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_transferFromCaller is not compatible with USDT and similar tokens

🗓️ 03 Feb 2023 00:00:00Reported by Code4renaType 
code423n4
 code423n4🔗 github.com👁 11 Views

_transferFromCaller not compatible with USDT & similar tokens. ERC20 like USDT fail if not set to 0 before new allowance approval. Use increaseAllowance & decreaseAllowance over approve

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06 Feb 2023 00:00Current
6.9Medium risk
Vulners AI Score6.9
_transferfromcallerusdterc20increaseallowancedecreaseallowanceapprovalvulnerability
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