RHSA-2023:4780 - Security Advisory

Topic

The components for Red Hat OpenShift support for Windows Containers 6.0.2 are now available. This product release includes bug fixes and security updates for the following packages: windows-machine-config-operator and windows-machine-config-operator-bundle.

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

Red Hat OpenShift support for Windows Containers allows you to deploy Windows container workloads running on Windows Server containers.

Security Fix(es):

• kubernetes: Insufficient input sanitization on Windows nodes leads to privilege escalation (CVE-2023-3676)
• kubernetes: Insufficient input sanitization on Windows nodes leads to privilege escalation (CVE-2023-3955)

For more details about the security issue(s), including the impact, CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

For Windows Machine Config Operator upgrades, see the following documentation:
https://docs.openshift.com/container-platform/latest/windows_containers/windows-node-upgrades.html

Affected Products

• Red Hat OpenShift Container Platform 4.11 for RHEL 8 x86_64

Fixes

• BZ - 2227126 - CVE-2023-3676 kubernetes: Insufficient input sanitization on Windows nodes leads to privilege escalation
• BZ - 2227128 - CVE-2023-3955 kubernetes: Insufficient input sanitization on Windows nodes leads to privilege escalation

CVEs

• CVE-2023-3676
• CVE-2023-3955

References

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