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

Synopsis:          Moderate: OpenShift Container Platform 4.1 openshift security update
Advisory ID:       RHSA-2019:3266-01
Product:           Red Hat OpenShift Enterprise
Advisory URL:      https://access.redhat.com/errata/RHSA-2019:3266
Issue date:        2019-10-30
CVE Names:         CVE-2019-11251 
=====================================================================

1. Summary:

An update for openshift is now available for Red Hat OpenShift Container
Platform 4.1.

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. Relevant releases/architectures:

Red Hat OpenShift Container Platform 4.1 - x86_64

3. Description:

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

This advisory contains the openshift RPM packages for Red Hat
OpenShift Container Platform 4.1.21.

Security Fix(es):

* kubernetes: `kubectl cp` allows for arbitrary file write via double
symlinks (CVE-2019-11251)

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.

4. Solution:

For OpenShift Container Platform 4.1 see the following documentation, which
will be updated shortly for release 4.1.21, for important instructions on
how to upgrade your cluster and fully apply this asynchronous errata
update:

https://docs.openshift.com/container-platform/4.1/release_notes/ocp-4-1-rel
ease-notes.html

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

1753495 - CVE-2019-11251 kubernetes: `kubectl cp` allows for arbitrary file write via double symlinks

6. Package List:

Red Hat OpenShift Container Platform 4.1:

Source:
openshift-4.1.21-201910220952.git.0.493dbf6.el7.src.rpm

x86_64:
openshift-clients-4.1.21-201910220952.git.0.493dbf6.el7.x86_64.rpm
openshift-clients-redistributable-4.1.21-201910220952.git.0.493dbf6.el7.x86_64.rpm
openshift-hyperkube-4.1.21-201910220952.git.0.493dbf6.el7.x86_64.rpm

Red Hat OpenShift Container Platform 4.1:

Source:
openshift-4.1.21-201910220952.git.0.493dbf6.el8.src.rpm

x86_64:
openshift-clients-4.1.21-201910220952.git.0.493dbf6.el8.x86_64.rpm
openshift-clients-redistributable-4.1.21-201910220952.git.0.493dbf6.el8.x86_64.rpm
openshift-hyperkube-4.1.21-201910220952.git.0.493dbf6.el8.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2019-11251
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

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

Copyright 2019 Red Hat, Inc.
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