Submission Details
Severity:
Division by 0 in updateExchangeRate
Summary
There is a possibility of a reverted transaction due to a /0 division.
Vulnerability Details
Although it would be handled by the EVM, if no tokens are minted before calling the updateExchangeRate function, the transaction will be reverted because division by zero is undefined.
Impact
A reverted transaction.
Tools Used
Manual Review.
Recommendations
Check the totalSupply value before trying to get a newExchangeRate, to ensure it is not zero. If so, leave exchangeRate unmodified.
Rewards breakdown
nSLOC
387This contest has a flat reward structure with the following payouts:
100 EXP
20 EXP
2 EXP
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