Vulnerability Information
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Vulnerability Title
Vyper's ecrecover can return undefined data if signature does not verify
Vulnerability Description
Vyper is a Pythonic programming language that targets the Ethereum Virtual Machine (EVM). Prior to version 0.3.10, the ecrecover precompile does not fill the output buffer if the signature does not verify. However, the ecrecover builtin will still return whatever is at memory location 0. This means that the if the compiler has been convinced to write to the 0 memory location with specially crafted data (generally, this can happen with a hashmap access or immutable read) just before the ecrecover, a signature check might pass on an invalid signature. Version 0.3.10 contains a patch for this issue.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Vulnerability Type
未加检查的返回值
Vulnerability Title
Vyper 安全漏洞
Vulnerability Description
Vyper是EVM 的 Pythonic 智能合约语言。 Vyper 0.3.10之前版本存在安全漏洞，该漏洞源于允许ecrecover为无效签名返回未定义的数据。
CVSS Information
N/A
Vulnerability Type
N/A