RHSA-2020:5102 - Security Advisory

Topic

An update for jenkins-2-plugins is now available for Red Hat OpenShift Container Platform 3.11.

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.

Security Fix(es):

• jenkins-2-plugins/mailer: Missing hostname validation in Mailer Plugin could result in MITM (CVE-2020-2252)
• jenkins-2-plugins/blueocean: Path traversal vulnerability in Blue Ocean Plugin could allow to read arbitrary files (CVE-2020-2254)
• jenkins-2-plugins/blueocean: Blue Ocean Plugin does not perform permission checks in several HTTP endpoints implementing connection tests (CVE-2020-2255)

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

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/3.11/release_notes/ocp_3_11_release_notes.html

This update is available via the Red Hat Network. Details on how to use the
Red Hat Network to apply this update are available at
https://access.redhat.com/articles/11258.

Affected Products

• Red Hat OpenShift Container Platform 3.11 x86_64
• Red Hat OpenShift Container Platform for Power 3.11 ppc64le

Fixes

• BZ - 1880454 - CVE-2020-2252 jenkins-2-plugins/mailer: Missing hostname validation in Mailer Plugin could result in MITM
• BZ - 1880456 - CVE-2020-2254 jenkins-2-plugins/blueocean: Path traversal vulnerability in Blue Ocean Plugin could allow to read arbitrary files
• BZ - 1880460 - CVE-2020-2255 jenkins-2-plugins/blueocean: Blue Ocean Plugin does not perform permission checks in several HTTP endpoints implementing connection tests.

CVEs

• CVE-2020-2252
• CVE-2020-2254
• CVE-2020-2255

References

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