permit() without updating nonce can result in replay attacks

Lines of code Vulnerability details Impact In PermitAndMulticall.sol the permit is called on the permitToken which allows you to sign the meta-transaction while someone else can submit it to the blockchain on your behalf. The problem is that a valid signature might be used several times in other...

lockWithPermit() function allows for replay attacks and signature malleability

Handle jayjonah8 Vulnerability details Impact In XDEFIDistribution.sol the lockWithPermit function calls permit on the XDEFI token. The problem with simply using permit alone for this is the message that is signed by the owner using the ECDSA algorithm. The message only contains the receiver...