RHSA-2020:4297 - Security Advisory

Topic

An update for jenkins-2-plugins, openshift-clients, podman, runc, and skopeo 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

The podman tool manages pods, container images, and containers. It is part of the libpod library, which is for applications that use container pods. Container pods is a concept in Kubernetes.

The runC tool is a lightweight, portable implementation of the Open Container Format (OCF) that provides container runtime.

The skopeo command lets you inspect images from container image registries, get images and image layers, and use signatures to create and verify files.

Security Fix(es):

• jenkins-jira-plugin: plugin information disclosure (CVE-2019-16541)
• 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)
• kubernetes: Docker config secrets leaked when file is malformed and loglevel >= 4 (CVE-2020-8564)
• golang.org/x/text: possibility to trigger an infinite loop in encoding/unicode could lead to crash (CVE-2020-14040)
• podman: environment variables leak between containers when started via Varlink or Docker-compatible REST API (CVE-2020-14370)
• golang: ReadUvarint and ReadVarint can read an unlimited number of bytes from invalid inputs (CVE-2020-16845)

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 - 1819663 - CVE-2019-16541 jenkins-jira-plugin: plugin information disclosure
• BZ - 1853652 - CVE-2020-14040 golang.org/x/text: possibility to trigger an infinite loop in encoding/unicode could lead to crash
• BZ - 1867099 - CVE-2020-16845 golang: ReadUvarint and ReadVarint can read an unlimited number of bytes from invalid inputs
• BZ - 1874268 - CVE-2020-14370 podman: environment variables leak between containers when started via Varlink or Docker-compatible REST API
• 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.
• BZ - 1886637 - CVE-2020-8564 kubernetes: Docker config secrets leaked when file is malformed and loglevel >= 4

CVEs

• CVE-2019-16541
• CVE-2020-2252
• CVE-2020-2254
• CVE-2020-2255
• CVE-2020-8564
• CVE-2020-14040
• CVE-2020-14370
• CVE-2020-15586
• CVE-2020-16845

References

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