Submission Details
Severity:
Integer Overflow/Underflow Risks
Summary
The contract lacks protection against arithmetic overflow and underflow, which could lead to balance manipulation.
Vulnerability Details
The contract does not use SafeMath to prevent arithmetic overflows and underflows.
Affected code:
uint256 balance = balances[msg.sender] - amount;
Impact
Arithmetic errors could lead to incorrect balances or unintended behavior
Tools Used
Slither
Echidna
Recommendations
Use Solidity's SafeMath library (for older versions) or checked arithmetic operators (>=0.8.0)
Rewards breakdown
nSLOC
211This contest has a flat reward structure with the following payouts:
100 EXP
20 EXP
2 EXP
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