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

Synopsis:          Moderate: Red Hat OpenShift Enterprise security and bug fix update
Advisory ID:       RHSA-2021:2500-01
Product:           Red Hat OpenShift Enterprise
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:2500
Issue date:        2021-06-29
CVE Names:         CVE-2019-20920 CVE-2019-20922 CVE-2021-23369
                   CVE-2021-23383
====================================================================
1. Summary:

Red Hat OpenShift Container Platform release 4.6.36 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 Moderate. 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):

* nodejs-handlebars: lookup helper fails to properly validate templates
allowing for arbitrary JavaScript execution (CVE-2019-20920)

* nodejs-handlebars: an endless loop while processing specially-crafted
templates leads to DoS (CVE-2019-20922)

* nodejs-handlebars: Remote code execution when compiling untrusted compile
templates with strict:true option (CVE-2021-23369)

* nodejs-handlebars: Remote code execution when compiling untrusted compile
templates with compat:true option (CVE-2021-23383)

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):

* Setting up Kibana and Elasticsearch replica to 0, Kibana pods are created
and indexmanagement jobs (BZ#1942609)

3. Solution:

For OpenShift Container Platform 4.6 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/4.6/release_notes/ocp-4-6-rel
ease-notes.html

Details on how to access this content are available at
https://docs.openshift.com/container-platform/4.6/updating/updating-cluster
- -cli.html

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

1882256 - CVE-2019-20922 nodejs-handlebars: an endless loop while processing specially-crafted templates leads to DoS
1882260 - CVE-2019-20920 nodejs-handlebars: lookup helper fails to properly validate templates allowing for arbitrary JavaScript execution
1942609 - Setting up Kibana and Elasticsearch replica to 0, Kibana pods are created and indexmanagement jobs
1948761 - CVE-2021-23369 nodejs-handlebars: Remote code execution when compiling untrusted compile templates with strict:true option
1956688 - CVE-2021-23383 nodejs-handlebars: Remote code execution when compiling untrusted compile templates with compat:true option

5. References:

https://access.redhat.com/security/cve/CVE-2019-20920
https://access.redhat.com/security/cve/CVE-2019-20922
https://access.redhat.com/security/cve/CVE-2021-23369
https://access.redhat.com/security/cve/CVE-2021-23383
https://access.redhat.com/security/updates/classification/#moderate

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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