github - ghsa-6pgh-5wh4-5pph

GHSA-6PGH-5WH4-5PPH

Vulnerability from github – Published: 2025-04-09 21:31 – Updated: 2025-04-09 21:31

Details

Continuous receipt of these DHCP packets using the malformed DHCP Option will create a sustained Denial of Service (DoS) condition.

This issue affects Junos OS:

from 23.1R1 before 23.2R2-S3,
from 23.4 before 23.4R2-S3,
from 24.2 before 24.2R2.

This issue isn't applicable to any versions of Junos OS before 23.1R1.

This issue doesn't affect vSRX Series which doesn't support DHCP Snooping.

This issue doesn't affect Junos OS Evolved.

There are no indicators of compromise for this issue.

Severity ?

7.4 (High)


                  
                    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/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:U/V:C/RE:M/U:Green

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{
  "affected": [],
  "aliases": [
    "CVE-2025-21591"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-805"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-09T20:15:25Z",
    "severity": "HIGH"
  },
  "details": "A Buffer Access with Incorrect Length Value vulnerability in the jdhcpd daemon of Juniper Networks Junos OS, when DHCP snooping is enabled, allows an unauthenticated, adjacent, attacker to send a DHCP packet with a malformed DHCP option to cause jdhcp to crash creating a Denial of Service (DoS) condition.\n\nContinuous receipt of these DHCP packets using the malformed DHCP Option will create a sustained Denial of Service (DoS) condition.\n\n\nThis issue affects Junos OS:\n\n\n\n  *  from 23.1R1 before 23.2R2-S3,\n  *  from 23.4 before 23.4R2-S3,\n  *  from 24.2 before 24.2R2.\n\n\nThis issue isn\u0027t applicable to any versions of Junos OS before 23.1R1. \n\n\n\nThis issue doesn\u0027t affect vSRX Series which doesn\u0027t support DHCP Snooping. \n\nThis issue doesn\u0027t affect Junos OS Evolved.\n\nThere are no indicators of compromise for this issue.",
  "id": "GHSA-6pgh-5wh4-5pph",
  "modified": "2025-04-09T21:31:42Z",
  "published": "2025-04-09T21:31:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21591"
    },
    {
      "type": "WEB",
      "url": "https://supportportal.juniper.net/JSA96448"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/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:U/V:C/RE:M/U:Green",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2025-21591 (GCVE-0-2025-21591)

Vulnerability from cvelistv5 – Published: 2025-04-09 19:46 – Updated: 2025-04-28 16:21

Summary

A Buffer Access with Incorrect Length Value vulnerability in the jdhcpd daemon of Juniper Networks Junos OS, when DHCP snooping is enabled, allows an unauthenticated, adjacent, attacker to send a DHCP packet with a malformed DHCP option to cause jdhcp to crash creating a Denial of Service (DoS) condition. Continuous receipt of these DHCP packets using the malformed DHCP Option will create a sustained Denial of Service (DoS) condition. This issue affects Junos OS: * from 23.1 before 23.2R2-S3, * from 23.4 before 23.4R2-S3, * from 24.2 before 24.2R2. This issue isn't applicable to any versions of Junos OS before 23.1R1. This issue doesn't affect vSRX Series which doesn't support DHCP Snooping. This issue doesn't affect Junos OS Evolved. There are no indicators of compromise for this issue.

Severity ?

7.4 (High)


                        
                          CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/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:U/V:C/RE:M/U:Green

CWE

CWE-805 - Buffer Access with Incorrect Length Value

Assigner

juniper

References

URL

Tags

https://supportportal.juniper.net/JSA96448

vendor-advisory

Impacted products

	Vendor	Product	Version
	Juniper Networks	Junos OS	Affected: 23.1 , < 23.2R2-S3 (semver) Affected: 23.4 , < 23.4R2-S3 (semver) Affected: 24.2 , < 24.2R2 (semver) Unaffected: 0 , ≤ 23.1R1 (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-21591",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-10T13:17:33.869610Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-10T13:17:41.109Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "modules": [
            "dhcp"
          ],
          "packageName": "jdhcpd",
          "product": "Junos OS",
          "vendor": "Juniper Networks",
          "versions": [
            {
              "lessThan": "23.2R2-S3",
              "status": "affected",
              "version": "23.1",
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            },
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              "lessThan": "23.4R2-S3",
              "status": "affected",
              "version": "23.4",
              "versionType": "semver"
            },
            {
              "lessThan": "24.2R2",
              "status": "affected",
              "version": "24.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "23.1R1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "configurations": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "The required minimal configuration is DHCP is configured with DHCP snooping enabled with\u0026nbsp;\u003cspan style=\"background-color: var(--wht);\"\u003ethe mine-dhcp-client-options and/or mine-dhcpv6-client-options.\u003c/span\u003e\u003cp\u003e\u003cspan style=\"background-color: var(--wht);\"\u003e\u0026nbsp; [ vlans \u0026lt;vlan-name\u0026gt; forwarding-options dhcp-security \u003c/span\u003emine-dhcp-client-options ]\u003cbr\u003e\u0026nbsp; [ mine-dhcpv6-client-options ]\u003cbr\u003e\u003c/p\u003e\u003cp\u003ePlease note: It is atypical to use the above configuration with a DHCP server on the same device.\u003c/p\u003e"
            }
          ],
          "value": "The required minimal configuration is DHCP is configured with DHCP snooping enabled with\u00a0the mine-dhcp-client-options and/or mine-dhcpv6-client-options.\u00a0 [ vlans \u003cvlan-name\u003e forwarding-options dhcp-security mine-dhcp-client-options ]\n\u00a0 [ mine-dhcpv6-client-options ]\n\n\nPlease note: It is atypical to use the above configuration with a DHCP server on the same device."
        }
      ],
      "datePublic": "2025-04-09T16:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "A Buffer Access with Incorrect Length Value vulnerability in the jdhcpd daemon of Juniper Networks Junos OS, when DHCP snooping is enabled, allows an unauthenticated, adjacent, attacker to send a DHCP packet with a malformed DHCP option to cause jdhcp to crash creating a Denial of Service (DoS) condition.\u003cbr\u003e\u003cbr\u003eContinuous receipt of these DHCP packets using the malformed DHCP Option will create a sustained Denial of Service (DoS) condition.\u003cbr\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003eThis issue affects Junos OS:\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003efrom 23.1 before 23.2R2-S3,\u003c/li\u003e\u003cli\u003efrom 23.4 before 23.4R2-S3,\u003c/li\u003e\u003cli\u003efrom 24.2 before 24.2R2.\u003c/li\u003e\u003c/ul\u003eThis issue isn\u0027t applicable to any versions of Junos OS before 23.1R1. \u003cp\u003e\u003c/p\u003e\u003cp\u003e\u003c/p\u003eThis issue doesn\u0027t affect vSRX Series which doesn\u0027t support DHCP Snooping. \u003cbr\u003e\u003cbr\u003eThis issue doesn\u0027t affect Junos OS Evolved.\u003cbr\u003e\u003cbr\u003eThere are no indicators of compromise for this issue.\u003cbr\u003e"
            }
          ],
          "value": "A Buffer Access with Incorrect Length Value vulnerability in the jdhcpd daemon of Juniper Networks Junos OS, when DHCP snooping is enabled, allows an unauthenticated, adjacent, attacker to send a DHCP packet with a malformed DHCP option to cause jdhcp to crash creating a Denial of Service (DoS) condition.\n\nContinuous receipt of these DHCP packets using the malformed DHCP Option will create a sustained Denial of Service (DoS) condition.\n\n\nThis issue affects Junos OS:\n\n\n\n  *  from 23.1 before 23.2R2-S3,\n  *  from 23.4 before 23.4R2-S3,\n  *  from 24.2 before 24.2R2.\n\n\nThis issue isn\u0027t applicable to any versions of Junos OS before 23.1R1. \n\n\n\nThis issue doesn\u0027t affect vSRX Series which doesn\u0027t support DHCP Snooping. \n\nThis issue doesn\u0027t affect Junos OS Evolved.\n\nThere are no indicators of compromise for this issue."
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          "scenarios": [
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            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
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Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-6PGH-5WH4-5PPH

CVE-2025-21591 (GCVE-0-2025-21591)

Tags

Sightings

Nomenclature