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CVE-2020-26242— Denial of service in geth

Quick assessment

Affected
ethereum go-ethereum
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.

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。 Go Ethereum 1.9.18 之前版本存在安全漏洞，该漏洞源于Ethereum协议在块处理期间会出现拒绝服务(崩溃)。

CVSS 6.5 · Medium EPSS 1.48% · P72

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2020-26242

Vulnerability Information
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Vulnerability Title
Denial of service in geth
Source: CVE Program / CVE List V5
Vulnerability Description
Go Ethereum, or "Geth", is the official Golang implementation of the Ethereum protocol. In Geth before version 1.9.18, there is a Denial-of-service (crash) during block processing. This is fixed in 1.9.18.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Ethereum Go-ethereum 安全漏洞
Source: CNNVD (China National Vulnerability Database)
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。 Go Ethereum 1.9.18 之前版本存在安全漏洞，该漏洞源于Ethereum协议在块处理期间会出现拒绝服务(崩溃)。
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
ethereum go-ethereum < 1.9.18 -

II. Public POCs for CVE-2020-26242

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III. Intelligence Information for CVE-2020-26242

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Vendor Advisories for CVE-2020-26242 (1)

Security Blog Posts for CVE-2020-26242 (1)

Same Patch Batch · ethereum · 2020-11-25 · 3 CVEs total

CVE-2020-26241 6.5 MEDIUM Shallow copy bug in geth
CVE-2020-26240 5.3 MEDIUM Erroneous Proof of Work calculation in geth

IV. Related Vulnerabilities

Same product: go-ethereum
Same vendor: ethereum

V. Comments for CVE-2020-26242

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