github - ghsa-px74-prrr-j3jp

ghsa-px74-prrr-j3jp

Vulnerability from github

Published

2023-07-14 18:31

Modified

2024-04-04 06:08

Severity ?

6.5 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

When a malformed LLDP packet is received, l2cpd will crash and restart. The impact of the l2cpd crash is reinitialization of STP protocols (RSTP, MSTP or VSTP), and MVRP and ERP. Also, if any services depend on LLDP state (like PoE or VoIP device recognition), then these will also be affected. Continued receipt of such packets will lead to a sustained Denial of Service.

This issue affects: Juniper Networks Junos OS 21.4 versions prior to 21.4R3-S3; 22.1 versions prior to 22.1R3-S3; 22.2 versions prior to 22.2R2-S1, 22.2R3; 22.3 versions prior to 22.3R2.

Juniper Networks Junos OS Evolved 21.4-EVO versions prior to 21.4R3-S2-EVO; 22.1-EVO versions prior to 22.1R3-S3-EVO; 22.2-EVO versions prior to 22.2R2-S1-EVO, 22.2R3-EVO; 22.3-EVO versions prior to 22.3R2-EVO.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2023-36849"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-703"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-07-14T18:15:10Z",
    "severity": "MODERATE"
  },
  "details": "An Improper Check or Handling of Exceptional Conditions vulnerability in the Layer-2 control protocols daemon (l2cpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a Denial of Service (DoS).\n\nWhen a malformed LLDP packet is received, l2cpd will crash and restart. The impact of the l2cpd crash is reinitialization of STP protocols (RSTP, MSTP or VSTP), and MVRP and ERP. Also, if any services depend on LLDP state (like PoE or VoIP device recognition), then these will also be affected. Continued receipt of such packets will lead to a sustained Denial of Service.\n\nThis issue affects:\nJuniper Networks Junos OS\n21.4 versions prior to 21.4R3-S3;\n22.1 versions prior to 22.1R3-S3;\n22.2 versions prior to 22.2R2-S1, 22.2R3;\n22.3 versions prior to 22.3R2.\n\nJuniper Networks Junos OS Evolved\n21.4-EVO versions prior to 21.4R3-S2-EVO;\n22.1-EVO versions prior to 22.1R3-S3-EVO;\n22.2-EVO versions prior to 22.2R2-S1-EVO, 22.2R3-EVO;\n22.3-EVO versions prior to 22.3R2-EVO.\n",
  "id": "GHSA-px74-prrr-j3jp",
  "modified": "2024-04-04T06:08:53Z",
  "published": "2023-07-14T18:31:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-36849"
    },
    {
      "type": "WEB",
      "url": "https://supportportal.juniper.net/JSA71660"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2023-36849

Vulnerability from cvelistv5

Published

2023-07-14 17:58

Modified

2024-10-22 14:18

Severity ?

6.5 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

An Improper Check or Handling of Exceptional Conditions vulnerability in the Layer-2 control protocols daemon (l2cpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a Denial of Service (DoS). When a malformed LLDP packet is received, l2cpd will crash and restart. The impact of the l2cpd crash is reinitialization of STP protocols (RSTP, MSTP or VSTP), and MVRP and ERP. Also, if any services depend on LLDP state (like PoE or VoIP device recognition), then these will also be affected. Continued receipt of such packets will lead to a sustained Denial of Service. This issue affects: Juniper Networks Junos OS 21.4 versions prior to 21.4R3-S3; 22.1 versions prior to 22.1R3-S3; 22.2 versions prior to 22.2R2-S1, 22.2R3; 22.3 versions prior to 22.3R2. Juniper Networks Junos OS Evolved 21.4-EVO versions prior to 21.4R3-S2-EVO; 22.1-EVO versions prior to 22.1R3-S3-EVO; 22.2-EVO versions prior to 22.2R2-S1-EVO, 22.2R3-EVO; 22.3-EVO versions prior to 22.3R2-EVO.

References

▼	URL	Tags
	https://supportportal.juniper.net/JSA71660

Impacted products

Vendor

Product

Version

▼

Juniper Networks

Junos OS

Version: 21.4   < 21.4R3-S3
Version: 22.1   < 22.1R3-S3
Version: 22.2   < 22.2R2-S1, 22.2R3
Version: 22.3   < 22.3R2

Juniper Networks

Junos OS Evolved

Version: 21.4   < 21.4R3-S2-EVO
Version: 22.1   < 22.1R3-S3-EVO
Version: 22.2   < 22.2R2-S1-EVO, 22.2R3-EVO
Version: 22.3   < 22.3R2-EVO

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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