CVE-2022-35961 Information

Description

OpenZeppelin Contracts is a library for secure smart contract development. The functions ECDSA.recover and ECDSA.tryRecover are vulnerable to a kind of signature malleability due to accepting EIP-2098 compact signatures in addition to the traditional 65 byte signature format. This is only an issue for the functions that take a single bytes argument and not the functions that take r v s or r vs as separate arguments. The potentially affected contracts are those that implement signature reuse or replay protection by marking the signature itself as used rather than the signed message or a nonce included in it. A user may take a signature that has already been submitted submit it again in a different form and bypass this protection. The issue has been patched in 4.7.3.

Reference

https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3610 https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-4h98-2769-gh6h https://github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.7.3