rhsa-2023:3447
Vulnerability from csaf_redhat
Published
2023-06-05 18:54
Modified
2025-08-13 09:34
Summary
Red Hat Security Advisory: Red Hat OpenStack Platform 16.1 (etcd) security update

Notes

Topic
An update for etcd is now available for Red Hat OpenStack Platform 16.1 (Train). Red Hat Product Security has rated this update as having a security impact of Important. 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
A highly-available key value store for shared configuration Security Fix(es): * Information discosure via debug function (CVE-2021-28235) * golang.org/x/net/http2: avoid quadratic complexity in HPACK decoding (CVE-2022-41723) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page 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.


To clipboard 

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          "title": "Vulnerability description"
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          "text": "etcd: Information discosure via debug function",
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        {
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          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2021-28235"
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          "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-28235"
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      "release_date": "2023-04-04T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2023-06-05T18:54:02+00:00",
          "details": "For details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
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      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "etcd: Information discosure via debug function"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Philippe Antoine"
          ],
          "organization": "Catena Cyber"
        }
      ],
      "cve": "CVE-2022-41723",
      "cwe": {
        "id": "CWE-400",
        "name": "Uncontrolled Resource Consumption"
      },
      "discovery_date": "2023-03-14T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2178358"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in golang. A maliciously crafted HTTP/2 stream could cause excessive CPU consumption in the HPACK decoder, sufficient to cause a denial of service from a small number of requests.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "golang.org/x/net/http2: avoid quadratic complexity in HPACK decoding",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Within OpenShift Container Platform, the maximum impact of this vulnerability is a denial of service against an individual container so the impact could not cascade across the entire infrastructure, this vulnerability is rated Moderate impact.\n\nWithin regulated environments, a combination of the following controls acts as a significant barrier to successfully exploiting a CWE-400: Uncontrolled Resource Consumption vulnerability and therefore downgrades the severity of this particular CVE from Moderate to Low.\n\nRed Hat restricts access to all platform information by default, granting access only after successful hard token-based multi-factor authentication (MFA) and enforcing least privilege to ensure only authorized roles can execute or modify code. The environment employs malicious code protections, including IDS/IPS and antimalware tools to detect threats and monitor resource usage, helping prevent uncontrolled consumption that could lead to system failure. Additional safeguards, such as web application firewalls and load-balancing strategies, protect against resource exhaustion and performance degradation. Event logs are centrally collected, correlated, and analyzed to support monitoring, alerting, and retention, aiding in the detection of abnormal behavior and potential denial-of-service (DoS) conditions. Static code analysis and peer reviews enforce strong input validation and error handling, reducing the likelihood of input-based DoS attacks.",
          "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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          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2178358"
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        {
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          "summary": "https://go.dev/cl/468135",
          "url": "https://go.dev/cl/468135"
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          "summary": "https://go.dev/cl/468295",
          "url": "https://go.dev/cl/468295"
        },
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          "summary": "https://go.dev/issue/57855",
          "url": "https://go.dev/issue/57855"
        },
        {
          "category": "external",
          "summary": "https://groups.google.com/g/golang-announce/c/V0aBFqaFs_E",
          "url": "https://groups.google.com/g/golang-announce/c/V0aBFqaFs_E"
        },
        {
          "category": "external",
          "summary": "https://pkg.go.dev/vuln/GO-2023-1571",
          "url": "https://pkg.go.dev/vuln/GO-2023-1571"
        },
        {
          "category": "external",
          "summary": "https://vuln.go.dev/ID/GO-2023-1571.json",
          "url": "https://vuln.go.dev/ID/GO-2023-1571.json"
        }
      ],
      "release_date": "2023-02-17T14:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2023-06-05T18:54:02+00:00",
          "details": "For details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
            "8Base-RHOS-16.1:etcd-0:3.3.23-14.el8ost.ppc64le",
            "8Base-RHOS-16.1:etcd-0:3.3.23-14.el8ost.src",
            "8Base-RHOS-16.1:etcd-0:3.3.23-14.el8ost.x86_64",
            "8Base-RHOS-16.1:etcd-debuginfo-0:3.3.23-14.el8ost.ppc64le",
            "8Base-RHOS-16.1:etcd-debuginfo-0:3.3.23-14.el8ost.x86_64",
            "8Base-RHOS-16.1:etcd-debugsource-0:3.3.23-14.el8ost.ppc64le",
            "8Base-RHOS-16.1:etcd-debugsource-0:3.3.23-14.el8ost.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2023:3447"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "8Base-RHOS-16.1:etcd-0:3.3.23-14.el8ost.ppc64le",
            "8Base-RHOS-16.1:etcd-0:3.3.23-14.el8ost.src",
            "8Base-RHOS-16.1:etcd-0:3.3.23-14.el8ost.x86_64",
            "8Base-RHOS-16.1:etcd-debuginfo-0:3.3.23-14.el8ost.ppc64le",
            "8Base-RHOS-16.1:etcd-debuginfo-0:3.3.23-14.el8ost.x86_64",
            "8Base-RHOS-16.1:etcd-debugsource-0:3.3.23-14.el8ost.ppc64le",
            "8Base-RHOS-16.1:etcd-debugsource-0:3.3.23-14.el8ost.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "golang.org/x/net/http2: avoid quadratic complexity in HPACK decoding"
    }
  ]
}


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