CVE-2023-32187: K3s apiserver port is vulnerable to unauthenticated remote denial-of-service (DoS) attack via TLS SAN stuffing attack

CVE-2023-32187 · Severity: low · CVSS 3.1 · Published 2023-09-11

K3s apiserver port is vulnerable to unauthenticated remote denial-of-service (DoS) attack via TLS SAN stuffing attack

Technologies: github.com/k3s-io/k3s (Go). Vendors: Go.

Quick answers

Is CVE-2023-32187 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2023-32187 being exploited in the wild.
How severe is CVE-2023-32187?
Low severity, with a CVSS score of 3.1, published 11 September 2023.
Which products and versions are affected?
github.com/k3s-io/k3s (Go) SEMVER:introduced=0,fixed=1.24.17.
Is there a fix for CVE-2023-32187?
Yes. github.com/k3s-io/k3s (Go): upgrade to 1.24.17 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2023-32187?
Check whether you run github.com/k3s-io/k3s (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/k3s-io/k3s (Go): upgrade to 1.24.17 or later
    go get github.com/k3s-io/k3s@v1.24.17

Affected products

  • github.com/k3s-io/k3s (Go) SEMVER:introduced=0,fixed=1.24.17

Identifiers

  • CVE-2023-32187
  • GHSA-m4hf-6vgr-75r2

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