github - ghsa-43j4-83fv-5vcm

GHSA-43J4-83FV-5VCM

Vulnerability from github – Published: 2025-10-09 18:30 – Updated: 2025-12-01 09:30

Details

A Buffer Copy without Checking Size of Input vulnerability in the

Session Initialization Protocol (SIP) ALG of Juniper Networks Junos OS on MX Series and SRX Series allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).

When memory utilization is high, and specific SIP packets are received, flowd crashes. While the system recovers automatically, the disruption can significantly impact service stability. Continuous receipt of these specific SIP packets, while high utilization is present, will cause a sustained DoS condition. The utilization is outside the attackers control, so they would not be able to deterministically exploit this. This issue affects Junos OS on SRX Series and MX Series:

All versions before 22.4R3-S7,
from 23.2 before 23.2R2-S4,
from 23.4 before 23.4R2-S5,
from 24.2 before 24.2R2.

Severity ?

5.9 (Medium)


                  
                    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

8.2 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/RE:M

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{
  "affected": [],
  "aliases": [
    "CVE-2025-52960"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-120"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-09T16:15:45Z",
    "severity": "HIGH"
  },
  "details": "A Buffer Copy without Checking Size of Input vulnerability in the \n\nSession Initialization Protocol (SIP) ALG of Juniper Networks Junos OS on MX Series and SRX Series allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).\n\nWhen memory utilization is high, and specific SIP\u00a0packets are received, flowd crashes. While the system recovers automatically, the disruption can significantly impact service stability. Continuous receipt of these specific SIP packets, while high utilization is present, will cause a sustained DoS condition. The utilization is outside the attackers control, so they would not be able to deterministically exploit this.\nThis issue affects Junos OS on SRX Series and MX Series:\u00a0\n\n\n  *  All versions before 22.4R3-S7,\n  *  from 23.2 before 23.2R2-S4, \n  *  from 23.4 before 23.4R2-S5, \n  *  from 24.2 before 24.2R2.",
  "id": "GHSA-43j4-83fv-5vcm",
  "modified": "2025-12-01T09:30:26Z",
  "published": "2025-10-09T18:30:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-52960"
    },
    {
      "type": "WEB",
      "url": "https://kb.juniper.net/JSA103143"
    },
    {
      "type": "WEB",
      "url": "https://supportportal.juniper.net/JSA103143"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/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:X/RE:M/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2025-52960 (GCVE-0-2025-52960)

Vulnerability from cvelistv5 – Published: 2025-10-09 15:40 – Updated: 2025-12-01 08:41

Summary

A Buffer Copy without Checking Size of Input vulnerability in the Session Initialization Protocol (SIP) ALG of Juniper Networks Junos OS on MX Series and SRX Series allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). When memory utilization is high, and specific SIP packets are received, flowd/mspmand crashes. While the system recovers automatically, the disruption can significantly impact service stability. Continuous receipt of these specific SIP packets, while high utilization is present, will cause a sustained DoS condition. The utilization is outside the attackers control, so they would not be able to deterministically exploit this. This issue affects Junos OS on SRX Series and MX Series: * All versions before 22.4R3-S7, * from 23.2 before 23.2R2-S4, * from 23.4 before 23.4R2-S5, * from 24.2 before 24.2R2.

Severity ?

5.9 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

8.2 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/RE:M

CWE

CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Assigner

juniper

References

URL

Tags

	https://supportportal.juniper.net/JSA103143	vendor-advisory
	https://kb.juniper.net/JSA103143	vendor-advisory

Impacted products

	Vendor	Product	Version
	Juniper Networks	Junos OS	Affected: 0 , < 22.4R3-S7 (semver) Affected: 23.2 , < 23.2R2-S4 (semver) Affected: 23.4 , < 23.4R2-S5 (semver) Affected: 24.2 , < 24.2R2 (semver)

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JSON

To clipboard

{
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      {
        "metrics": [
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            "other": {
              "content": {
                "id": "CVE-2025-52960",
                "options": [
                  {
                    "Exploitation": "none"
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                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-09T19:43:33.225187Z",
                "version": "2.0.3"
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              "type": "ssvc"
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        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-09T19:49:40.595Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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      "affected": [
        {
          "defaultStatus": "unaffected",
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            "MX Series"
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          "vendor": "Juniper Networks",
          "versions": [
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        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eTo be affected the SIP ALG needs to be enabled, either implicitly / by default or by way of configuration.\u003c/p\u003e\u003cp\u003ePlease verify on SRX, and MX with SPC3 with:\u003c/p\u003e\u003ccode\u003euser@host\u0026gt; show security alg status | match sip\u003c/code\u003e\u003cb\u003e\u003cbr\u003e\u003c/b\u003e\u003ccode\u003eSIP : Enabled\u003c/code\u003e\u003cb\u003e\u003cp\u003e\u003cbr\u003e\u003c/p\u003e\u003c/b\u003e\u003cp\u003ePlease verify on MX whether the following is configured:\u003c/p\u003e\u003ccode\u003e[services ... rule \u0026lt;rule-name\u0026gt; (term \u0026lt;term-name\u0026gt; ) from/match application/application-set \u0026lt;name\u0026gt;]\u003c/code\u003e\u003cp\u003ewhere either\u003c/p\u003e\u003ccode\u003ea. name = junos-sip\u003c/code\u003e\u003cp\u003eor an application or application-set refers to SIP:\u003c/p\u003e\u003ccode\u003eb. [applications application \u0026lt;name\u0026gt; application-protocol sip]\u003c/code\u003e\u003cp\u003eor\u003c/p\u003e\u003ccode\u003ec. [applications application-set \u0026lt;name\u0026gt; application junos-sip]\u003c/code\u003e\u003cbr\u003e"
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          ],
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        }
      ],
      "datePublic": "2025-10-08T16:00:00.000Z",
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          "supportingMedia": [
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              "base64": false,
              "type": "text/html",
              "value": "A Buffer Copy without Checking Size of Input vulnerability in the \n\nSession Initialization Protocol (SIP) ALG of Juniper Networks Junos OS on MX Series and SRX Series allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).\u003cbr\u003e\u003cbr\u003eWhen memory utilization is high, and specific \u003cspan style=\"background-color: rgb(255, 255, 255);\"\u003eSIP\u0026nbsp;\u003c/span\u003epackets are received, flowd/mspmand crashes. While the system recovers automatically, the disruption can significantly impact service stability. Continuous receipt of these specific SIP packets, while high utilization is present, will cause a sustained DoS condition. The utilization is outside the attackers control, so they would not be able to deterministically exploit this.\u003cbr\u003e\u003cp\u003eThis issue affects Junos OS on SRX Series and MX Series:\u0026nbsp;\u003cbr\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eAll versions before 22.4R3-S7,\u003c/li\u003e\u003cli\u003efrom 23.2 before 23.2R2-S4, \u003c/li\u003e\u003cli\u003efrom 23.4 before 23.4R2-S5, \u003c/li\u003e\u003cli\u003efrom 24.2 before 24.2R2.\u003c/li\u003e\u003c/ul\u003e"
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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-43J4-83FV-5VCM

CVE-2025-52960 (GCVE-0-2025-52960)

Tags

Sightings

Nomenclature