RHSA-2021:2431 - Security Advisory

Topic

Red Hat OpenShift Container Platform release 4.5.41 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 4.5.41. See the following advisory for the container images for
this release:

https://access.redhat.com/errata/RHSA-2021:2430

Security Fix(es):

• jenkins-2-plugins/config-file-provider: Does not configure its XML parser to prevent XML external entity (XXE) attacks. (CVE-2021-21642)
• jetty: local temporary directory hijacking vulnerability (CVE-2020-27216)
• jetty: buffer not correctly recycled in Gzip Request inflation (CVE-2020-27218)
• jetty: request containing multiple Accept headers with a large number of "quality" parameters may lead to DoS (CVE-2020-27223)
• jenkins-2-plugins/config-file-provider: Does not correctly perform permission checks in several HTTP endpoints. (CVE-2021-21643)
• jenkins-2-plugins/config-file-provider: does not require POST requests for an HTTP endpoint, resulting in a cross-site request forgery (CSRF) vulnerability. (CVE-2021-21644)
• jenkins-2-plugins/config-file-provider: Does not perform permission checks in several HTTP endpoints. (CVE-2021-21645)

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.

Bug Fix(es):

• Placeholder bug for OCP 4.5.41 rpm release (BZ#1972114)

Solution

For OpenShift Container Platform 4.5 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/4.5/release_notes/ocp-4-5-release-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

Affected Products

• Red Hat OpenShift Container Platform 4.5 for RHEL 8 x86_64
• Red Hat OpenShift Container Platform 4.5 for RHEL 7 x86_64
• Red Hat OpenShift Container Platform for Power 4.5 for RHEL 8 ppc64le
• Red Hat OpenShift Container Platform for Power 4.5 for RHEL 7 ppc64le
• Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.5 for RHEL 8 s390x
• Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.5 for RHEL 7 s390x

Fixes

• BZ - 1891132 - CVE-2020-27216 jetty: local temporary directory hijacking vulnerability
• BZ - 1902826 - CVE-2020-27218 jetty: buffer not correctly recycled in Gzip Request inflation
• BZ - 1934116 - CVE-2020-27223 jetty: request containing multiple Accept headers with a large number of "quality" parameters may lead to DoS
• BZ - 1952146 - CVE-2021-21642 jenkins-2-plugins/config-file-provider: Does not configure its XML parser to prevent XML external entity (XXE) attacks.
• BZ - 1952148 - CVE-2021-21643 jenkins-2-plugins/config-file-provider: Does not correctly perform permission checks in several HTTP endpoints.
• BZ - 1952151 - CVE-2021-21644 jenkins-2-plugins/config-file-provider: does not require POST requests for an HTTP endpoint, resulting in a cross-site request forgery (CSRF) vulnerability.
• BZ - 1952152 - CVE-2021-21645 jenkins-2-plugins/config-file-provider: Does not perform permission checks in several HTTP endpoints.
• BZ - 1972114 - Placeholder bug for OCP 4.5.z rpm release

CVEs

• CVE-2020-27216
• CVE-2020-27218
• CVE-2020-27223
• CVE-2021-21642
• CVE-2021-21643
• CVE-2021-21644
• CVE-2021-21645

References

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