Submission Details
Severity:
Chainlink latestRoundData validation
Summary
Oracle price could be zero.
Vulnerability Details
function staleCheckLatestRoundData(AggregatorV3Interface priceFeed)
public
view
returns (uint80, int256, uint256, uint256, uint80)
{
(uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound) =
priceFeed.latestRoundData();
uint256 secondsSince = block.timestamp - updatedAt;
if (secondsSince > TIMEOUT) revert OracleLib__StalePrice();
return (roundId, answer, startedAt, updatedAt, answeredInRound);
}
Impact
The logic of staleCheckLatestRoundData allow to return a zero Price, it must be checked in order to avoid errors.
Prize pool breakdown
Total prize
15,000 USDC
nSLOC
23664 USDC / LOC
14,000 USDC
1,000 USDC
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