CVE-2021-41153

Description

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.

Problem types

CWE-670: Always-Incorrect Control Flow Implementation

Product status

References

https://github.com/rust-blockchain/evm/security/advisories/GHSA-pvh2-pj76-4m96

https://github.com/rust-blockchain/evm/pull/67

cve.org CVE-2021-41153

nvd.nist.gov CVE-2021-41153

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