CVE-2022-35961
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.
| Software | From | Fixed in |
|---|---|---|
| openzeppelin / contracts | 4.1.0 | 4.7.3 |
| openzeppelin / contracts_upgradeable | 4.1.0 | 4.7.3 |
@openzeppelin / contracts
|
4.1.0 | 4.7.3 |
|
@openzeppelin / contracts-upgradeable
|
4.1.0 | 4.7.3 |
- https://github.com/OpenZeppelin/openzeppelin-contracts/commit/d693d89d99325f395182e4f547dbf5ff8e5c3c87
- https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3610
- https://github.com/OpenZeppelin/openzeppelin-contracts/releases/tag/v4.7.3
- https://github.com/OpenZeppelin/openzeppelin-contracts/security/advisories/GHSA-4h98-2769-gh6h
Deep Security Visibility Without the Complexity
SynScan provides clear, real-time security insights so you can monitor your attack surface, spot risks early, and act fast—without extra complexity.
- No setup fees
- 5-min deployment
- Cancel anytime