CVE-2020-8559: GO-2024-2748 - Privilege Escalation in Kubernetes in k8s.io/apimachinery

CVE-2020-8559 · Severity: low · CVSS 3.1 · Published 2024-05-20

Privilege Escalation in Kubernetes in k8s.io/apimachinery

Technologies: k8s.io/apimachinery (Go), k8s.io/kubernetes (Go). Vendors: Go.

Quick answers

Is CVE-2020-8559 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2020-8559 being exploited in the wild.
How severe is CVE-2020-8559?
Low severity, with a CVSS score of 3.1, published 20 May 2024.
Which products and versions are affected?
k8s.io/apimachinery (Go) SEMVER:introduced=0,fixed=0.16.13, SEMVER:introduced=0,fixed=0.16.13,introduced=0.17.0,fixed=0.17.9,introduced=0.18.0,fixed=0.18.7-rc.0; k8s.io/kubernetes (Go) SEMVER:introduced=0,fixed=1.16.13, SEMVER:introduced=0,fixed=1.16.13,introduced=1.17.0,fixed=1.17.9,introduced=1.18.0,fixed=1.18.7.
Is there a fix for CVE-2020-8559?
Yes. k8s.io/apimachinery (Go): upgrade to 0.16.13, 0.18.7-rc.0 or later; k8s.io/kubernetes (Go): upgrade to 1.16.13, 1.18.7 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2020-8559?
Check whether you run k8s.io/apimachinery (Go) or k8s.io/kubernetes (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

  • k8s.io/apimachinery (Go): upgrade to 0.16.13, 0.18.7-rc.0 or later
    go get k8s.io/apimachinery@v0.18.7-rc.0
  • k8s.io/kubernetes (Go): upgrade to 1.16.13, 1.18.7 or later
    go get k8s.io/kubernetes@v1.18.7

Affected products

  • k8s.io/apimachinery (Go) SEMVER:introduced=0,fixed=0.16.13, SEMVER:introduced=0,fixed=0.16.13,introduced=0.17.0,fixed=0.17.9,introduced=0.18.0,fixed=0.18.7-rc.0
  • k8s.io/kubernetes (Go) SEMVER:introduced=0,fixed=1.16.13, SEMVER:introduced=0,fixed=1.16.13,introduced=1.17.0,fixed=1.17.9,introduced=1.18.0,fixed=1.18.7

Identifiers

  • CVE-2020-8559
  • GHSA-33c5-9fx5-fvjm
  • GO-2024-2748

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.