RHSA-2023:6148 - Security Advisory

Topic

Red Hat Advanced Cluster Management for Kubernetes 2.7.9 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 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

Red Hat Advanced Cluster Management for Kubernetes 2.7.9 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/2.7/html/release_notes/

Security fix(es):
CVE-2023-44487 HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack
CVE-2023-39325 golang: net/http, x/net/http2: rapid stream resets can cause excessive work
CVE-2023-39321 golang: crypto/tls: panic when processing post-handshake message on QUIC connections
CVE-2023-39319 golang: html/template: improper handling of special tags within script contexts
CVE-2023-39318 golang: html/template: improper handling of HTML-like comments within script contexts
CVE-2023-39322 golang: crypto/tls: lack of a limit on buffered post-handshake

Solution

For additional information about 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/2.7/html-single/install/index#installing

Affected Products

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

Fixes

• BZ - 2237773 - CVE-2023-39319 golang: html/template: improper handling of special tags within script contexts
• BZ - 2237776 - CVE-2023-39318 golang: html/template: improper handling of HTML-like comments within script contexts
• BZ - 2237777 - CVE-2023-39321 golang: crypto/tls: panic when processing post-handshake message on QUIC connections
• BZ - 2237778 - CVE-2023-39322 golang: crypto/tls: lack of a limit on buffered post-handshake
• BZ - 2242803 - CVE-2023-44487 HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack)
• BZ - 2243296 - CVE-2023-39325 golang: net/http, x/net/http2: rapid stream resets can cause excessive work (CVE-2023-44487)

CVEs

• CVE-2023-4527
• CVE-2023-4806
• CVE-2023-4813
• CVE-2023-4911
• CVE-2023-29491
• CVE-2023-30630
• CVE-2023-39318
• CVE-2023-39319
• CVE-2023-39321
• CVE-2023-39322
• CVE-2023-39325
• CVE-2023-40217
• CVE-2023-44487

References

• https://access.redhat.com/security/updates/classification/#important
• https://access.redhat.com/security/vulnerabilities/RHSB-2023-003