Improper input validation in the Kubernetes API server in versions v1.0-1.12 and versions prior to v1.13.12, v1.14.8, v1.15.5, and v1.16.2 allows authorized users to send malicious YAML or JSON payloads, causing the API server to consume excessive CPU or memory, potentially crashing and becoming unavailable. Prior to v1.14.0, default RBAC policy authorized anonymous users to submit requests that could trigger this vulnerability. Clusters upgraded from a version prior to v1.14.0 keep the more permissive policy by default for backwards compatibility.

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2019-4816 advisory.

    - [CVE-2019-16276] Kubernetes Vulnerabilities Allow Authentication Bypass, DoS
    - [CVE-2019-16276] Support patching flannel/dashboard on upgrade
    - [CVE-2019-16276] Support patching etcd on upgrade
    - [CVE-2019-16276] while upgrading a cluster patch the coredns image
    - CVE-2019-16276 : Update flannel , etcd coredns and dashboard images.

Tenable has extracted the preceding description block directly from the Oracle 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 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2020:2870 advisory.

    Red Hat OpenShift Service Mesh is Red Hat's distribution of the Istio service mesh project, tailored for     installation into an on-premise OpenShift Container Platform installation.

    Security Fix(es):

    * kubernetes: YAML parsing vulnerable to Billion Laughs attack, allowing for remote denial of service     (CVE-2019-11253)

    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 this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2020:2863 advisory.

    Red Hat OpenShift Service Mesh is Red Hat's distribution of the Istio service mesh project, tailored for     installation into an on-premise OpenShift Container Platform installation.

    Security Fix(es):

    * kubernetes: YAML parsing vulnerable to Billion Laughs attack, allowing for remote denial of service     (CVE-2019-11253)

    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 this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:2861 advisory.

    Red Hat OpenShift Service Mesh is Red Hat's distribution of the Istio service mesh project, tailored for     installation into an on-premise OpenShift Container Platform installation.

    Security Fix(es):

    * kubernetes: YAML parsing vulnerable to Billion Laughs attack, allowing for remote denial of service     (CVE-2019-11253)

    * grafana: SSRF incorrect access control vulnerability allows unauthenticated users to make grafana send     HTTP requests to any URL (CVE-2020-13379)

    * npm-serialize-javascript: allows remote attackers to inject arbitrary code via the function     deleteFunctions within index.js (CVE-2020-7660)

    * npmjs-websocket-extensions: ReDoS vulnerability in Sec-WebSocket-Extensions parser (CVE-2020-7662)

    * grafana: XSS annotation popup vulnerability (CVE-2020-12052)

    * grafana: XSS via column.title or cellLinkTooltip (CVE-2020-12245)

    * grafana: XSS via the OpenTSDB datasource (CVE-2020-13430)

    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 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:2796 advisory.

    Red Hat OpenShift Service Mesh is Red Hat's distribution of the Istio service mesh project, tailored for     installation into an on-premise OpenShift Container Platform installation.

    Security Fix(es):

    * kubernetes: YAML parsing vulnerable to Billion Laughs attack, allowing for remote denial of service     (CVE-2019-11253)

    * grafana: SSRF incorrect access control vulnerability allows unauthenticated users to make grafana send     HTTP requests to any URL (CVE-2020-13379)

    * npm-serialize-javascript: XSS via unsafe characters in serialized regular expressions (CVE-2019-16769)

    * npm-serialize-javascript: allows remote attackers to inject arbitrary code via the function     deleteFunctions within index.js (CVE-2020-7660)

    * npmjs-websocket-extensions: ReDoS vulnerability in Sec-WebSocket-Extensions parser (CVE-2020-7662)

    * grafana: XSS annotation popup vulnerability (CVE-2020-12052)

    * grafana: XSS via column.title or cellLinkTooltip (CVE-2020-12245)

    * grafana: XSS via the OpenTSDB datasource (CVE-2020-13430)

    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 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2020:2795 advisory.

    Red Hat OpenShift Service Mesh is Red Hat's distribution of the Istio service mesh project, tailored for     installation into an on-premise OpenShift Container Platform installation.

    Security Fix(es):

    * kubernetes: YAML parsing vulnerable to Billion Laughs attack, allowing for remote denial of service     (CVE-2019-11253)

    * openshift-service-mesh/istio-rhel8-operator: control plane can deploy gateway image to any namespace     (CVE-2020-14306)

    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 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2020:2799 advisory.

    Red Hat OpenShift Service Mesh is Red Hat's distribution of the Istio service mesh project, tailored for     installation into an on-premise OpenShift Container Platform installation.

    Security Fix(es):

    * kubernetes: YAML parsing vulnerable to Billion Laughs attack, allowing for remote denial of service     (CVE-2019-11253)

    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 this issue but has instead relied only on the application's self-reported version number.

An update of the kubernetes package has been released.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:3905 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 atomic-openshift RPM package for Red Hat OpenShift Container Platform 3.11.154.

    Security Fix(es):

    * kubernetes: YAML parsing vulnerable to Billion Laughs attack, allowing for remote denial of service     (CVE-2019-11253)

    * kubernetes: `kubectl cp` allows for arbitrary file write via double symlinks (CVE-2019-11251)

    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-2019:3811 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 atomic-openshift RPM package for Red Hat OpenShift Container Platform 3.9.102.

    Security Fix(es):

    * kubernetes: YAML parsing vulnerable to Billion Laughs attack, allowing for remote denial of service     (CVE-2019-11253)

    * atomic-openshift: OpenShift builds don't verify SSH Host Keys for the Git repository (CVE-2019-10150)

    * kubernetes: Incomplete fixes for CVE-2019-1002101 and CVE-2019-11246, kubectl cp potential directory     traversal (CVE-2019-11249)

    * kubernetes: `kubectl cp` allows for arbitrary file write via double symlinks (CVE-2019-11251)

    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-2019:3239 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: YAML parsing vulnerable to Billion Laughs attack, allowing for remote denial of service     (CVE-2019-11253)

    * kubernetes: Incomplete fixes for CVE-2019-1002101 and CVE-2019-11246, kubectl cp potential directory     traversal (CVE-2019-11249)

    * kube-apiserver: DoS with crafted patch of type json-patch (CVE-2019-1002100)

    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 / 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2019:3132 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 openshift RPM package for Red Hat     OpenShift Container Platform 4.1.20.

    Security Fix(es):

    * kubernetes: YAML parsing vulnerable to Billion Laughs attack, allowing for remote denial of service     (CVE-2019-11253)

    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 this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
180704	Oracle Linux 7 : kubernetes (ELSA-2019-4816)	Nessus	Oracle Linux Local Security Checks	high
138187	RHEL 8 : Red Hat OpenShift Service Mesh 1.0 servicemesh-cni (RHSA-2020:2870)	Nessus	Red Hat Local Security Checks	high
138186	RHEL 8 : Red Hat OpenShift Service Mesh 1.0 servicemesh-prometheus (RHSA-2020:2863)	Nessus	Red Hat Local Security Checks	high
138178	RHEL 8 : Red Hat OpenShift Service Mesh 1.0 servicemesh-grafana (RHSA-2020:2861)	Nessus	Red Hat Local Security Checks	high
138031	RHEL 8 : Red Hat OpenShift Service Mesh servicemesh-grafana (RHSA-2020:2796)	Nessus	Red Hat Local Security Checks	high
138028	RHEL 8 : Red Hat OpenShift Service Mesh 1.1 servicemesh-operator (RHSA-2020:2795)	Nessus	Red Hat Local Security Checks	high
138027	RHEL 8 : Red Hat OpenShift Service Mesh servicemesh-cni (RHSA-2020:2799)	Nessus	Red Hat Local Security Checks	high
132982	Photon OS 1.0: Kubernetes PHSA-2020-1.0-0264	Nessus	PhotonOS Local Security Checks	high
131153	RHEL 7 : OpenShift Container Platform 3.11 atomic-openshift (RHSA-2019:3905)	Nessus	Red Hat Local Security Checks	medium
130747	RHEL 7 : OpenShift Container Platform 3.9 atomic-openshift (RHSA-2019:3811)	Nessus	Red Hat Local Security Checks	medium
130384	RHEL 7 : OpenShift Container Platform 3.10 atomic-openshift (RHSA-2019:3239)	Nessus	Red Hat Local Security Checks	medium
130125	Photon OS 3.0: Kubernetes PHSA-2019-3.0-0031	Nessus	PhotonOS Local Security Checks	high
129996	RHEL 7 / 8 : OpenShift Container Platform 4.1.20 openshift (RHSA-2019:3132)	Nessus	Red Hat Local Security Checks	high

Detections

Analytics

CVE-2019-11253

high

Tenable Plugins

high

high

high

high

high

high

high

high

medium

medium

medium

high

high