First Flight #2: Puppy Raffle

Summary

Vulnerability Details

In the enterRaffle function, users can add player addresses to the storage array called "players." However, when the array reaches a certain length, the function may become unavailable due to running out of gas. Additionally, the function checks for duplicate addresses using a nested loop, which consumes a significant amount of gas and increases the likelihood of the function failing.

Impact

high

Tools Used

manual review

Recommendations

Use the upper boundary of the players length to limit the gas cost.