RHSA-2021:2499 - Security Advisory

Topic

An update for cri-o, jenkins, openshift-clients, and openshift-kuryr is now available for Red Hat OpenShift Container Platform 4.6.

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.

This advisory contains the RPM packages for Red Hat OpenShift Container
Platform 4.6.36. See the following advisory for the container images for
this release:

https://access.redhat.com/errata/RHBA-2021:2498

Security Fix(es):

• 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)

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 4.6 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 - 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

CVEs

• CVE-2020-27216
• CVE-2020-27218
• CVE-2020-27223

References

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