rhsa-2021_1150
Vulnerability from csaf_redhat
Published
2021-04-20 18:22
Modified
2024-11-05 23:27
Summary
Red Hat Security Advisory: OpenShift Container Platform 4.7.7 security update

Notes

Topic
Red Hat OpenShift Container Platform release 4.7.7 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red Hat OpenShift Container Platform 4.7. 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): * containers/storage: DoS via malicious image (CVE-2021-20291) 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. This advisory contains the RPM packages for Red Hat OpenShift Container Platform 4.7.7. See the following advisory for the container images for this release: https://access.redhat.com/errata/RHBA-2021:1149 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
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.


To clipboard 

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        "text": "Red Hat OpenShift Container Platform release 4.7.7 is now available with\nupdates to packages and images that fix several bugs and add enhancements.\n\nThis release includes a security update for Red Hat OpenShift Container Platform 4.7.\n\nRed Hat Product Security has rated this update as having a security impact\nof Moderate. A Common Vulnerability Scoring System (CVSS) base score,\nwhich gives a detailed severity rating, is available for each vulnerability\nfrom the CVE link(s) in the References section.",
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        "text": "Red Hat OpenShift Container Platform is Red Hat\u0027s cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments.\n\nSecurity Fix(es):\n\n* containers/storage: DoS via malicious image (CVE-2021-20291)\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.\n\nThis advisory contains the RPM packages for Red Hat OpenShift Container\nPlatform 4.7.7. See the following advisory for the container images for\nthis release:\n\nhttps://access.redhat.com/errata/RHBA-2021:1149\n\nAll OpenShift Container Platform 4.7 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift Console\nor the CLI oc command. Instructions for upgrading a cluster are available\nat\nhttps://docs.openshift.com/container-platform/4.7/updating/updating-cluster\n-between-minor.html#understanding-upgrade-channels_updating-cluster-between\n-minor",
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  "vulnerabilities": [
    {
      "acknowledgments": [
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          "names": [
            "Aviv Sasson"
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          "organization": "Palo Alto Networks"
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      "cve": "CVE-2021-20291",
      "cwe": {
        "id": "CWE-667",
        "name": "Improper Locking"
      },
      "discovery_date": "2021-03-12T00:00:00+00:00",
      "ids": [
        {
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          "text": "1939485"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A deadlock vulnerability was found in `github.com/containers/storage`. When a container image is processed, each layer is unpacked using `tar`. If one of those layers is not a valid `tar` archive this causes an error leading to an unexpected situation where the code indefinitely waits for the tar unpacked stream, which never finishes. An attacker could use this vulnerability to craft a malicious image, which when downloaded and stored by an application using containers/storage, would then cause a deadlock leading to a Denial of Service (DoS).",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "containers/storage: DoS via malicious image",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "The vulnerability was first exposed in v1.23.8 of containers/storage (and subsequently fixed in v1.28.1) with this git commit [1].\n\n* In OpenShift Container Platform (OCP) only 4.7 contains a version of CRI-O (and openshift/ose-docker-builder) which uses a vulnerable version of containers/storage. Subsequently this has been addressed in OCP 4.7.7.\n\n* Red Hat Quay quay-builder-container is not affected because it uses a version of github.com/containers/storage earlier than v1.23.8\n\n* Red Hat Openshift Virtualization is not affected because all containers depending on github.com/containers/storage use a version earlier than v1.23.8\n\n* For Red Hat OpenStack Platform, because containers/storage is not directly used by the director-operator, no update will be provided at this time for the operator containers.\n\n[1] - https://github.com/containers/storage/blob/e9989a949a0d2c32fa82d3ff1076e33cfec58cb9/layers.go#L1332",
          "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"
        }
      ],
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          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1939485"
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          "url": "https://www.cve.org/CVERecord?id=CVE-2021-20291"
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          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-20291",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-20291"
        },
        {
          "category": "external",
          "summary": "https://unit42.paloaltonetworks.com/cve-2021-20291/",
          "url": "https://unit42.paloaltonetworks.com/cve-2021-20291/"
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      "release_date": "2021-04-01T00:00:00+00:00",
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          "date": "2021-04-20T18:22:36+00:00",
          "details": "For OpenShift Container Platform 4.7 see the following documentation, which\nwill be updated shortly for this release, for important instructions on how\nto upgrade your cluster and fully apply this asynchronous errata update:\n\nhttps://docs.openshift.com/container-platform/4.7/release_notes/ocp-4-7-release-notes.html\n\nDetails on how to access this content are available at\nhttps://docs.openshift.com/container-platform/4.7/updating/updating-cluster-cli.html",
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            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
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      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "containers/storage: DoS via malicious image"
    }
  ]
}


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Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.