CVE-2022-35961 in Contracts
Résumé (Anglaise)
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.
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Responsable
GitHub, Inc.
Réserver
15/07/2022
Divulgation
15/08/2022
Statut
Confirmé
Entrées
VulDB provides additional information and datapoints for this CVE:
| ID | Vulnérabilité | CWE | Exp | Con | CVE |
|---|---|---|---|---|---|
| 206420 | OpenZeppelin Contracts Signature ECDSA.tryRecover élévation de privilèges | 354 | Non défini | Correctif officiel | CVE-2022-35961 |