User will often overpay when adding liquidity

Lines of code Vulnerability details Impact One of the assets either baseTokens or fractionalTokens will likely be overpaid when the user calls Pair.add liquidity. Proof of Concept The Pair.add function takes baseTokenAmount, fractionalTokenAmount and minLpTokenAmount as inputs. The first two...

uToken's approve() Function is Susceptible to Frontrunning Attacks

Handle leastwood Vulnerability details Impact Order makers will call the approve function to facilitate transactions between order takers and makers. If a taker sees that a maker is seeking to reduce its order exposure by reducing Swivel.sol's allowance, a taker can frontrun this transaction to...