Vulnerability Information
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Vulnerability Title
ECDSA signature malleability in OpenZeppelin Contracts
Vulnerability 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.
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:L
Vulnerability Type
完整性检查值验证不恰当
Vulnerability Title
OpenZeppelin 安全漏洞
Vulnerability Description
OpenZeppelin是一个应用软件。一个安全区块链应用的标准。 OpenZeppelin Contracts 4.1.0及之前版本存在安全漏洞，该漏洞源于函数ECDSA.recover和容易受到一种签名延展性的影响。
CVSS Information
N/A
Vulnerability Type
N/A