ghsa-c84c-ph5v-qwvg
Vulnerability from github
Published
2025-04-09 21:31
Modified
2025-04-09 21:31
Severity ?
6.5 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.1 (High) - CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/V:C/RE:M
Details

A Signed to Unsigned Conversion Error vulnerability in the Layer 2 Control Protocol daemon (l2cpd) of Juniper Networks Junos OS and Juniper Networks Junos OS Evolved allows an unauthenticated adjacent attacker sending a specifically malformed LLDP TLV to cause the l2cpd process to crash and restart, causing a Denial of Service (DoS).  Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.

When an LLDP telemetry subscription is active, receipt of a specifically malformed LLDP TLV causes the l2cpd process to crash and restart.

This issue affects:

Junos OS:

  • All versions before 21.2R3-S9, 
  • from 21.4 before 21.4R3-S10, 
  • from 22.2 before 22.2R3-S6, 
  • from 22.4 before 22.4R3-S6, 
  • from 23.2 before 23.2R2-S3, 
  • from 23.4 before 23.4R2-S4, 
  • from 24.2 before 24.2R2; 

Junos OS Evolved: 

  • All versions before 21.4R3-S10-EVO,
  • from 22.2-EVO before 22.2R3-S6-EVO, 
  • from 22.4-EVO before 22.4R3-S6-EVO, 
  • from 23.2-EVO before 23.2R2-S3-EVO, 
  • from 23.4-EVO before 23.4R2-S4-EVO, 
  • from 24.2-EVO before 24.2R2-EVO.
Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2025-30646"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-195"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-09T20:15:27Z",
    "severity": "HIGH"
  },
  "details": "A Signed to Unsigned Conversion Error vulnerability in the Layer 2 Control Protocol daemon (l2cpd) of Juniper Networks Junos OS and Juniper Networks Junos OS Evolved allows an unauthenticated adjacent attacker sending a specifically malformed LLDP TLV to cause the l2cpd process to crash and restart, causing a Denial of Service (DoS).\u00a0 Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.\n\nWhen an LLDP telemetry subscription is active, receipt of a specifically malformed LLDP TLV causes the l2cpd process to crash and restart.\n\n\n\nThis issue affects:\n\nJunos OS: \n\n\n  *  All versions before 21.2R3-S9,\u00a0\n  *  from 21.4 before 21.4R3-S10,\u00a0\n  *  from 22.2 before 22.2R3-S6,\u00a0\n  *  from 22.4 before 22.4R3-S6,\u00a0\n  *  from 23.2 before 23.2R2-S3,\u00a0\n  *  from 23.4 before 23.4R2-S4,\u00a0\n  *  from 24.2 before 24.2R2;\u00a0\n\n\n\n\nJunos OS Evolved:\u00a0\n\n\n\n  *  All versions before 21.4R3-S10-EVO,\n  *  from 22.2-EVO before 22.2R3-S6-EVO,\u00a0\n  *  from 22.4-EVO before 22.4R3-S6-EVO,\u00a0\n  *  from 23.2-EVO before 23.2R2-S3-EVO,\u00a0\n  *  from 23.4-EVO before 23.4R2-S4-EVO,\u00a0\n  *  from 24.2-EVO before 24.2R2-EVO.",
  "id": "GHSA-c84c-ph5v-qwvg",
  "modified": "2025-04-09T21:31:43Z",
  "published": "2025-04-09T21:31:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-30646"
    },
    {
      "type": "WEB",
      "url": "https://supportportal.juniper.net/JSA96456"
    }
  ],
  "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"
    },
    {
      "score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:C/RE:M/U:X",
      "type": "CVSS_V4"
    }
  ]
}


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