Important: Red Hat Advanced Cluster Security 3.74 for Kubernetes security update

Topic

An update is now available for Red Hat Advanced Cluster Security for Kubernetes (RHACS).

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 link(s) in the References section.

Description

This release of RHACS 3.74.4 includes a fix for CVE-2023-24540 by building RHACS with updated Golang.

Security Fix(es):

• golang: html/template: improper handling of JavaScript whitespace (CVE-2023-24540)
• golang: html/template: improper sanitization of CSS values (CVE-2023-24539)
• golang: html/template: improper handling of empty HTML attributes (CVE-2023-29400)

For more details about the security issues, including the impact, a CVSS score, acknowledgments, and other related information, refer to the links listed in the References section.

Solution

If you are using an earlier version of RHACS 3.74, you are advised to upgrade to patch release 3.74.4.

Affected Products

• Red Hat Advanced Cluster Security for Kubernetes 3 x86_64
• Red Hat Advanced Cluster Security for Kubernetes for IBM Z and LinuxONE 3 s390x
• Red Hat Advanced Cluster Security for Kubernetes for IBM Power, little endian 3 ppc64le

Fixes

• 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
• ROX-17405 - Release RHACS 3.74.4

CVEs

• CVE-2022-2795
• CVE-2022-36227
• CVE-2023-2491
• CVE-2023-24539
• CVE-2023-24540
• CVE-2023-27535
• CVE-2023-29400

References

• https://access.redhat.com/security/updates/classification/#important
• https://docs.openshift.com/acs/3.74/release_notes/374-release-notes.html