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ERC20 Incorrect check on returnedAddress in permit() results in unlimited approval of zero address

🗓️ 14 Jul 2022 00:00:00Reported by Code4renaType 
code423n4
 code423n4
🔗 github.com👁 11 Views

ERC20 Incorrect check on returnedAddress in permit() results in unlimited approval of zero address. Vulnerability impact allows unauthorized draining of the protocol by permitting zero address as spender

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