rhsa-2023_6042
Vulnerability from csaf_redhat
Published
2023-10-23 18:39
Modified
2024-12-18 04:48
Summary
Red Hat Security Advisory: Self Node Remediation Operator 0.5.1 security update

Notes

Topic
This is an updated version of the Self Node Remediation Operator. This Operator is delivered by Red Hat Workload Availability. 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
The Self Node Remediation Operator works in conjunction with machine health check or node health check to provide automatic remediation of unhealthy nodes by rebooting them. This minimizes downtime for stateful applications and ReadWriteOnce (RWO) Volumes, as well as restoring compute capacity in the event of transient failures. Security Fix(es): * golang: net/http, x/net/http2: rapid stream resets can cause excessive work (CVE-2023-44487) (CVE-2023-39325) 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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          "title": "Vulnerability description"
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          "text": "golang: net/http, x/net/http2: rapid stream resets can cause excessive work (CVE-2023-44487)",
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          "text": "This CVE is related to CVE-2023-44487.\n\nThe majority of RHEL utilities are not long-running applications; instead, they are command-line tools. These tools utilize Golang package as build-time dependency, which is why they are classified as having a \"Moderate\" level of impact.",
          "title": "Statement"
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          "url": "https://access.redhat.com/security/cve/CVE-2023-39325"
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          "summary": "https://pkg.go.dev/vuln/GO-2023-2102",
          "url": "https://pkg.go.dev/vuln/GO-2023-2102"
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        {
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          "summary": "https://www.cisa.gov/news-events/alerts/2023/10/10/http2-rapid-reset-vulnerability-cve-2023-44487",
          "url": "https://www.cisa.gov/news-events/alerts/2023/10/10/http2-rapid-reset-vulnerability-cve-2023-44487"
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      "remediations": [
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          "date": "2023-10-23T18:39:36+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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          "url": "https://access.redhat.com/errata/RHSA-2023:6042"
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        {
          "category": "workaround",
          "details": "The default stream concurrency limit in golang is 250 streams (requests) per HTTP/2 connection. This value may be adjusted in the golang.org/x/net/http2 package using the Server.MaxConcurrentStreams setting and the ConfigureServer function which are available in golang.org/x/net/http2.",
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            "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"
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          "text": "HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack)",
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          "text": "NGINX has been marked as Moderate Impact because, for performance and resource consumption reasons, NGINX limits the number of concurrent streams to a default of 128. In addition, to optimally balance network and server performance, NGINX allows the client to persist HTTP connections for up to 1000 requests by default using an HTTP keepalive.\n\nThe majority of RHEL utilities are not long-running applications; instead, they are command-line tools. These tools utilize Golang package as build-time dependency, which is why they are classified as having a \"Moderate\" level of impact.\n\nrhc component is no longer impacted by CVE-2023-44487 \u0026 CVE-2023-39325.",
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      "product_status": {
        "fixed": [
          "8Base-SELF-NODE-REMEDIATION-0.5:workload-availability/self-node-remediation-rhel8-operator@sha256:8f1d095530f102c6edbcb53a9c2685a043a9c9869b7ca6c1d254dd74ee17b0a3_amd64"
        ],
        "known_not_affected": [
          "8Base-SELF-NODE-REMEDIATION-0.5:workload-availability/self-node-remediation-must-gather-rhel8@sha256:0abf7c74783c4c310937b63cf6f2965e8eb076007691176ee4d7e76b956257c2_amd64",
          "8Base-SELF-NODE-REMEDIATION-0.5:workload-availability/self-node-remediation-operator-bundle@sha256:36561e5888cd34f8fb83ceff2910141fceaa6ea290bd246125930fe183e2ebc3_amd64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2023-44487"
        },
        {
          "category": "external",
          "summary": "RHBZ#2242803",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2242803"
        },
        {
          "category": "external",
          "summary": "RHSB-2023-003",
          "url": "https://access.redhat.com/security/vulnerabilities/RHSB-2023-003"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2023-44487",
          "url": "https://www.cve.org/CVERecord?id=CVE-2023-44487"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-44487",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-44487"
        },
        {
          "category": "external",
          "summary": "https://github.com/dotnet/announcements/issues/277",
          "url": "https://github.com/dotnet/announcements/issues/277"
        },
        {
          "category": "external",
          "summary": "https://pkg.go.dev/vuln/GO-2023-2102",
          "url": "https://pkg.go.dev/vuln/GO-2023-2102"
        },
        {
          "category": "external",
          "summary": "https://www.cisa.gov/news-events/alerts/2023/10/10/http2-rapid-reset-vulnerability-cve-2023-44487",
          "url": "https://www.cisa.gov/news-events/alerts/2023/10/10/http2-rapid-reset-vulnerability-cve-2023-44487"
        },
        {
          "category": "external",
          "summary": "https://www.nginx.com/blog/http-2-rapid-reset-attack-impacting-f5-nginx-products/",
          "url": "https://www.nginx.com/blog/http-2-rapid-reset-attack-impacting-f5-nginx-products/"
        },
        {
          "category": "external",
          "summary": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
          "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog"
        }
      ],
      "release_date": "2023-10-10T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2023-10-23T18:39:36+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
            "8Base-SELF-NODE-REMEDIATION-0.5:workload-availability/self-node-remediation-rhel8-operator@sha256:8f1d095530f102c6edbcb53a9c2685a043a9c9869b7ca6c1d254dd74ee17b0a3_amd64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2023:6042"
        },
        {
          "category": "workaround",
          "details": "Users are strongly urged to update their software as soon as fixes are available. \nThere are several mitigation approaches for this flaw. \n\n1. If circumstances permit, users may disable http2 endpoints to circumvent the flaw altogether until a fix is available.\n2. IP-based blocking or flood protection and rate control tools may be used at network endpoints to filter incoming traffic.\n3. Several package specific mitigations are also available. \n     a. nginx: https://www.nginx.com/blog/http-2-rapid-reset-attack-impacting-f5-nginx-products/\n     b. netty: https://github.com/netty/netty/security/advisories/GHSA-xpw8-rcwv-8f8p\n     c. haproxy: https://www.haproxy.com/blog/haproxy-is-not-affected-by-the-http-2-rapid-reset-attack-cve-2023-44487\n     d. nghttp2: https://github.com/nghttp2/nghttp2/security/advisories/GHSA-vx74-f528-fxqg\n     e. golang: The default stream concurrency limit in golang is 250 streams (requests) per HTTP/2 connection. This value may be adjusted in the golang.org/x/net/http2 package using the Server.MaxConcurrentStreams setting and the ConfigureServer function which are available in golang.org/x/net/http2.",
          "product_ids": [
            "8Base-SELF-NODE-REMEDIATION-0.5:workload-availability/self-node-remediation-must-gather-rhel8@sha256:0abf7c74783c4c310937b63cf6f2965e8eb076007691176ee4d7e76b956257c2_amd64",
            "8Base-SELF-NODE-REMEDIATION-0.5:workload-availability/self-node-remediation-operator-bundle@sha256:36561e5888cd34f8fb83ceff2910141fceaa6ea290bd246125930fe183e2ebc3_amd64",
            "8Base-SELF-NODE-REMEDIATION-0.5:workload-availability/self-node-remediation-rhel8-operator@sha256:8f1d095530f102c6edbcb53a9c2685a043a9c9869b7ca6c1d254dd74ee17b0a3_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": [
            "8Base-SELF-NODE-REMEDIATION-0.5:workload-availability/self-node-remediation-must-gather-rhel8@sha256:0abf7c74783c4c310937b63cf6f2965e8eb076007691176ee4d7e76b956257c2_amd64",
            "8Base-SELF-NODE-REMEDIATION-0.5:workload-availability/self-node-remediation-operator-bundle@sha256:36561e5888cd34f8fb83ceff2910141fceaa6ea290bd246125930fe183e2ebc3_amd64",
            "8Base-SELF-NODE-REMEDIATION-0.5:workload-availability/self-node-remediation-rhel8-operator@sha256:8f1d095530f102c6edbcb53a9c2685a043a9c9869b7ca6c1d254dd74ee17b0a3_amd64"
          ]
        }
      ],
      "threats": [
        {
          "category": "exploit_status",
          "date": "2023-10-10T00:00:00+00:00",
          "details": "CISA: https://www.cisa.gov/known-exploited-vulnerabilities-catalog"
        },
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack)"
    }
  ]
}


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