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  5. CVE-2020-26242

CVE-2020-26242: Denial of service in geth

June 29, 2021 (updated January 30, 2025)

Denial-of-service (crash) during block processing

References

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

Code Behaviors & Features

Detect and mitigate CVE-2020-26242 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →

Affected versions

All versions starting from 0.1.0 before 1.1.1

Fixed versions

  • 1.1.1

Solution

Upgrade to version 1.1.1 or above.

Impact 7.5 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Learn more about CVSS

Weakness

  • CWE-125: Out-of-bounds Read
  • CWE-191: Integer Underflow (Wrap or Wraparound)
  • CWE-400: Uncontrolled Resource Consumption

Source file

go/github.com/holiman/uint256/CVE-2020-26242.yml

Spotted a mistake? Edit the file on GitLab.

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