Vulnerability Information
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Vulnerability Title
Shallow copy bug in geth
Vulnerability Description
Go Ethereum, or "Geth", is the official Golang implementation of the Ethereum protocol. This is a Consensus vulnerability in Geth before version 1.9.17 which can be used to cause a chain-split where vulnerable nodes reject the canonical chain. Geth's pre-compiled dataCopy (at 0x00...04) contract did a shallow copy on invocation. An attacker could deploy a contract that writes X to an EVM memory region R, then calls 0x00..04 with R as an argument, then overwrites R to Y, and finally invokes the RETURNDATACOPY opcode. When this contract is invoked, a consensus-compliant node would push X on the EVM stack, whereas Geth would push Y. This is fixed in version 1.9.17.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Vulnerability Type
数值计算不正确
Vulnerability Title
Ethereum Go-ethereum 安全漏洞
Vulnerability Description
Ethereum Go-ethereum是Ethereum社区的一个用Go语言实现以太坊协议的代码库。 Ethereum Go-ethereum 1.9.18 之前版本存在安全漏洞，攻击者可利用该漏洞可以部署一个契约，将X写入EVM内存区域R，然后调用0x00..将R作为参数，然后将R重写为Y，最后调用RETURNDATACOPY操作码。
CVSS Information
N/A
Vulnerability Type
N/A