CVE-2021-21284: moby Access to remapped root allows privilege escalation to real root

CVE-2021-21284 · Severity: low · CVSS 3.1 · Published 2024-01-31

moby Access to remapped root allows privilege escalation to real root

Technologies: github.com/moby/moby (Go). Vendors: Go.

Quick answers

Is CVE-2021-21284 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2021-21284 being exploited in the wild.
How severe is CVE-2021-21284?
Low severity, with a CVSS score of 3.1, published 31 January 2024.
Which products and versions are affected?
github.com/moby/moby (Go) SEMVER:introduced=0,fixed=19.3.15.
Is there a fix for CVE-2021-21284?
Yes. github.com/moby/moby (Go): upgrade to 19.3.15 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2021-21284?
Check whether you run github.com/moby/moby (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/moby/moby (Go): upgrade to 19.3.15 or later
    go get github.com/moby/moby@v19.3.15

Affected products

  • github.com/moby/moby (Go) SEMVER:introduced=0,fixed=19.3.15

Identifiers

  • CVE-2021-21284
  • GHSA-7452-xqpj-6rpc

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