Submission Details
Severity:
The function variance will revert due to subtraction underflow.
Summary
The function variance will revert due to subtraction underflow.
Vulnerability Details
In the function variance , the mean value will be calculated based on the data first, and then the average variance will be calculated. However, when a value is less than the mean value, the function will revert.
Impact
Core logic such as validate and finalizeValidation will be broken.
Tools Used
VSCode
Recommendations
Using int256 instead uint256:
int256 diff = data[i] - mean;
Updates
Lead Judging Commences
inallhonesty 8 months ago
Submission Judgement Published Assigned finding tags:
Underflow in computing variance
Prize pool breakdown
Total prize
21,000 USDC
nSLOC
1,03420 USDC / LOC
20,000 USDC
1,000 USDC
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