, ++p);

    writeUInt32BE(packet, 11, p += 4);
    packet.utf8Write('exit-status', p += 4, 11);

    packet[p += 11] = 0;

    writeUInt32BE(packet, status, ++p);

    this._debug && this._debug(
      `Outbound: Sending CHANNEL_REQUEST (r:${chan}, exit-status: ${status})`
    );
    sendPacket(this, this._packetRW.write.finalize(packet));
  }
The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.