Polkadot Frontier contains missing `check_inherent` for `note_min_gas_price_target` inflates gas price

Polkadot Frontier is an Ethereum and EVM compatibility layer for Polkadot and Substrate. The extrinsic note_min_gas_price_target is an inherent extrinsic, meaning only the block producer can call it. To ensure correctness, the ProvideInherent trait should be implemented for each inherent, which includes the check_inherent call. This allows other nodes to verify if the input (in this case, the target value) is correct. However, prior to commit a754b3d, the check_inherent function has not been implemented for note_min_gas_price_target. This lets the block producer set the target value without verification. The target is then used to set the MinGasPrice, which has an upper and lower bound defined in the on_initialize hook. The block producer can set the target to the upper bound. Which also increases the upper and lower bounds for the next block. Over time, this could result in continuously raising the gas price, making contract execution too expensive and ineffective for users. An attacker could use this flaw to manipulate the gas price, potentially leading to significantly inflated transaction fees. Such manipulation could render contract execution prohibitively expensive for users, effectively resulting in a denial-of-service condition for the network. This is fixed in version a754b3d.

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数值计算不正确

Polkadot Frontier 代码问题漏洞

Polkadot Frontier是Polkadot EVM开源的一个提供以太坊虚拟机兼容层的应用程序。 Polkadot Frontier a754b3d之前版本存在代码问题漏洞，该漏洞源于未实现note_min_gas_price_target的check_inherent函数，可能导致Gas价格操纵。

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