CVE-2018-20421
Quick assessment
Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
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）。
Possible ATT&CK Techniques 1 AI
T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2018-20421
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
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
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | n/a | n/a | - |
|
II. Public POCs for CVE-2018-20421
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Same Patch Batch · n/a · 2018-12-24 · 26 CVEs total
| CVE-2018-20426 | libming 安全漏洞 | |
| CVE-2018-20410 | WellinTech KingSCADA 缓冲区错误漏洞 | |
| CVE-2018-20420 | webERP 访问控制错误漏洞 | |
| CVE-2018-20419 | DouCo DouPHP 跨站请求伪造漏洞 | |
| CVE-2018-20424 | Discuz! DiscuzX 安全漏洞 | |
| CVE-2018-20423 | Discuz! DiscuzX 安全漏洞 | |
| CVE-2018-20422 | Discuz! DiscuzX 安全漏洞 | |
| CVE-2018-20418 | Craft CMS 跨站脚本漏洞 | |
| CVE-2018-20431 | GNU Libextractor 安全漏洞 | |
| CVE-2018-20430 | GNU Libextractor 缓冲区错误漏洞 | |
| CVE-2018-20429 | libming 安全漏洞 | |
| CVE-2018-20428 | libming 安全漏洞 | |
| CVE-2018-20427 | libming 安全漏洞 | |
| CVE-2018-20436 | Telegram Web 和Telegram for Android 安全漏洞 | |
| CVE-2018-20425 | libming 安全漏洞 | |
| CVE-2018-19357 | XMPlay 缓冲区错误漏洞 | |
| CVE-2018-20433 | c3p0 跨站脚本漏洞 | |
| CVE-2018-19248 | Epson WorkForce WF-2861 访问控制错误漏洞 | |
| CVE-2018-19232 | Epson WorkForce WF-2861 输入验证错误漏洞 | |
| CVE-2018-18960 | Epson WorkForce WF-2861 资源管理错误漏洞 |
Showing top 20 of 26 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2018-20421
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