Issued:

2020-08-05

Updated:

2020-08-05

RHSA-2020:3183 - Moderate: OpenShift Container Platform 4.3.31 openshift security update

Synopsis

Moderate: OpenShift Container Platform 4.3.31 openshift security update

Type/Severity

Security Advisory Moderate

Topic

An update for openshift is now available for Red Hat OpenShift Container Platform 4.3.

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.

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: A flaw was found in Kubernetes that allows attackers on adjacent networks to reach services exposed on localhost ports, previously thought to be unreachable. This flaw allows an attacker to gain privileges or access confidential information for any services listening on localhost ports that are not protected by authentication. (CVE-2020-8558)

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.

Solution

For OpenShift Container Platform 4.3 see the following documentation, which will be updated shortly for release 4.3.32, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update:

https://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-release-notes.html

Details on how to access this content are available at This page is not included, but the link has been rewritten to point to the nearest parent document.https://docs.openshift.com/container-platform/4.3/updating/updating-cluster-cli.html.

Affected Products

Updated Packages

• openshift-hyperkube-4.3.31-202007280738.p0.git.0.9884401.el8.s390x.rpm
• openshift-4.3.31-202007280738.p0.git.0.9884401.el8.src.rpm
• openshift-hyperkube-4.3.31-202007280738.p0.git.0.9884401.el8.x86_64.rpm
• openshift-hyperkube-4.3.31-202007280738.p0.git.0.9884401.el7.s390x.rpm
• openshift-hyperkube-4.3.31-202007280738.p0.git.0.9884401.el8.ppc64le.rpm
• openshift-hyperkube-4.3.31-202007280738.p0.git.0.9884401.el7.x86_64.rpm
• openshift-4.3.31-202007280738.p0.git.0.9884401.el7.src.rpm
• openshift-hyperkube-4.3.31-202007280738.p0.git.0.9884401.el7.ppc64le.rpm

Fixes

• This content is not included.BZ - 1843358

CVEs

• CVE-2020-8558

References

• https://access.redhat.com/security/updates/classification/#moderate

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.