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Red Hat Product Errata RHSA-2021:3635 - Security Advisory
Issued:
2021-09-29
Updated:
2021-09-29

RHSA-2021:3635 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: OpenShift Container Platform 4.7.32 packages and security update

Type/Severity

Security Advisory: Important

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

Red Hat OpenShift Container Platform release 4.7.32 is now available with
updates to packages and images that fix several bugs and add enhancements.

This release includes a security update for Red Hat OpenShift Container Platform 4.7.

Red Hat Product Security has rated this update as having a security impact of Important. 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.

This advisory contains the RPM packages for Red Hat OpenShift Container Platform 4.7.32. See the following advisory for the container images for this release:

https://access.redhat.com/errata/RHBA-2021:3636

Security Fix(es):

  • [kubernetes: Symlink exchange can allow host filesystem access (CVE-2021-25741)]

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.

All OpenShift Container Platform 4.7 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift Console or the CLI oc command. Instructions for upgrading a cluster are available at https://docs.openshift.com/container-platform/4.7/updating/updating-cluster-between-minor.html#understanding-upgrade-channels_updating-cluster-between-minor

Solution

For OpenShift Container Platform 4.7 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/4.7/release_notes/ocp-4-7-release-notes.html

Details on how to access this content are available at
https://docs.openshift.com/container-platform/4.7/updating/updating-cluster-cli.html

Affected Products

  • Red Hat OpenShift Container Platform 4.7 for RHEL 8 x86_64
  • Red Hat OpenShift Container Platform 4.7 for RHEL 7 x86_64
  • Red Hat OpenShift Container Platform for Power 4.7 for RHEL 8 ppc64le
  • Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.7 for RHEL 8 s390x

Fixes

  • BZ - 1993749 - CVE-2021-25741 kubernetes: Symlink exchange can allow host filesystem access

CVEs

  • CVE-2021-25741

References

  • https://access.redhat.com/security/updates/classification/#important
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat OpenShift Container Platform 4.7 for RHEL 8

SRPM
openshift-4.7.0-202109172126.p0.git.bbbc079.assembly.stream.el8.src.rpm SHA-256: 201942e7cb528543daaef2dacc34195d1bbc1c939a9d79276c7f4862c0220cb9
x86_64
openshift-hyperkube-4.7.0-202109172126.p0.git.bbbc079.assembly.stream.el8.x86_64.rpm SHA-256: 1a62c3266560cf790b75d4552d2b9598aafc47730004b7c8dfdf9e6a5a0d0119

Red Hat OpenShift Container Platform 4.7 for RHEL 7

SRPM
openshift-4.7.0-202109172126.p0.git.bbbc079.assembly.stream.el7.src.rpm SHA-256: 7d454a658a183cf1ac3d265308585e23cbae8362768fd0d9c0391732ef3e3638
x86_64
openshift-hyperkube-4.7.0-202109172126.p0.git.bbbc079.assembly.stream.el7.x86_64.rpm SHA-256: fd81f26a99ba39ec8a47812671309c0619cf5a96553c68761c8bf636d63c7fec

Red Hat OpenShift Container Platform for Power 4.7 for RHEL 8

SRPM
openshift-4.7.0-202109172126.p0.git.bbbc079.assembly.stream.el8.src.rpm SHA-256: 201942e7cb528543daaef2dacc34195d1bbc1c939a9d79276c7f4862c0220cb9
ppc64le
openshift-hyperkube-4.7.0-202109172126.p0.git.bbbc079.assembly.stream.el8.ppc64le.rpm SHA-256: 9779f945d0a482e82ce7863c58fe4f98d042e58b4f75796385e4780b7a4bd481

Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.7 for RHEL 8

SRPM
openshift-4.7.0-202109172126.p0.git.bbbc079.assembly.stream.el8.src.rpm SHA-256: 201942e7cb528543daaef2dacc34195d1bbc1c939a9d79276c7f4862c0220cb9
s390x
openshift-hyperkube-4.7.0-202109172126.p0.git.bbbc079.assembly.stream.el8.s390x.rpm SHA-256: c60185ad1059b9c9bd6564bbe6989c20c6cc6a8d37d03be4a181c8793d84eedf

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

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