RHSA-2020:3519 - Security Advisory

Topic

An update for jenkins and openshift is now available for Red Hat OpenShift Container Platform 4.5.

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.

Jenkins is a continuous integration server that monitors executions of repeated jobs, such as building a software project or jobs run by cron.

Security Fix(es):

• jenkins: Stored XSS vulnerability in job build time trend (CVE-2020-2220)
• jenkins: Stored XSS vulnerability in upstream cause (CVE-2020-2221)
• jenkins: Stored XSS vulnerability in 'keep forever' badge icons (CVE-2020-2222)
• jenkins: Stored XSS vulnerability in console links (CVE-2020-2223)
• kubernetes: Node disk DOS by writing to container /etc/hosts (CVE-2020-8557)

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 4.5 see the following documentation, which
will be updated shortly for release 4.5.7, 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 - 1835977 - CVE-2020-8557 kubernetes: Node disk DOS by writing to container /etc/hosts
• BZ - 1857425 - CVE-2020-2220 jenkins: Stored XSS vulnerability in job build time trend
• BZ - 1857427 - CVE-2020-2221 jenkins: Stored XSS vulnerability in upstream cause
• BZ - 1857431 - CVE-2020-2222 jenkins: Stored XSS vulnerability in 'keep forever' badge icons
• BZ - 1857433 - CVE-2020-2223 jenkins: Stored XSS vulnerability in console links

CVEs

• CVE-2020-2220
• CVE-2020-2221
• CVE-2020-2222
• CVE-2020-2223
• CVE-2020-8557

References

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