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Red Hat Security Advisory 2020-3520-01

Red Hat Security Advisory 2020-3520-01
Posted Aug 25, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-3520-01 - Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments.

tags | advisory
systems | linux, redhat
advisories | CVE-2020-8557
SHA-256 | cf09ce0e198862adc8ca5bdcdfaec432c7011d1ee62831e6e4f8c48fa9919c1e

Red Hat Security Advisory 2020-3520-01

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

Synopsis: Moderate: OpenShift Container Platform 4.5.7 openshift-enterprise-hyperkube-container security update
Advisory ID: RHSA-2020:3520-01
Product: Red Hat OpenShift Enterprise
Advisory URL: https://access.redhat.com/errata/RHSA-2020:3520
Issue date: 2020-08-24
CVE Names: CVE-2020-8557
====================================================================
1. Summary:

An update for openshift-enterprise-hyperkube-container is now available for
Red Hat OpenShift Container Platform 4.5.

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):

* kubernetes: Node disk DOS by writing to container /etc/hosts
(CVE-2020-8557)

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 4.5 see the following documentation, which
will be updated shortly for release 4.5.7, for important instructions on
how to upgrade your cluster and fully apply this asynchronous errata
update:

https://docs.openshift.com/container-platform/4.5/release_notes/ocp-4-5-rel
ease-notes.html

Details on how to access this content are available at
https://docs.openshift.com/container-platform/4.5/updating/updating-cluster
- -cli.html.

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

1835977 - CVE-2020-8557 kubernetes: Node disk DOS by writing to container /etc/hosts

5. References:

https://access.redhat.com/security/cve/CVE-2020-8557
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 2020 Red Hat, Inc.
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