RHSA-2021:2122 - Security Advisory

Topic

Red Hat OpenShift Container Platform release 4.7.13 is now available with updates to packages and images that fix several bugs.

This release includes a security update for Red Hat OpenShift Container Platform 4.7.

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 4.7.13. See the following advisory for the container images for this release:

https://access.redhat.com/errata/RHSA-2021:2121

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)
• golang: data race in certain net/http servers including ReverseProxy can lead to DoS (CVE-2020-15586)
• golang: ReadUvarint and ReadVarint can read an unlimited number of bytes from invalid inputs (CVE-2020-16845)
• 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.

All OpenShift Container Platform 4.7 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift Console or the CLI oc command. Instructions for upgrading a cluster are available at https://docs.openshift.com/container-platform/4.7/updating/updating-cluster-between-minor.html#understanding-upgrade-channels_updating-cluster-between-minor

Solution

For OpenShift Container Platform 4.7 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/4.7/release_notes/ocp-4-7-release-notes.html

Details on how to access this content are available at
https://docs.openshift.com/container-platform/4.7/updating/updating-cluster-cli.html

Affected Products

• Red Hat OpenShift Container Platform 4.7 for RHEL 8 x86_64
• Red Hat OpenShift Container Platform 4.7 for RHEL 7 x86_64
• Red Hat OpenShift Container Platform for Power 4.7 for RHEL 8 ppc64le
• Red Hat OpenShift Container Platform for IBM Z and LinuxONE 4.7 for RHEL 8 s390x

Fixes

• BZ - 1856953 - CVE-2020-15586 golang: data race in certain net/http servers including ReverseProxy can lead to DoS
• BZ - 1867099 - CVE-2020-16845 golang: ReadUvarint and ReadVarint can read an unlimited number of bytes from invalid inputs
• 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 - 1964770 - Placeholder bug for OCP 4.7.0 rpm release

CVEs

• CVE-2020-15586
• CVE-2020-16845
• CVE-2021-21642
• CVE-2021-21643
• CVE-2021-21644
• CVE-2021-21645

References

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