UniswapV2PriceOracle#refreshedAssetPerBaseInUQ() will revert when pair cumulative prices underflow

Lines of code Vulnerability details function refreshedAssetPerBaseInUQaddress asset external override returns uint uint price0Cumulative, uint price1Cumulative, uint32 blockTimestamp = addresspair.currentCumulativePrices; uint32 timeElapsed = blockTimestamp - blockTimestampLast; if timeElapsed =...