Issued:
2025-02-11
Updated:
2025-02-11

RHSA-2025:1332 - Important: Gatekeeper v3.15.3

Synopsis

Important: Gatekeeper v3.15.3

Type/Severity

Security Advisory Important

Topic

Gatekeeper v3.15.3

Gatekeeper is a validating webhook with auditing capabilities that can enforce custom resource definition-based policies that are run with the Open Policy Agent (OPA). Gatekeeper is supported through a Red Hat Advanced Cluster Management for Kubernetes subscription.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE links in the References section.

Description

Gatekeeper v3.15.3

Starting in v3.15.3, users can specify a containerArguments list of names and values for both the audit and webhook configurations to be passed to the respective deployment. These will be ignored if the argument has already been set by the operator or specifies an argument listed in the deny list.

Starting in v3.15.3, the following namespaces are exempt from admission control:

  • kube-*
  • multicluster-engine
  • hypershift
  • hive
  • rhacs-operator
  • open-cluster-*
  • openshift-*

To disable the default exempt namespaces, set the namespaces you want on the object.

Security fix(es):

  • golang.org/x/crypto/ssh: Misuse of ServerConfig.PublicKeyCallback might cause authorization bypass in golang.org/x/crypto (CVE-2024-45337)
  • golang.org/x/net/html: Non-linear parsing of case-insensitive content in golang.org/x/net/html (CVE-2024-45338)

Additional Release Notes:

  • v3.15.0 https://github.com/open-policy-agent/gatekeeper/releases/tag/v3.15.0
  • v3.15.1 https://github.com/open-policy-agent/gatekeeper/releases/tag/v3.15.1

Solution

For more information, see the following resources:

  • See the Gatekeeper documentation: https://open-policy-agent.github.io/gatekeeper/website/docs/.

  • For support and troubleshooting, Gatekeeper is supported through a Red Hat Advanced Cluster Management for Kubernetes subscription: This content is not included.https://access.redhat.com/products/red-hat-advanced-cluster-management-for-kubernetes.

  • The Open Policy Agent Gatekeeper community collaborates on Slack. Join the #opa-gatekeeper channel: https://openpolicyagent.slack.com/archives/CDTN970AX.

  • Open issues on the Gatekeeper GitHub repository: https://github.com/open-policy-agent/gatekeeper/issues.

  • See the installation and upgrade documentation: https://open-policy-agent.github.io/gatekeeper/website/docs/install.

Affected Products

ProductVersionArch
Gatekeeper3.15x86_64

Fixes

CVEs

References

Additional information