RHSA-2026:73085

Vulnerability from csaf_redhat - Published: 2026-09-29 07:53 - Updated: 2026-10-02 07:15
Summary
Red Hat Security Advisory: OpenShift Container Platform 4.22 CNF vRAN extras topology aware lifecycle manager update
Severity
Important
Notes
Topic: An update for topology-aware-lifecycle manager is available for Red Hat OpenShift Container Platform 4.22.
Details: Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the extra vran topology aware lifecycle manager images for Red Hat OpenShift Container Platform 4.22. All OpenShift Container Platform users are advised to upgrade to these updated packages and images.
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.
CVE-2026-33814

A flaw was found in the HTTP/2 protocol implementation within the Go standard library (golang.org/x/net and net/http/internal/http2). A remote attacker can exploit this vulnerability by sending a specially crafted HTTP/2 SETTINGS frame with the SETTINGS_MAX_FRAME_SIZE parameter set to zero. This malicious frame causes the transport layer to enter an infinite loop of writing CONTINUATION frames, leading to resource exhaustion and a Denial of Service (DoS) condition.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-606 - Unchecked Input for Loop Condition
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat OpenShift Container Platform 4.22:registry.redhat.io/openshift4/topology-aware-lifecycle-manager-rhel9-operator@sha256:7169944c3af3e9fd9bedb7a6d3289f85d16b72e5e10b1e07a45d4d5cb581c279_amd64 —
Vendor Fix fix
Workaround
Product Identifier Version Remediation
Unresolved product id: Red Hat OpenShift Container Platform 4.22:registry.redhat.io/openshift4/topology-aware-lifecycle-manager-aztp-rhel9@sha256:7f11ad48e6abcd95ea358fb71495e3089d13de98d2b019fe5ef8faab57b46410_amd64 —
Workaround
Unresolved product id: Red Hat OpenShift Container Platform 4.22:registry.redhat.io/openshift4/topology-aware-lifecycle-manager-operator-bundle@sha256:f3360742b2908ae2235f37825a953a9225d044a57e17098e1dfa9996a3a9948c_amd64 —
Workaround
Unresolved product id: Red Hat OpenShift Container Platform 4.22:registry.redhat.io/openshift4/topology-aware-lifecycle-manager-precache-rhel9@sha256:211acee7beb4678f08d5bd1b66e2fb4c194f272e3bb1fa43c75f0ce9b61f948d_amd64 —
Workaround
Unresolved product id: Red Hat OpenShift Container Platform 4.22:registry.redhat.io/openshift4/topology-aware-lifecycle-manager-recovery-rhel9@sha256:128f9922ec17660e00030388c56922893e1160a53b1ddb16123bb69bcf5e6919_amd64 —
Workaround
Threats
Impact Important
References
To clipboard 

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  "vulnerabilities": [
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      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2467815"
        }
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      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in the HTTP/2 protocol implementation within the Go standard library (golang.org/x/net and net/http/internal/http2). A remote attacker can exploit this vulnerability by sending a specially crafted HTTP/2 SETTINGS frame with the SETTINGS_MAX_FRAME_SIZE parameter set to zero. This malicious frame causes the transport layer to enter an infinite loop of writing CONTINUATION frames, leading to resource exhaustion and a Denial of Service (DoS) condition.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "net/http/internal/http2: golang: golang.org/x/net: Go HTTP/2: Denial of Service via malformed SETTINGS_MAX_FRAME_SIZE frame",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This Important denial of service flaw in the Go HTTP/2 protocol implementation allows a remote, unauthenticated attacker to exhaust system resources. By sending a specially crafted HTTP/2 SETTINGS frame with a zero-value SETTINGS_MAX_FRAME_SIZE, the vulnerable Go library enters an infinite loop, impacting the availability of services utilizing HTTP/2.",
          "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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      "product_status": {
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          "Red Hat OpenShift Container Platform 4.22:registry.redhat.io/openshift4/topology-aware-lifecycle-manager-precache-rhel9@sha256:211acee7beb4678f08d5bd1b66e2fb4c194f272e3bb1fa43c75f0ce9b61f948d_amd64",
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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-33814"
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          "summary": "RHBZ#2467815",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467815"
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        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-33814",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-33814"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-33814",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33814"
        },
        {
          "category": "external",
          "summary": "https://go.dev/cl/761581",
          "url": "https://go.dev/cl/761581"
        },
        {
          "category": "external",
          "summary": "https://go.dev/cl/761640",
          "url": "https://go.dev/cl/761640"
        },
        {
          "category": "external",
          "summary": "https://go.dev/issue/78476",
          "url": "https://go.dev/issue/78476"
        },
        {
          "category": "external",
          "summary": "https://groups.google.com/g/golang-announce/c/qcCIEXso47M",
          "url": "https://groups.google.com/g/golang-announce/c/qcCIEXso47M"
        },
        {
          "category": "external",
          "summary": "https://pkg.go.dev/vuln/GO-2026-4918",
          "url": "https://pkg.go.dev/vuln/GO-2026-4918"
        }
      ],
      "release_date": "2026-05-07T19:41:17.631000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-09-29T07:53:39+00:00",
          "details": "For OpenShift Container Platform 4.22, see the following documentation for important instructions about upgrading your cluster and applying this asynchronous errata update:\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.22/html/release_notes/index\nInformation about accessing this content is available at https://docs.redhat.com/en/documentation/openshift_container_platform/4.22/html-single/updating_clusters/index#updating-cluster-cli",
          "product_ids": [
            "Red Hat OpenShift Container Platform 4.22:registry.redhat.io/openshift4/topology-aware-lifecycle-manager-rhel9-operator@sha256:7169944c3af3e9fd9bedb7a6d3289f85d16b72e5e10b1e07a45d4d5cb581c279_amd64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:73085"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
          "product_ids": [
            "Red Hat OpenShift Container Platform 4.22:registry.redhat.io/openshift4/topology-aware-lifecycle-manager-aztp-rhel9@sha256:7f11ad48e6abcd95ea358fb71495e3089d13de98d2b019fe5ef8faab57b46410_amd64",
            "Red Hat OpenShift Container Platform 4.22:registry.redhat.io/openshift4/topology-aware-lifecycle-manager-operator-bundle@sha256:f3360742b2908ae2235f37825a953a9225d044a57e17098e1dfa9996a3a9948c_amd64",
            "Red Hat OpenShift Container Platform 4.22:registry.redhat.io/openshift4/topology-aware-lifecycle-manager-precache-rhel9@sha256:211acee7beb4678f08d5bd1b66e2fb4c194f272e3bb1fa43c75f0ce9b61f948d_amd64",
            "Red Hat OpenShift Container Platform 4.22:registry.redhat.io/openshift4/topology-aware-lifecycle-manager-recovery-rhel9@sha256:128f9922ec17660e00030388c56922893e1160a53b1ddb16123bb69bcf5e6919_amd64",
            "Red Hat OpenShift Container Platform 4.22:registry.redhat.io/openshift4/topology-aware-lifecycle-manager-rhel9-operator@sha256:7169944c3af3e9fd9bedb7a6d3289f85d16b72e5e10b1e07a45d4d5cb581c279_amd64"
          ]
        }
      ],
      "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": [
            "Red Hat OpenShift Container Platform 4.22:registry.redhat.io/openshift4/topology-aware-lifecycle-manager-aztp-rhel9@sha256:7f11ad48e6abcd95ea358fb71495e3089d13de98d2b019fe5ef8faab57b46410_amd64",
            "Red Hat OpenShift Container Platform 4.22:registry.redhat.io/openshift4/topology-aware-lifecycle-manager-operator-bundle@sha256:f3360742b2908ae2235f37825a953a9225d044a57e17098e1dfa9996a3a9948c_amd64",
            "Red Hat OpenShift Container Platform 4.22:registry.redhat.io/openshift4/topology-aware-lifecycle-manager-precache-rhel9@sha256:211acee7beb4678f08d5bd1b66e2fb4c194f272e3bb1fa43c75f0ce9b61f948d_amd64",
            "Red Hat OpenShift Container Platform 4.22:registry.redhat.io/openshift4/topology-aware-lifecycle-manager-recovery-rhel9@sha256:128f9922ec17660e00030388c56922893e1160a53b1ddb16123bb69bcf5e6919_amd64",
            "Red Hat OpenShift Container Platform 4.22:registry.redhat.io/openshift4/topology-aware-lifecycle-manager-rhel9-operator@sha256:7169944c3af3e9fd9bedb7a6d3289f85d16b72e5e10b1e07a45d4d5cb581c279_amd64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "net/http/internal/http2: golang: golang.org/x/net: Go HTTP/2: Denial of Service via malformed SETTINGS_MAX_FRAME_SIZE frame"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.