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CVE-2020-26242

Date: November 24, 2020

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.

Language: Go

Severity Score

Related Resources (10)

https://github.com/holiman/uint256/commit/6785da6e3eea403260a5760029e722aa4ff1716d
https://github.com/ethereum/go-ethereum/commit/7163a6664ee664df81b9028ab3ba13b9d65a7196
https://pkg.go.dev/vuln/GO-2021-0103
https://blog.ethereum.org/2020/11/12/geth_security_release
https://github.com/holiman/uint256/pull/80
https://blog.ethereum.org/2020/11/12/geth_security_release/
https://nvd.nist.gov/vuln/detail/CVE-2020-26242
https://github.com/ethereum/go-ethereum/security/advisories/GHSA-jm5c-rv3w-w83m
https://github.com/ethereum/go-ethereum
https://www.mend.io/vulnerability-database/CVE-2020-26242

Severity Score

Weakness Type (CWE)

Integer Underflow (Wrap or Wraparound)

CWE-191

Out-of-bounds Read

CWE-125

Uncontrolled Resource Consumption

CWE-400

Insufficient Information

NVD-CWE-noinfo

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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