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Red Hat Product Errata RHSA-2021:3642 - Security Advisory
Issued:
2021-09-29
Updated:
2021-09-29

RHSA-2021:3642 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: OpenShift Container Platform 4.6.46 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 4.6.46 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.

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 4.6 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/4.6/updating/updating-cluster-between-minor.html#understanding-upgrade-channels_updating-cluster-between-minor

Solution

For OpenShift Container Platform 4.6 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/4.6/release_notes/ocp-4-6-release-notes.html

Details on how to access this content are available at
https://docs.openshift.com/container-platform/4.6/updating/updating-cluster-cli.html

Affected Products

  • Red Hat OpenShift Container Platform 4.6 for RHEL 8 x86_64
  • Red Hat OpenShift Container Platform 4.6 for RHEL 7 x86_64
  • Red Hat OpenShift Container Platform for Power 4.6 for RHEL 8 ppc64le
  • Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.6 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 4.6 for RHEL 8

SRPM
cri-o-1.19.4-2.rhaos4.6.gitea37eea.el8.src.rpm SHA-256: 35ccddee8d8e1a82a410353121925eb3139dacd7fc8974cb9daee70c835ead29
openshift-4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el8.src.rpm SHA-256: e623d704267baf9d81c21cacf0912981d5247a2fb198ab269542997549d45755
x86_64
cri-o-1.19.4-2.rhaos4.6.gitea37eea.el8.x86_64.rpm SHA-256: 5b5aae1448044df633c384bee1b88d39c7d66d0354147dd3f1b970d19946e4a9
cri-o-debuginfo-1.19.4-2.rhaos4.6.gitea37eea.el8.x86_64.rpm SHA-256: 0ce968384b7dd1dc61209b8fa7aab2f8e3012109f36374cca5b3b6c4f3251a74
cri-o-debugsource-1.19.4-2.rhaos4.6.gitea37eea.el8.x86_64.rpm SHA-256: bbdb1c6743ffce1dddd2f5b1c6477dc1b2d0c222addc837aedc2183aa4c39312
openshift-hyperkube-4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el8.x86_64.rpm SHA-256: 195e68d26021e4701068d22922d3fff81c482f26a1a188bf4c3225d74efdfb1d

Red Hat OpenShift Container Platform 4.6 for RHEL 7

SRPM
cri-o-1.19.4-2.rhaos4.6.gitea37eea.el7.src.rpm SHA-256: 7ec786baf6fa15efa077ea10ca0ccd69dd60ee973d0c886f153fa2a3285a76c0
openshift-4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el7.src.rpm SHA-256: 4d7fdd2ed5cabdfe9d9a08cf6b529f4ea824baf361c08075c2c261a86e0c54e4
x86_64
cri-o-1.19.4-2.rhaos4.6.gitea37eea.el7.x86_64.rpm SHA-256: 10b0d576b161f309ed53afc107d5da66b20ae6476df0b7ce923bb8ad6c2fc7ec
cri-o-debuginfo-1.19.4-2.rhaos4.6.gitea37eea.el7.x86_64.rpm SHA-256: 6b8b3de8f1cd1eca8e7d7811ea57f466cb84b34566c570ee7b944c6ce1c9e6b0
openshift-hyperkube-4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el7.x86_64.rpm SHA-256: e7a6a231ebb02d7f5a6475f1b8b4e19bb30f5faa5ee987332d7057c8b3ed5dac

Red Hat OpenShift Container Platform for Power 4.6 for RHEL 8

SRPM
cri-o-1.19.4-2.rhaos4.6.gitea37eea.el8.src.rpm SHA-256: 35ccddee8d8e1a82a410353121925eb3139dacd7fc8974cb9daee70c835ead29
openshift-4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el8.src.rpm SHA-256: e623d704267baf9d81c21cacf0912981d5247a2fb198ab269542997549d45755
ppc64le
cri-o-1.19.4-2.rhaos4.6.gitea37eea.el8.ppc64le.rpm SHA-256: a51298b6d78f442fb53054c89b6f461e56064b6e8fbfe697cbb50136cabd6fbc
cri-o-debuginfo-1.19.4-2.rhaos4.6.gitea37eea.el8.ppc64le.rpm SHA-256: 417c44bc171006569ba248b7d25e3bc535f02707362c81453419e376105cee9b
cri-o-debugsource-1.19.4-2.rhaos4.6.gitea37eea.el8.ppc64le.rpm SHA-256: 78f3ca0ba6ac760848c3dda75989fe2217cc33d1ba0ffd645103a593f3514be9
openshift-hyperkube-4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el8.ppc64le.rpm SHA-256: 11d35ae267427eaeda03c59093cd5f136fa1d38ecd1b37f5c420c810d22a0d3f

Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.6 for RHEL 8

SRPM
cri-o-1.19.4-2.rhaos4.6.gitea37eea.el8.src.rpm SHA-256: 35ccddee8d8e1a82a410353121925eb3139dacd7fc8974cb9daee70c835ead29
openshift-4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el8.src.rpm SHA-256: e623d704267baf9d81c21cacf0912981d5247a2fb198ab269542997549d45755
s390x
cri-o-1.19.4-2.rhaos4.6.gitea37eea.el8.s390x.rpm SHA-256: 7267b7d817ba0493f1b6c42343eb3fcd07e60400ebe84087b5b6bf5c23f90233
cri-o-debuginfo-1.19.4-2.rhaos4.6.gitea37eea.el8.s390x.rpm SHA-256: b49f3c711cf888426fdb9ff2e1a25520da5b054628a08491ddb026d3ce651a19
cri-o-debugsource-1.19.4-2.rhaos4.6.gitea37eea.el8.s390x.rpm SHA-256: 56c704b3092403e1eabff0387094505a59957493aaab6fbd8c44166b8484f68b
openshift-hyperkube-4.6.0-202109180038.p0.git.d5ed12c.assembly.stream.el8.s390x.rpm SHA-256: dfa39bbff03c83e06cba2d746aece23d07541fe34bc62d4dcc052a48cb41eb15

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

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