Issued:
2021-10-18
Updated:
2021-10-18

RHSA-2021:3759 - Moderate: OpenShift Container Platform 4.9.0 bug fix and security update

Synopsis

Moderate: OpenShift Container Platform 4.9.0 bug fix and security update

Type/Severity

Security Advisory Moderate

Topic

Red Hat OpenShift Container Platform release 4.9.0 is now available with updates to packages and images that fix several bugs and add enhancements.

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 container images for Red Hat OpenShift Container Platform 4.9.0. See the following advisory for the RPM packages for this release:

https://access.redhat.com/errata/RHSA-2021:3758

Security Fix(es):

  • gogo/protobuf: plugin/unmarshal/unmarshal.go lacks certain index validation (CVE-2021-3121)

  • sanitize-html: improper handling of internationalized domain name (IDN) can lead to bypass hostname whitelist validation (CVE-2021-26539)

  • sanitize-html: improper validation of hostnames set by the "allowedIframeHostnames" option can lead to bypass hostname whitelist for iframe element (CVE-2021-26540)

  • nodejs-is-svg: ReDoS via malicious string (CVE-2021-28092)

  • nodejs-is-svg: Regular expression denial of service if the application is provided and checks a crafted invalid SVG string (CVE-2021-29059)

  • golang: net/http: panic in ReadRequest and ReadResponse when reading a very large header (CVE-2021-31525)

  • helm: information disclosure vulnerability (CVE-2021-32690)

  • golang: x/net/html: infinite loop in ParseFragment (CVE-2021-33194)

  • golang: net: lookup functions may return invalid host names (CVE-2021-33195)

  • golang: net/http/httputil: ReverseProxy forwards connection headers if first one is empty (CVE-2021-33197)

  • golang: math/big.Rat: may cause a panic or an unrecoverable fatal error if passed inputs with very large exponents (CVE-2021-33198)

  • golang: crypto/tls: certificate of wrong type is causing TLS client to panic (CVE-2021-34558)

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.

Additional Changes:

This update also fixes several bugs and adds various enhancements. Documentation for these changes is available from the Release Notes document linked to in the References section.

You may download the oc tool and use it to inspect release image metadata as follows:

(For x86_64 architecture)

$ oc adm release info quay.io/openshift-release-dev/ocp-release:4.9.0-x86_64

The image digest is sha256:d262a12de33125907e0b75a5ea34301dd27c4a6bde8295f6b922411f07623e61

(For s390x architecture)

$ oc adm release info quay.io/openshift-release-dev/ocp-release:4.9.0-s390x

The image digest is sha256:d262a12de33125907e0b75a5ea34301dd27c4a6bde8295f6b922411f07623e61

(For ppc64le architecture)

$ oc adm release info quay.io/openshift-release-dev/ocp-release:4.9.0-ppc64le

The image digest is sha256:d262a12de33125907e0b75a5ea34301dd27c4a6bde8295f6b922411f07623e61

All OpenShift Container Platform 4.9 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/4.9/updating/updating-cluster-between-minor.html#understanding-upgrade-channels_updating-cluster-between-minor

Solution

For OpenShift Container Platform 4.9 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/4.9/release_notes/ocp-4-9-release-notes.html

Details on how to access this content are available at https://docs.openshift.com/container-platform/4.9/updating/updating-cluster-cli.html

Affected Products

ProductVersionArch
Red Hat OpenShift Container Platform4.9x86_64
Red Hat OpenShift Container Platform for Power4.9ppc64le
Red Hat OpenShift Container Platform for IBM Z and LinuxONE4.9s390x
Red Hat OpenShift Container Platform for ARM 644.9aarch64

Fixes

CVEs

References

Additional information