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Red Hat OpenShift 4.7 RHSA-2021-2763-01 Important Security Update

red hat
Calendar Grey July 26, 2021
Dist Redhat Esm H88
Red Hat OpenShift Container Platform 4.7.22 update classified as critical includes security patches for libc and openssl.
An update is now available for Red Hat OpenShift Container Platform 4.7

Solution

For OpenShift Container Platform 4.7 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update:

https://docs.redhat.com/en/documentation/openshift_container_platform/4.7/html/release_notes/ocp-4-7-release-notes

Details on how to access this content are available at - -cli.html

The system must be rebooted for this update to take effect.

Summary

Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments.
The kernel packages contain the Linux kernel, the core of any Linux operating system.
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.
Ansible is a SSH-based configuration management, deployment, and task execution system. The openshift-ansible packages contain Ansible code and playbooks for installing and upgrading OpenShift Container Platform 3.
The systemd packages contain systemd, a system and service manager for Linux, compatible with the SysV and LSB init scripts. It provides aggressive parallelism capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, and keeps track of processes using Linux cgroups. In addition, it supports snapshotting and restoring of the system state, maintains mount and automount points, and implements an elaborate transactional dependency-based service control logic. It can also work as a drop-in replacement for sysvinit.
Security Fix(es):
* kernel: size_t-to-int conversion vulnerability in the filesystem layer (CVE-2021-33909)
* systemd: uncontrolled allocation on the stack in function unit_name_path_escape leads to crash (CVE-2021-33910)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Bug Fix(es):
* kernel-rt: update RT source tree to the RHEL-8.3.z source tree (BZ#1957359)
* Placeholder bug for OCP 4.7.0 rpm release (BZ#1983534)

Topics%20covered

Topics Covered

security advisory Red Hat bug fix kernel fix important issue OpenShift systemd fix

References

https://access.redhat.com/security/cve/CVE-2021-33909 https://access.redhat.com/security/cve/CVE-2021-33910 https://access.redhat.com/security/updates/classification#important https://access.redhat.com/security/vulnerabilities/RHSB-2021-006

Package List

Red Hat OpenShift Container Platform 4.7:
Source: cri-o-1.20.4-4.rhaos4.7.gitf7276ed.el7.src.rpm openshift-4.7.0-202107132131.p0.git.558d959.assembly.stream.el7.src.rpm openshift-ansible-4.7.0-202107070256.p0.git.e1b19c2.assembly.stream.el7.src.rpm openshift-clients-4.7.0-202107070256.p0.git.8b4b094.assembly.stream.el7.src.rpm
noarch: openshift-ansible-4.7.0-202107070256.p0.git.e1b19c2.assembly.stream.el7.noarch.rpm openshift-ansible-test-4.7.0-202107070256.p0.git.e1b19c2.assembly.stream.el7.noarch.rpm
x86_64: cri-o-1.20.4-4.rhaos4.7.gitf7276ed.el7.x86_64.rpm cri-o-debuginfo-1.20.4-4.rhaos4.7.gitf7276ed.el7.x86_64.rpm openshift-clients-4.7.0-202107070256.p0.git.8b4b094.assembly.stream.el7.x86_64.rpm openshift-clients-redistributable-4.7.0-202107070256.p0.git.8b4b094.assembly.stream.el7.x86_64.rpm openshift-hyperkube-4.7.0-202107132131.p0.git.558d959.assembly.stream.el7.x86_64.rpm
Red Hat OpenShift Container Platform 4.7:
Source: atomic-openshift-service-idler-4.7.0-202107070256.p0.git.39cfc66.assembly.stream.el8.src.rpm cri-o-1.20.4-4.rhaos4.7.gitf7276ed.el8.src.rpm kernel-4.18.0-240.23.2.el8_3.src.rpm kernel-rt-4.18.0-240.23.2.rt7.79.el8_3.src.rpm openshift-4.7.0-202107132131.p0.git.558d959.assembly.stream.el8.src.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:2763-01
Product: Red Hat OpenShift Enterprise
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2763
Issue date: 2021-07-26

Topic

An update is now available for Red Hat OpenShift Container Platform 4.7.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat bug fix kernel fix important issue OpenShift systemd fix

Relevant Releases Architectures

Red Hat OpenShift Container Platform 4.7 - noarch, ppc64le, s390x, x86_64

Bugs Fixed

1970273 - CVE-2021-33909 kernel: size_t-to-int conversion vulnerability in the filesystem layer

1970887 - CVE-2021-33910 systemd: uncontrolled allocation on the stack in function unit_name_path_escape leads to crash

1983534 - Placeholder bug for OCP 4.7.0 rpm release

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