GHSA-R4G7-RP4J-9CV7

Vulnerability from github – Published: 2024-04-12 18:33 – Updated: 2025-02-06 21:32
VLAI?
Details

A Use-After-Free vulnerability in the Layer 2 Address Learning Daemon (l2ald)

of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause l2ald to crash leading to a Denial-of-Service (DoS).

In an EVPN-VXLAN scenario, when

state updates are received and processed by the affected system, the correct order of some processing steps is not ensured, which can lead to an l2ald crash and restart. Whether the crash occurs depends on system internal timing which is outside the attackers control. This issue affects:

Junos OS: 

  • All versions before 20.4R3-S8,
  • 21.2 versions before 21.2R3-S6,
  • 21.3 versions before 21.3R3-S5,
  • 21.4 versions before 21.4R3-S4,
  • 22.1 versions before 22.1R3-S3,
  • 22.2 versions before 22.2R3-S1,
  • 22.3 versions before 22.3R3,,
  • 22.4 versions before 22.4R2;

Junos OS Evolved: 

  • All versions before 20.4R3-S8-EVO,
  • 21.2-EVO versions before 21.2R3-S6-EVO, 
  • 21.3-EVO

versions before 21.3R3-S5-EVO, * 21.4-EVO

versions before 21.4R3-S4-EVO, * 22.1-EVO

versions before 22.1R3-S3-EVO, * 22.2-EVO

versions before 22.2R3-S1-EVO, * 22.3-EVO

versions before 22.3R3-EVO, * 22.4-EVO

versions before 22.4R2-EVO.

Severity ?
5.3 (Medium)
CVSS:3.1/AV:A/AC:H/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
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{
  "affected": [],
  "aliases": [
    "CVE-2024-30386"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-12T16:15:37Z",
    "severity": "MODERATE"
  },
  "details": "A Use-After-Free vulnerability in the\u00a0Layer 2 Address Learning Daemon (l2ald)\n\n of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause l2ald to crash leading to a Denial-of-Service (DoS).\n\nIn an EVPN-VXLAN scenario,\u00a0when \n\nstate updates are received and processed by the affected system, the correct order of some processing steps is not ensured, which can lead to an l2ald crash and restart. Whether the crash occurs depends on system internal timing which is outside the attackers control.\nThis issue affects:\n\nJunos OS:\u00a0\n\n\n\n  *  All versions before 20.4R3-S8,\n  *  21.2 versions before 21.2R3-S6,\n  *  21.3 versions before 21.3R3-S5,\n  *  21.4 versions before 21.4R3-S4,\n  *  22.1 versions before 22.1R3-S3,\n  *  22.2 versions before 22.2R3-S1,\n  *  22.3 versions before 22.3R3,,\n  *  22.4 versions before 22.4R2;\n\n\n\n\nJunos OS Evolved:\u00a0\n\n\n\n  *  All versions before 20.4R3-S8-EVO,\n  *  21.2-EVO versions before 21.2R3-S6-EVO,\u00a0\n  *  21.3-EVO\n\n versions before 21.3R3-S5-EVO,\n  *  21.4-EVO\n\n versions before 21.4R3-S4-EVO,\n  *  22.1-EVO\n\n versions before 22.1R3-S3-EVO,\n  *  22.2-EVO\n\n versions before 22.2R3-S1-EVO,\n  *  22.3-EVO\n\n versions before 22.3R3-EVO,\n  *  22.4-EVO\n\n versions before 22.4R2-EVO.",
  "id": "GHSA-r4g7-rp4j-9cv7",
  "modified": "2025-02-06T21:32:04Z",
  "published": "2024-04-12T18:33:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-30386"
    },
    {
      "type": "WEB",
      "url": "https://www.first.org/cvss/calculator/4.0#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"
    },
    {
      "type": "WEB",
      "url": "https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
    },
    {
      "type": "WEB",
      "url": "http://supportportal.juniper.net/JSA79184"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:H/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:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}


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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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