Re-Entrancy Security Vulnerability

Bet.sol

    ...
    function payout() public payable {

      checkPermissions(msg.sender);
     
     if (game.originator.status == STATUS_TIE && game.taker.status == STATUS_TIE) {
       game.originator.addr.transfer(game.betAmount);
       game.taker.addr.transfer(game.betAmount);
     } else {
        if (game.originator.status == STATUS_WINNER) {
          game.originator.addr.transfer(game.betAmount*2);
        } else if (game.taker.status == STATUS_WINNER) {
          game.taker.addr.transfer(game.betAmount*2);
        } else {
          game.originator.addr.transfer(game.betAmount);
          game.taker.addr.transfer(game.betAmount);
        }
     }

     resetGame();
     getBetOutcome();
   }
   ...