GSC will lose allowance if it tries to lower a spender's approval

Lines of code Vulnerability details Impact GSC will lose allowance if it tries to lower a spender's approval. Proof of Concept When gsc update a spender's approval, the gscAllowance will always decrease by amount: function gscApprove address token, address spender, uint256 amount external...

Approved spender can spend too many tokens

Handle cmichel Vulnerability details The approve function has not been overridden and therefore uses the internal shares, whereas transferFrom uses the rebalanced amount. Impact The approved spender may spend more tokens than desired. In fact, the approved amount that can be transferred keeps...