CVE-2021-41153

Date: October 18, 2021

The evm crate is a pure Rust implementation of Ethereum Virtual Machine. In "evm" crate "< 0.31.0", "JUMPI" opcode's condition is checked after the destination validity check. However, according to Geth and OpenEthereum, the condition check should happen before the destination validity check. This is a high severity security advisory if you use "evm" crate for Ethereum mainnet. In this case, you should update your library dependency immediately to on or after "0.31.0". This is a low severity security advisory if you use "evm" crate in Frontier or in a standalone blockchain, because there's no security exploit possible with this advisory. It is not recommended to update to on or after "0.31.0" until all the normal chain upgrade preparations have been done. If you use Frontier or other "pallet-evm" based Substrate blockchain, please ensure to update your "spec_version" before updating this. For other blockchains, please make sure to follow a hard-fork process before you update this.

Language: RUST