RHSA-2023:5442 - Security Advisory

Topic

Red Hat Advanced Cluster Management for Kubernetes 2.8.2 General
Availability release images, which provide security updates and fix bugs.

Red Hat Product Security has rated this update as having a security impact
of Moderate. 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

Red Hat Advanced Cluster Management for Kubernetes 2.8.2 images

Red Hat Advanced Cluster Management for Kubernetes provides the
capabilities to address common challenges that administrators and site
reliability engineers face as they work across a range of public and
private cloud environments. Clusters and applications are all visible and
managed from a single console—with security policy built in.

This advisory contains the container images for Red Hat Advanced Cluster
Management for Kubernetes, which fix several bugs. See the following
Release Notes documentation, which will be updated shortly for this
release, for additional details about this release:

https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.8/html/release_notes/

Jira issues resolved:

• ACM-5398: ACM ignores Policies about empty label/field
• ACM-6003: UI throws "ClusterSets failed to load" error while deploying application set based applications from console
• ACM-6171: Policy shows as "Compliant" despite there being violations

Security fix(es):

• CVE-2023-26136 tough-cookie: prototype pollution in cookie memstore
• CVE-2022-41721 x/net/http2/h2c: request smuggling
• CVE-2023-24539 html/template: improper sanitization of CSS values
• CVE-2023-24540 html/template: improper handling of JavaScript whitespace
• CVE-2023-29400 html/template: improper handling of empty HTML attributes

Solution

For Red Hat Advanced Cluster Management for Kubernetes, see the following
documentation, which will be updated shortly for this release, for important
instructions on installing this release:

https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.8/html-single/install/index#installing

Affected Products

• Red Hat Advanced Cluster Management for Kubernetes 2 for RHEL 8 x86_64

Fixes

• BZ - 2162182 - CVE-2022-41721 x/net/http2/h2c: request smuggling
• BZ - 2196026 - CVE-2023-24539 golang: html/template: improper sanitization of CSS values
• BZ - 2196027 - CVE-2023-24540 golang: html/template: improper handling of JavaScript whitespace
• BZ - 2196029 - CVE-2023-29400 golang: html/template: improper handling of empty HTML attributes
• BZ - 2219310 - CVE-2023-26136 tough-cookie: prototype pollution in cookie memstore
• ACM-5398 - ACM ignores Policies about empty label/field
• ACM-6003 - UI throws "ClusterSets failed to load" error while deploying application set based applications from console
• ACM-6171 - [2.8] Policy shows as "Compliant" despite there being violations

CVEs

• CVE-2022-41721
• CVE-2023-24539
• CVE-2023-24540
• CVE-2023-26136
• CVE-2023-29400
• CVE-2023-29491
• CVE-2023-30630

References

• https://access.redhat.com/security/updates/classification/#moderate