Issued:
2021-11-30
Updated:
2021-11-30

RHSA-2021:4829 - Important: OpenShift Container Platform 4.8.22 security update

Synopsis

Important: OpenShift Container Platform 4.8.22 security update

Type/Severity

Security Advisory Important

Topic

Red Hat OpenShift Container Platform release 4.8.22 is now available with updates to packages and images that fix several bugs and add enhancements.

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 4.8.22. See the following advisory for the container images for this release:

https://access.redhat.com/errata/RHBA-2021:4830

All OpenShift Container Platform 4.8 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 This page is not included, but the link has been rewritten to point to the nearest parent document.https://docs.openshift.com/container-platform/4.8/updating/updating-cluster-between-minor.html#understanding-upgrade-channels_updating-cluster-between-minor

Security Fix(es):

  • jenkins-2-plugins/subversion: does not restrict the name of a file when looking up a subversion key (CVE-2021-21698)
  • jenkins: FilePath#mkdirs does not check permission to create parent directories (CVE-2021-21685)
  • jenkins: File path filters do not canonicalize paths, allowing operations to follow symbolic links to outside allowed directories (CVE-2021-21686)
  • jenkins: FilePath#untar does not check permission to create symbolic links when unarchiving a symbolic link (CVE-2021-21687)
  • jenkins: FilePath#reading(FileVisitor) does not reject any operations allowing users to have unrestricted read access (CVE-2021-21688)
  • coreos-installer: restrict access permissions on /boot/ignition{,/config.ign} (CVE-2021-3917)
  • jenkins: FilePath#unzip and FilePath#untar were not subject to any access control (CVE-2021-21689)
  • jenkins: Agent processes are able to completely bypass file path filtering by wrapping the file operation in an agent file path (CVE-2021-21690)
  • jenkins: Creating symbolic links is possible without the symlink permission (CVE-2021-21691)
  • jenkins: The operations FilePath#renameTo and FilePath#moveAllChildrenTo only check read permission on the source path (CVE-2021-21692)
  • jenkins: When creating temporary files, permission to create files is only checked after they’ve been created. (CVE-2021-21693)
  • jenkins: FilePath#toURI, FilePath#hasSymlink, FilePath#absolutize, FilePath#isDescendant, and FilePath#get*DiskSpace do not check any permissions (CVE-2021-21694)
  • jenkins: FilePath#listFiles lists files outside directories with agent read access when following symbolic links. (CVE-2021-21695)
  • jenkins: Agent-to-controller access control allowed writing to sensitive directory used by Pipeline: Shared Groovy Libraries Plugin (CVE-2021-21696)
  • jenkins: Agent-to-controller access control allows reading/writing most content of build directories (CVE-2021-21697)

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 4.8 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/4.8/release_notes/ocp-4-8-release-notes.html

Details on how to access this content are available at https://docs.openshift.com/container-platform/4.8/updating/updating-cluster-cli.html

Affected Products

ProductVersionArch
Red Hat OpenShift Container Platform4.8x86_64
Red Hat OpenShift Container Platform4.8x86_64
Red Hat OpenShift Container Platform for Power4.8ppc64le
Red Hat OpenShift Container Platform for IBM Z and LinuxONE4.8s390x

Updated Packages

  • cri-o-1.21.4-3.rhaos4.8.git84fa55d.el8.x86_64.rpm
  • coreos-installer-0.9.0-8.rhaos4.8.el8.ppc64le.rpm
  • coreos-installer-debugsource-0.9.0-8.rhaos4.8.el8.s390x.rpm
  • python3-kuryr-kubernetes-4.8.0-202111221627.p0.g43dd2f6.assembly.stream.el8.noarch.rpm
  • cri-o-debuginfo-1.21.4-3.rhaos4.8.git84fa55d.el7.x86_64.rpm
  • coreos-installer-bootinfra-0.9.0-8.rhaos4.8.el8.s390x.rpm
  • cri-o-1.21.4-3.rhaos4.8.git84fa55d.el7.x86_64.rpm
  • coreos-installer-0.9.0-8.rhaos4.8.el8.x86_64.rpm
  • jenkins-2.303.3.1637596565-1.el8.noarch.rpm
  • openshift-4.8.0-202111221934.p0.g81bc627.assembly.stream.el7.src.rpm
  • openshift-kuryr-controller-4.8.0-202111221627.p0.g43dd2f6.assembly.stream.el8.noarch.rpm
  • cri-o-1.21.4-3.rhaos4.8.git84fa55d.el8.src.rpm
  • cri-o-debugsource-1.21.4-3.rhaos4.8.git84fa55d.el8.ppc64le.rpm
  • coreos-installer-bootinfra-0.9.0-8.rhaos4.8.el8.ppc64le.rpm
  • coreos-installer-0.9.0-8.rhaos4.8.el8.src.rpm
  • coreos-installer-bootinfra-debuginfo-0.9.0-8.rhaos4.8.el8.s390x.rpm
  • coreos-installer-bootinfra-debuginfo-0.9.0-8.rhaos4.8.el8.x86_64.rpm
  • coreos-installer-debugsource-0.9.0-8.rhaos4.8.el8.x86_64.rpm
  • cri-o-1.21.4-3.rhaos4.8.git84fa55d.el8.s390x.rpm
  • openshift-4.8.0-202111221934.p0.g81bc627.assembly.stream.el8.src.rpm
  • openshift-hyperkube-4.8.0-202111221934.p0.g81bc627.assembly.stream.el7.x86_64.rpm
  • openshift-hyperkube-4.8.0-202111221934.p0.g81bc627.assembly.stream.el8.ppc64le.rpm
  • openshift-kuryr-4.8.0-202111221627.p0.g43dd2f6.assembly.stream.el8.src.rpm
  • coreos-installer-0.9.0-8.rhaos4.8.el8.s390x.rpm
  • coreos-installer-debugsource-0.9.0-8.rhaos4.8.el8.ppc64le.rpm
  • jenkins-2-plugins-4.8.1637599935-1.el8.noarch.rpm
  • cri-o-debuginfo-1.21.4-3.rhaos4.8.git84fa55d.el8.x86_64.rpm
  • coreos-installer-debuginfo-0.9.0-8.rhaos4.8.el8.s390x.rpm
  • cri-o-debuginfo-1.21.4-3.rhaos4.8.git84fa55d.el8.ppc64le.rpm
  • python-sushy-3.7.4-0.20211119091058.2cc60dc.el8.src.rpm
  • openshift-hyperkube-4.8.0-202111221934.p0.g81bc627.assembly.stream.el8.s390x.rpm
  • coreos-installer-debuginfo-0.9.0-8.rhaos4.8.el8.x86_64.rpm
  • openshift-kuryr-common-4.8.0-202111221627.p0.g43dd2f6.assembly.stream.el8.noarch.rpm
  • cri-o-debugsource-1.21.4-3.rhaos4.8.git84fa55d.el8.x86_64.rpm
  • openshift-kuryr-cni-4.8.0-202111221627.p0.g43dd2f6.assembly.stream.el8.noarch.rpm
  • jenkins-2-plugins-4.8.1637599935-1.el8.src.rpm
  • cri-o-1.21.4-3.rhaos4.8.git84fa55d.el8.ppc64le.rpm
  • cri-o-debuginfo-1.21.4-3.rhaos4.8.git84fa55d.el8.s390x.rpm
  • coreos-installer-bootinfra-debuginfo-0.9.0-8.rhaos4.8.el8.ppc64le.rpm
  • jenkins-2.303.3.1637596565-1.el8.src.rpm
  • python3-sushy-tests-3.7.4-0.20211119091058.2cc60dc.el8.noarch.rpm
  • python3-sushy-3.7.4-0.20211119091058.2cc60dc.el8.noarch.rpm
  • coreos-installer-debuginfo-0.9.0-8.rhaos4.8.el8.ppc64le.rpm
  • openshift-hyperkube-4.8.0-202111221934.p0.g81bc627.assembly.stream.el8.x86_64.rpm
  • cri-o-1.21.4-3.rhaos4.8.git84fa55d.el7.src.rpm
  • cri-o-debugsource-1.21.4-3.rhaos4.8.git84fa55d.el8.s390x.rpm

Fixes

CVEs

References

Additional information