A flaw was found in the fabric8 kubernetes-client in version 4.2.0 and after. This flaw allows a malicious pod/container to cause applications using the fabric8 kubernetes-client `copy` command to extract files outside the working path. The highest threat from this vulnerability is to integrity and system availability. This has been fixed in kubernetes-client-4.13.2 kubernetes-client-5.0.2 kubernetes-client-4.11.2 kubernetes-client-4.7.2

The remote Red Hat Enterprise Linux CoreOS 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:1006 advisory.

  - golang: crypto/elliptic: incorrect operations on the P-224 curve (CVE-2021-3114)

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

  - fabric8-kubernetes-client: vulnerable to a path traversal leading to integrity and availability compromise     (CVE-2021-20218)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - A flaw was found in the fabric8 kubernetes-client in version 4.2.0 and after. This flaw allows a malicious
    pod/container to cause applications using the fabric8 kubernetes-client `copy` command to extract files
    outside the working path. The highest threat from this vulnerability is to integrity and system
    availability. This has been fixed in kubernetes-client-4.13.2 kubernetes-client-5.0.2 kubernetes-
    client-4.11.2 kubernetes-client-4.7.2 (CVE-2021-20218)

The remote Redhat Enterprise Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:1006 advisory.

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

    https://access.redhat.com/errata/RHSA-2021:1005

    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

    Security Fix(es):

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

    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.

    Bug Fix(es):

    * Placeholder bug for OCP 4.7.0 rpm release (BZ#1944016)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Type	Severity
312454	RHCOS 4 : OpenShift Container Platform 4.7.5 (RHSA-2021:1006)	Nessus	Red Hat Local Security Checks	Local	high
416606	SCA: security update for io.fabric8:kubernetes-client (GHSA-jwh2-ffg4-48xc)	Tenable Cloud Security	SCA Checks	Local	high
416606	SCA: security update for io.fabric8:kubernetes-client (GHSA-jwh2-ffg4-48xc)	Tenable Self-Hosted Container Security	SCA Checks	Local	high
148316	RHEL 7 / 8 : OpenShift Container Platform 4.7.5 (RHSA-2021:1006)	Nessus	Red Hat Local Security Checks	Local	high

Detections

Analytics

CVE-2021-20218

high

Tenable Plugins

high

high

high

high