CVE-2020-26264: GO-2021-0063 - Nil pointer dereference via malicious RPC message in github.com/ethereum/go-ethereum

CVE-2020-26264 · Severity: low · CVSS 3.1 · Published 2021-04-14

Nil pointer dereference via malicious RPC message in github.com/ethereum/go-ethereum

Technologies: github.com/ethereum/go-ethereum (Go). Vendors: Go.

Quick answers

Is CVE-2020-26264 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2020-26264 being exploited in the wild.
How severe is CVE-2020-26264?
Low severity, with a CVSS score of 3.1, published 14 April 2021.
Which products and versions are affected?
github.com/ethereum/go-ethereum (Go) SEMVER:introduced=0,fixed=1.9.25.
Is there a fix for CVE-2020-26264?
Yes. github.com/ethereum/go-ethereum (Go): upgrade to 1.9.25 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2020-26264?
Check whether you run github.com/ethereum/go-ethereum (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • github.com/ethereum/go-ethereum (Go): upgrade to 1.9.25 or later
    go get github.com/ethereum/go-ethereum@v1.9.25

Affected products

  • github.com/ethereum/go-ethereum (Go) SEMVER:introduced=0,fixed=1.9.25

Identifiers

  • CVE-2020-26264
  • GHSA-r33q-22hv-j29q
  • GO-2021-0063

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