The Kubernetes API Server component in versions 1.1-1.14, and versions prior to 1.15.10, 1.16.7 and 1.17.3 allows an authorized user who sends malicious YAML payloads to cause the kube-apiserver to consume excessive CPU cycles while parsing YAML.

The remote Oracle Linux 7 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2020-5653 advisory.

    - [CVE-2019-11254] kube-apiserver Denial of Service vulnerability from malicious YAML payloads
    - Golang CVE-2019-16276
    - Golang CVE-2019-16276

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

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

The version of Kubernetes installed on the remote host is a version prior to 1.13.10, or 1.14.x prior to 1.14.6, or 1.15.x prior to 1.15.3. It is, therefore, affected by a denial of service vulnerability

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

The remote Redhat Enterprise Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:2413 advisory.

    Red Hat OpenShift Container Platform is Red Hat's cloud computing     Kubernetes application platform solution designed for on-premise or private     cloud deployments.

    Security Fix(es):

    * kubernetes: Denial of service in API server via crafted YAML payloads by authorized users     (CVE-2019-11254)

    * kubernetes: node localhost services reachable via martian packets (CVE-2020-8558)

    * proglottis/gpgme: Use-after-free in GPGME bindings during container image pull (CVE-2020-8945)

    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.

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.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:2479 advisory.

    OpenShift Enterprise by Red Hat is the company's cloud computing Platform-as-a-Service (PaaS) solution     designed for on-premise or private cloud deployments.

    Security Fix(es):

    * libseccomp-golang: mishandling of multiple argument rules leading to a bypass of intended access     restrictions (CVE-2017-18367)

    * kubernetes: Denial of service in API server via crafted YAML payloads by authorized users     (CVE-2019-11254)

    * kubernetes: Server side request forgery (SSRF) in kube-controller-manager allows users to leak secret     information (CVE-2020-8555)

    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.

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	Severity
180948	Oracle Linux 7 : olcne / kubernetes (ELSA-2020-5653)	Nessus	Oracle Linux Local Security Checks	medium
140401	Kubernetes < 1.15.10 / 1.16.x < 1.16.7 / 1.17.x < 1.17.3 DoS	Nessus	Misc.	medium
138387	RHEL 7 / 8 : OpenShift Container Platform 4.5 (RHSA-2020:2413)	Nessus	Red Hat Local Security Checks	high
137668	RHEL 7 : OpenShift Container Platform 3.11 atomic-openshift (RHSA-2020:2479)	Nessus	Red Hat Local Security Checks	high

Detections

Analytics

CVE-2019-11254

medium

Tenable Plugins

medium

medium

high

high