archive/zip: malformed archive may cause panic or memory exhaustion (incomplete fix of CVE-2021-33196)
CVE: CVE-2021-39293
Component: golang
CWE: CWE-400
Severity: Moderate
CVSS v3: 7.5/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Release date: 2021-08-18T00:00:00+00:00

A vulnerability was found in archive/zip of the Go standard library. Applications written in Go can panic or potentially exhaust system memory when parsing malformed ZIP files. An attacker capable of submitting a crafted ZIP file to a Go application using archive/zip to process that file could cause a denial of service via memory exhaustion or panic. This particular flaw is an incomplete fix for a previous flaw.

Statement: * In OpenShift Container Platform, multiple components are written in Go and use archive/zip from the standard library. However, all such components are short lived client side tools, not long lived server side executables. As the maximum impact of this vulnerability is a denial of service in client utilities, this vulnerability is rated Low for OpenShift Container Platform.

* This flaw is out of support scope for Red Hat Enterprise Linux 7. For more information about Red Hat Enterprise Linux support scope, please see https://access.redhat.com/support/policy/updates/errata

* Because Service Telemetry Framework1.2 will be retiring soon and the flaw's impact is lower, no update will be provided at this time for STF1.2's smart-gateway-container and sg-core-container.

Remediation:
See the Red Hat OpenShift Container Platform 4.6 documentation at:
https://access.redhat.com/documentation/en-us/openshift_container_platform/4.6/html/serverless/index
See the Red Hat OpenShift Container Platform 4.7 documentation at:
https://access.redhat.com/documentation/en-us/openshift_container_platform/4.7/html/serverless/index
See the Red Hat OpenShift Container Platform 4.8 documentation at:
https://access.redhat.com/documentation/en-us/openshift_container_platform/4.8/html/serverless/index
See the Red Hat OpenShift Container Platform 4.9 documentation at:
https://access.redhat.com/documentation/en-us/openshift_container_platform/4.9/html/serverless/index
See the Red Hat OpenShift Container Platform 4.6 documentation at:
https://access.redhat.com/documentation/en-us/openshift_container_platform/4.6/html/serverless/index
See the Red Hat OpenShift Container Platform 4.7 documentation at:
https://access.redhat.com/documentation/en-us/openshift_container_platform/4.7/html/serverless/index
See the Red Hat OpenShift Container Platform 4.8 documentation at:
https://access.redhat.com/documentation/en-us/openshift_container_platform/4.8/html/serverless/index
See the Red Hat OpenShift Container Platform 4.9 documentation at:
https://access.redhat.com/documentation/en-us/openshift_container_platform/4.9/html/serverless/index
To take advantage of these new features, fixes and changes, please upgrade Red Hat Advanced Cluster Security for Kubernetes to version 3.67.
For details on how to install and use MTC, refer to:

https://docs.openshift.com/container-platform/latest/migration_toolkit_for_containers/installing-mtc.html
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