rhsa-2022_7955
Vulnerability from csaf_redhat
Published
2022-11-15 12:38
Modified
2024-11-25 12:40
Summary
Red Hat Security Advisory: skopeo security and bug fix update

Notes

Topic
An update for skopeo is now available for Red Hat Enterprise Linux 9. 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
The skopeo command lets you inspect images from container image registries, get images and image layers, and use signatures to create and verify files. Security Fix(es): * containers/storage: DoS via malicious image (CVE-2021-20291) * golang: math/big.Rat: may cause a panic or an unrecoverable fatal error if passed inputs with very large exponents (CVE-2021-33198) 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. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.1 Release Notes linked from 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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        "text": "An update for skopeo is now available for Red Hat Enterprise Linux 9.\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.",
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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",
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        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1939485"
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      ],
      "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://access.redhat.com/security/cve/CVE-2021-20291"
        },
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          "category": "external",
          "summary": "RHBZ#1939485",
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        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2021-20291",
          "url": "https://www.cve.org/CVERecord?id=CVE-2021-20291"
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        {
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        },
        {
          "category": "external",
          "summary": "https://unit42.paloaltonetworks.com/cve-2021-20291/",
          "url": "https://unit42.paloaltonetworks.com/cve-2021-20291/"
        }
      ],
      "release_date": "2021-04-01T00:00:00+00:00",
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          "date": "2022-11-15T12:38:32+00:00",
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      "scores": [
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            "attackComplexity": "LOW",
            "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",
            "version": "3.1"
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      "title": "containers/storage: DoS via malicious image"
    },
    {
      "cve": "CVE-2021-33198",
      "cwe": {
        "id": "CWE-400",
        "name": "Uncontrolled Resource Consumption"
      },
      "discovery_date": "2021-08-02T00:00:00+00:00",
      "ids": [
        {
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          "text": "1989575"
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      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in Go, where it attempts to allocate excessive memory. This issue may cause panic or unrecoverable fatal error if passed inputs with very large exponents. The highest threat from this vulnerability is to system availability.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "golang: math/big.Rat: may cause a panic or an unrecoverable fatal error if passed inputs with very large exponents",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "* Since OpenShift Container Platform 3.11 is in Maintenance Phase of the support, only Important and Critical severity vulnerabilities will be addressed at this time.\n\n* In Service Telemetry Framework, because the flaw has a lower impact and the package is not directly used by STF, no updates will be provided at this time for the STF containers.",
          "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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            "userInteraction": "NONE",
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      "threats": [
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          "details": "Moderate"
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      ],
      "title": "golang: math/big.Rat: may cause a panic or an unrecoverable fatal error if passed inputs with very large exponents"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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