CVE-2022-35961 (GCVE-0-2022-35961)
Vulnerability from cvelistv5
Published
2022-08-14 00:05
Modified
2025-04-23 17:50
CWE
  • CWE-354 - Improper Validation of Integrity Check Value
Summary
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.
Impacted products
Vendor Product Version
OpenZeppelin openzeppelin-contracts Version: >= 4.1.0, < 4.7.3
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