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I. Basic Information for CVE-2018-20421
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Go Ethereum (aka geth) 1.8.19 allows attackers to cause a denial of service (memory consumption) by rewriting the length of a dynamic array in memory, and then writing data to a single memory location with a large index number, as demonstrated by use of "assembly { mstore }" followed by a "c[0xC800000] = 0xFF" assignment.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Go Ethereum 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Go Ethereum(又名geth)是一款使用Go语言编写的以太坊协议的开源实现。 Go Ethereum 1.8.19版本中存在安全漏洞。攻击者可通过覆盖内存中动态数组的长度并向单个内存地址写入数据利用该漏洞造成拒绝服务(内存消耗)。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
-n/a n/a -
II. Public POCs for CVE-2018-20421
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III. Intelligence Information for CVE-2018-20421
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