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CVE-2021-39137— Consensus flaw during block processing in go-ethereum

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 中存在缓冲区错误漏洞，该漏洞源于产品会导致链分裂。以下产品及版本会受到影响：Go-Ethereum v1.10.8 之前版本。 796f4f7085ac95a1b0ccee8ff3c6c183219cdab2 之前版本。

CVSS 6.5 · Medium EPSS 1.32% · P69

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-39137

Vulnerability Information
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Vulnerability Title
Consensus flaw during block processing in go-ethereum
Source: CVE Program / CVE List V5
Vulnerability Description
go-ethereum is the official Go implementation of the Ethereum protocol. In affected versions a consensus-vulnerability in go-ethereum (Geth) could cause a chain split, where vulnerable versions refuse to accept the canonical chain. Further details about the vulnerability will be disclosed at a later date. A patch is included in the upcoming `v1.10.8` release. No workaround are available.
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
解释冲突
Source: CVE Program / CVE List V5
Vulnerability Title
Ethereum Go-ethereum 缓冲区错误漏洞
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 中存在缓冲区错误漏洞，该漏洞源于产品会导致链分裂。以下产品及版本会受到影响：Go-Ethereum v1.10.8 之前版本。 796f4f7085ac95a1b0ccee8ff3c6c183219cdab2 之前版本。
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 >= 1.10.0, < 1.10.8 -

II. Public POCs for CVE-2021-39137

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III. Intelligence Information for CVE-2021-39137

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Vendor Advisories for CVE-2021-39137 (1)

Other References for CVE-2021-39137 (1)

IV. Related Vulnerabilities

Same product: go-ethereum
Same vendor: ethereum
Same weakness: CWE-436

V. Comments for CVE-2021-39137

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