rhsa-2023_5465
Vulnerability from csaf_redhat
Published
2023-10-05 14:39
Modified
2024-11-06 03:46
Summary
Red Hat Security Advisory: frr security update

Notes

Topic
An update for frr is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.2 Telecommunications Update Service, and Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions. 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
FRRouting is free software that manages TCP/IP based routing protocols. It supports BGP4, OSPFv2, OSPFv3, ISIS, RIP, RIPng, PIM, NHRP, PBR, EIGRP and BFD. Security Fix(es): * frr: Incorrect handling of a error in parsing of an invalid section of a BGP update can de-peer a router (CVE-2023-38802) 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": "An update for frr is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.2 Telecommunications Update Service, and Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions.\n\nRed 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.",
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      "cwe": {
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        "name": "Improper Input Validation"
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      "discovery_date": "2023-07-12T00:00:00+00:00",
      "ids": [
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          "text": "2230983"
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          "category": "description",
          "text": "A vulnerability was found in FRRouting (FRR). This flaw allows a remote attacker to cause a denial of service issue via a crafted BGP update with a corrupted attribute 23 (Tunnel Encapsulation).",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "frr: Incorrect handling of a error in parsing of an invalid section of a BGP update can de-peer a router",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This vulnerability is classified as important according to Red Hat\u0027s Severity Rating Classification as it allows a remote attacker to publish a crafted BGP update through the network, leading to denial of service.\n\nhttps://access.redhat.com/security/updates/classification",
          "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"
        }
      ],
      "product_status": {
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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2023-38802"
        },
        {
          "category": "external",
          "summary": "RHBZ#2230983",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2230983"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2023-38802",
          "url": "https://www.cve.org/CVERecord?id=CVE-2023-38802"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-38802",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-38802"
        },
        {
          "category": "external",
          "summary": "https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handling",
          "url": "https://blog.benjojo.co.uk/post/bgp-path-attributes-grave-error-handling"
        },
        {
          "category": "external",
          "summary": "https://github.com/advisories/GHSA-xh4f-v933-c556",
          "url": "https://github.com/advisories/GHSA-xh4f-v933-c556"
        }
      ],
      "release_date": "2023-08-29T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2023-10-05T14:39:28+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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          "restart_required": {
            "category": "none"
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          "url": "https://access.redhat.com/errata/RHSA-2023:5465"
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      "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"
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      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "frr: Incorrect handling of a error in parsing of an invalid section of a BGP update can de-peer a router"
    }
  ]
}


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