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Red Hat Security Advisory 2019-3267-01

Red Hat Security Advisory 2019-3267-01
Posted Oct 31, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-3267-01 - 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-enterprise-cli container image for Red Hat OpenShift Container Platform 4.1.21. An arbitrary file write vulnerability was addressed.

tags | advisory, arbitrary
systems | linux, redhat
advisories | CVE-2019-11251
SHA-256 | 906104ae39293840d5212d29dd0ff8cc64dadcf01d461ace938bc39d9d04c9cd

Red Hat Security Advisory 2019-3267-01

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

Synopsis: Moderate: OpenShift Container Platform 4.1 openshift-enterprise-cli-container security update
Advisory ID: RHSA-2019:3267-01
Product: Red Hat OpenShift Enterprise
Advisory URL: https://access.redhat.com/errata/RHSA-2019:3267
Issue date: 2019-10-30
CVE Names: CVE-2019-11251
=====================================================================

1. Summary:

An update for openshift-enterprise-cli-container 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. 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-enterprise-cli container image 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.

3. 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

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

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

5. References:

https://access.redhat.com/security/cve/CVE-2019-11251
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 2019 Red Hat, Inc.
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