rhsa-2020_2926
Vulnerability from csaf_redhat
Published
2020-07-21 10:42
Modified
2024-11-22 15:12
Summary
Red Hat Security Advisory: OpenShift Container Platform 4.4.13 openshift-enterprise-hyperkube-container security update

Notes

Topic
An update for openshift-enterprise-hyperkube-container is now available for Red Hat OpenShift Container Platform 4.4. 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.
Details
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: node localhost services are reachable via martian packets (CVE-2020-8558) 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.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.


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{
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      "text": "Moderate"
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    "category": "csaf_security_advisory",
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    "distribution": {
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    "lang": "en",
    "notes": [
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        "category": "summary",
        "text": "An update for openshift-enterprise-hyperkube-container is now available for Red Hat OpenShift Container Platform 4.4.\n\nRed 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.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "Red Hat OpenShift Container Platform is Red Hat\u0027s cloud computing\nKubernetes application platform solution designed for on-premise or private\ncloud deployments.\n\nSecurity Fix(es):\n\n* kubernetes: node localhost services are reachable via martian packets (CVE-2020-8558)\n\nFor 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.",
        "title": "Details"
      },
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        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
        "title": "Terms of Use"
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    "title": "Red Hat Security Advisory: OpenShift Container Platform 4.4.13 openshift-enterprise-hyperkube-container security update",
    "tracking": {
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  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "the Kubernetes Product Security Committee"
          ]
        },
        {
          "names": [
            "Yuval Avrahami",
            "Ariel Zelivansky"
          ],
          "organization": "Palo Alto Networks",
          "summary": "Acknowledged by upstream."
        },
        {
          "names": [
            "J\u00e1nos K\u00f6v\u00e9r"
          ],
          "organization": "Ericsson",
          "summary": "Acknowledged by upstream."
        },
        {
          "names": [
            "Rory McCune"
          ],
          "organization": "NCC Group",
          "summary": "Acknowledged by upstream."
        }
      ],
      "cve": "CVE-2020-8558",
      "cwe": {
        "id": "CWE-300",
        "name": "Channel Accessible by Non-Endpoint"
      },
      "discovery_date": "2020-05-29T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1843358"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Kubernetes that allows attackers on adjacent networks to reach services exposed on localhost ports, previously thought to be unreachable. This flaw allows an attacker to gain privileges or access confidential information for any services listening on localhost ports that are not protected by authentication.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kubernetes: node localhost services reachable via martian packets",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "OpenShift Container Platform does not expose the API server on a localhost port without authentication. The only service exposed on a localhost port not protected by authentication is Metrics, which exposes some cluster metadata.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
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          "7Server-RH7-RHOSE-4.4:openshift4/ose-hyperkube@sha256:d36003d5b5831484297c42496d40345e453a1a5c04af665480fdc52bb5273ffa_s390x",
          "7Server-RH7-RHOSE-4.4:openshift4/ose-hyperkube@sha256:d8bf95b1f24d108406cd1c464b9fcd1319048e78d41d1d15dc4140be0b94d04f_amd64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2020-8558"
        },
        {
          "category": "external",
          "summary": "RHBZ#1843358",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1843358"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2020-8558",
          "url": "https://www.cve.org/CVERecord?id=CVE-2020-8558"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-8558",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-8558"
        },
        {
          "category": "external",
          "summary": "https://groups.google.com/g/kubernetes-security-announce/c/B1VegbBDMTE",
          "url": "https://groups.google.com/g/kubernetes-security-announce/c/B1VegbBDMTE"
        }
      ],
      "release_date": "2020-07-08T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2020-07-21T10:42:38+00:00",
          "details": "For OpenShift Container Platform 4.4 see the following documentation, which\nwill be updated shortly for release 4.4.13, for important instructions on\nhow to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.openshift.com/container-platform/4.4/release_notes/ocp-4-4-release-notes.html\n\nDetails on how to access this content are available at\nhttps://docs.openshift.com/container-platform/4.4/updating/updating-cluster-cli.html.",
          "product_ids": [
            "7Server-RH7-RHOSE-4.4:openshift4/ose-hyperkube@sha256:992b2cdf17c868f6a668d899ac06a60b696535ee70ec0e31efd17fe63a9130dd_ppc64le",
            "7Server-RH7-RHOSE-4.4:openshift4/ose-hyperkube@sha256:d36003d5b5831484297c42496d40345e453a1a5c04af665480fdc52bb5273ffa_s390x",
            "7Server-RH7-RHOSE-4.4:openshift4/ose-hyperkube@sha256:d8bf95b1f24d108406cd1c464b9fcd1319048e78d41d1d15dc4140be0b94d04f_amd64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2020:2926"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "7Server-RH7-RHOSE-4.4:openshift4/ose-hyperkube@sha256:992b2cdf17c868f6a668d899ac06a60b696535ee70ec0e31efd17fe63a9130dd_ppc64le",
            "7Server-RH7-RHOSE-4.4:openshift4/ose-hyperkube@sha256:d36003d5b5831484297c42496d40345e453a1a5c04af665480fdc52bb5273ffa_s390x",
            "7Server-RH7-RHOSE-4.4:openshift4/ose-hyperkube@sha256:d8bf95b1f24d108406cd1c464b9fcd1319048e78d41d1d15dc4140be0b94d04f_amd64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "kubernetes: node localhost services reachable via martian packets"
    }
  ]
}


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