rhsa-2021_1407
Vulnerability from csaf_redhat
Published
2021-04-27 16:22
Modified
2024-11-05 23:30
Summary
Red Hat Security Advisory: etcd security update

Notes

Topic
An update for etcd is now available for Red Hat Enterprise Linux 7 Extras. 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 etcd packages provide a highly available key-value store for shared configuration. Security Fix(es): * etcd: Large slice causes panic in decodeRecord method (CVE-2020-15106) * etcd: DoS in wal/wal.go (CVE-2020-15112) 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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          "text": "etcd: Large slice causes panic in decodeRecord method",
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          "text": "* In Red Hat OpenShift Container Platform (RHOCP), the affected components are behind OpenShift OAuth authentication. This restricts access to the vulnerable etcd to authenticated users only.\n* In Red Hat OpenStack Platform (RHOSP), the use of etcd is limited to the internal API network, which is not accessible to OpenStack tenants.\n\nThe security impact for these products is therefore rated as Low.",
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          "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.",
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            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
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          "details": "Moderate"
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      "title": "etcd: Large slice causes panic in decodeRecord method"
    },
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        {
          "category": "description",
          "text": "A flaw was found in etcd, where it is possible to have an entry index greater than the number of entries in the ReadAll method in wal/wal.go. This can cause issues when WAL entries are being read during consensus, as an arbitrary etcd consensus participant can go down from a runtime panic when reading the entry. The highest threat from this vulnerability is to system availability.",
          "title": "Vulnerability description"
        },
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          "text": "etcd: DoS in wal/wal.go",
          "title": "Vulnerability summary"
        },
        {
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          "text": "In Red Hat OpenShift Container Platform (RHOCP), the affected components are behind OpenShift OAuth authentication. This restricts access to the vulnerable etcd to authenticated users only, therefore the impact of this vulnerability is Low.\nA similar access restriction is in place in Red Hat OpenStack Platform (RHOSP) as etcd is limited to use within the internal API network, which is not accessible to any OpenStack tenants.",
          "title": "Statement"
        },
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          "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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            "7Server-EXTRAS-7.9:etcd-0:3.2.32-1.el7_9.ppc64le",
            "7Server-EXTRAS-7.9:etcd-0:3.2.32-1.el7_9.s390x",
            "7Server-EXTRAS-7.9:etcd-0:3.2.32-1.el7_9.src",
            "7Server-EXTRAS-7.9:etcd-0:3.2.32-1.el7_9.x86_64",
            "7Server-EXTRAS-7.9:etcd-debuginfo-0:3.2.32-1.el7_9.ppc64le",
            "7Server-EXTRAS-7.9:etcd-debuginfo-0:3.2.32-1.el7_9.s390x",
            "7Server-EXTRAS-7.9:etcd-debuginfo-0:3.2.32-1.el7_9.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2021:1407"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "7Server-EXTRAS-7.9:etcd-0:3.2.32-1.el7_9.ppc64le",
            "7Server-EXTRAS-7.9:etcd-0:3.2.32-1.el7_9.s390x",
            "7Server-EXTRAS-7.9:etcd-0:3.2.32-1.el7_9.src",
            "7Server-EXTRAS-7.9:etcd-0:3.2.32-1.el7_9.x86_64",
            "7Server-EXTRAS-7.9:etcd-debuginfo-0:3.2.32-1.el7_9.ppc64le",
            "7Server-EXTRAS-7.9:etcd-debuginfo-0:3.2.32-1.el7_9.s390x",
            "7Server-EXTRAS-7.9:etcd-debuginfo-0:3.2.32-1.el7_9.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "etcd: DoS in wal/wal.go"
    }
  ]
}


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