rhsa-2024_9158
Vulnerability from csaf_redhat
Published
2024-11-12 09:05
Modified
2024-11-24 16:07
Summary
Red Hat Security Advisory: lldpd security update

Notes

Topic
An update for lldpd is now available for Red Hat Enterprise Linux 9. 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
LLDP is an industry standard protocol designed to supplant proprietary Link-Layer protocols such as EDP or CDP. The goal of LLDP is to provide an inter-vendor compatible mechanism to deliver Link-Layer notifications to adjacent network devices. Security Fix(es): * lldp/openvswitch: denial of service via externally triggered memory leak (CVE-2020-27827) * lldpd: out-of-bounds read when decoding SONMP packets (CVE-2021-43612) * lldpd: CDP PDU Packet cdp.c out-of-bounds read (CVE-2023-41910) 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. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.5 Release Notes linked from 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 lldpd is now available for Red Hat Enterprise Linux 9.\n\nRed 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.",
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        "text": "LLDP is an industry standard protocol designed to supplant proprietary Link-Layer protocols such as EDP or CDP. The goal of LLDP is to provide an inter-vendor compatible mechanism to deliver Link-Layer notifications to adjacent network devices.\n\nSecurity Fix(es):\n\n* lldp/openvswitch: denial of service via externally triggered memory leak (CVE-2020-27827)\n\n* lldpd: out-of-bounds read when decoding SONMP packets (CVE-2021-43612)\n\n* lldpd: CDP PDU Packet cdp.c out-of-bounds read (CVE-2023-41910)\n\nFor 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.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Red Hat Enterprise Linux 9.5 Release Notes linked from the References section.",
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          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
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        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "lldpd: out-of-bounds read when decoding SONMP packets"
    },
    {
      "cve": "CVE-2023-41910",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
      },
      "discovery_date": "2023-09-05T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2237411"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in lldpd due to an out-of-bounds read in cdp_decode at daemon/protocols/cdp.c. By sending a specially crafted CDP PDU packet with specific CDP_TLV_ADDRESSES TLVs, a remote attacker could cause a denial of service.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "lldpd: CDP PDU Packet cdp.c out-of-bounds read",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "The highest threat from this vulnerability is system availability.",
          "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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      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2023-41910"
        },
        {
          "category": "external",
          "summary": "RHBZ#2237411",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2237411"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2023-41910",
          "url": "https://www.cve.org/CVERecord?id=CVE-2023-41910"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-41910",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-41910"
        }
      ],
      "release_date": "2023-09-05T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2024-11-12T09:05:21+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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      ],
      "title": "lldpd: CDP PDU Packet cdp.c out-of-bounds read"
    }
  ]
}


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