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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Critical: OpenShift Container Platform 4.7.40 security
 update
Advisory ID:       RHSA-2021:5107-01
Product:           Red Hat OpenShift Enterprise
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:5107
Issue date:        2021-12-16
CVE Names:         CVE-2021-4104 CVE-2021-43527 CVE-2021-44228 
                   CVE-2021-45046 
=====================================================================

1. Summary:

Red Hat OpenShift Container Platform release 4.7.40 is now available with
updates to packages and images that fix several bugs and add enhancements.

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

2. Description:

Red Hat OpenShift Container Platform is Red Hat's cloud computing
Kubernetes application platform solution designed for on-premise or private
cloud deployments.

Security Fix(es):

* log4j-core: Remote code execution in Log4j 2.x when logs contain an
attacker-controlled string value (CVE-2021-44228)
* log4j: Remote code execution in Log4j 1.x when application is configured
to use JMSAppender (CVE-2021-4104)
* log4j-core: DoS in log4j 2.x with thread context message pattern and
context lookup pattern (incomplete fix for CVE-2021-44228) (CVE-2021-45046)

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.

3. 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.openshift.com/container-platform/4.7/release_notes/ocp-4-7-release-notes.html

Details on how to access this content are available at
https://docs.openshift.com/container-platform/4.7/updating/updating-cluster-cli.html

4. Bugs fixed (https://bugzilla.redhat.com/):

2030932 - CVE-2021-44228 log4j-core: Remote code execution in Log4j 2.x when
 logs contain an attacker-controlled string value
2031667 - CVE-2021-4104 log4j: Remote code execution in Log4j 1.x when
 application is configured to use JMSAppender
2032580 - CVE-2021-45046 log4j-core: DoS in log4j 2.x with thread context
 message pattern and context lookup pattern (incomplete fix for CVE-2021-44228)

5. References:

https://access.redhat.com/security/cve/CVE-2021-4104
https://access.redhat.com/security/cve/CVE-2021-43527
https://access.redhat.com/security/cve/CVE-2021-44228
https://access.redhat.com/security/cve/CVE-2021-45046
https://access.redhat.com/security/updates/classification/#critical
https://access.redhat.com/security/vulnerabilities/RHSB-2021-009

6. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
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