CVE-2024-21602 (GCVE-0-2024-21602)
Vulnerability from cvelistv5 – Published: 2024-01-12 00:54 – Updated: 2025-06-17 21:09
VLAI
EPSS
VEX
Title
Junos OS Evolved: ACX7024, ACX7100-32C and ACX7100-48L: Traffic stops when a specific IPv4 UDP packet is received by the RE
Summary
A NULL Pointer Dereference vulnerability in Juniper Networks Junos OS Evolved on ACX7024, ACX7100-32C and ACX7100-48L allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).
If a specific IPv4 UDP packet is received and sent to the Routing Engine (RE) packetio crashes and restarts which causes a momentary traffic interruption. Continued receipt of such packets will lead to a sustained DoS.
This issue does not happen with IPv6 packets.
This issue affects Juniper Networks Junos OS Evolved on ACX7024, ACX7100-32C and ACX7100-48L:
* 21.4-EVO versions earlier than 21.4R3-S6-EVO;
* 22.1-EVO versions earlier than 22.1R3-S5-EVO;
* 22.2-EVO versions earlier than 22.2R2-S1-EVO, 22.2R3-EVO;
* 22.3-EVO versions earlier than 22.3R2-EVO.
This issue does not affect Juniper Networks Junos OS Evolved versions earlier than 21.4R1-EVO.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-01-12 15:42 UTC
CWE
- CWE-476 - NULL Pointer Dereference
- Denial of Service (DoS)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA75743 | vendor-advisory |
| https://www.first.org/cvss/calculator/4.0#CVSS:4.… | technical-description |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Juniper Networks | Junos OS Evolved |
Affected:
21.4-EVO , < 21.4R3-S6-EVO
(semver)
Affected: 22.1-EVO , < 22.1R3-S5-EVO (semver) Affected: 22.2-EVO , < 22.2R2-S1-EVO, 22.2R3-EVO (semver) Affected: 22.3-EVO , < 22.3R2-EVO (semver) |
guessed |
Date Public
2024-01-10 17:00
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"id": "CVE-2024-21602",
"lastModified": "2024-11-21T08:54:41.910",
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Continued receipt of such packets will lead to a sustained DoS.\\n\\nThis issue does not happen with IPv6 packets.\\n\\nThis issue affects Juniper Networks Junos OS Evolved on ACX7024, ACX7100-32C and ACX7100-48L:\\n\\n\\n\\n * 21.4-EVO versions earlier than 21.4R3-S6-EVO;\\n * 22.1-EVO versions earlier than 22.1R3-S5-EVO;\\n * 22.2-EVO versions earlier than 22.2R2-S1-EVO, 22.2R3-EVO;\\n * 22.3-EVO versions earlier than 22.3R2-EVO.\\n\\n\\n\\n\\nThis issue does not affect Juniper Networks Junos OS Evolved versions earlier than 21.4R1-EVO.\\n\\n\\n\\n\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad de desreferencia de puntero NULL en Juniper Networks Junos OS Evolved en ACX7024, ACX7100-32C y ACX7100-48L permite que un atacante no autenticado basado en red provoque una denegaci\u00f3n de servicio (DoS). Si se recibe y env\u00eda un paquete UDP IPv4 espec\u00edfico al motor de enrutamiento (RE), el paquete falla y se reinicia, lo que provoca una interrupci\u00f3n moment\u00e1nea del tr\u00e1fico. La recepci\u00f3n continua de dichos paquetes dar\u00e1 lugar a una DoS sostenida. Este problema no ocurre con los paquetes IPv6. Este problema afecta a Juniper Networks Junos OS Evolved en ACX7024, ACX7100-32C y ACX7100-48L: * Versiones 21.4-EVO anteriores a 21.4R3-S6-EVO; * Versiones 22.1-EVO anteriores a 22.1R3-S5-EVO; * Versiones 22.2-EVO anteriores a 22.2R2-S1-EVO, 22.2R3-EVO; * Versiones 22.3-EVO anteriores a 22.3R2-EVO. 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"redhat_vex": {
"current_release_date": "2025-05-28T22:16:39+00:00",
"cve": "CVE-2024-21602",
"id": "CVE-2024-21602",
"initial_release_date": "2024-01-10T17:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "Junos OS Evolved: ACX7024, ACX7100-32C and ACX7100-48L: Traffic stops when a specific IPv4 UDP packet is received by the RE",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-21602.json",
"version": "3"
},
"vulnrichment": {
"containers": "{\"cna\": {\"affected\": [{\"defaultStatus\": \"unaffected\", \"platforms\": [\"ACX7024\", \"ACX7100-32C\", \"ACX7100-48L\"], \"product\": \"Junos OS Evolved\", \"vendor\": \"Juniper Networks\", \"versions\": [{\"lessThan\": \"21.4R3-S6-EVO\", \"status\": \"affected\", \"version\": \"21.4-EVO\", \"versionType\": \"semver\"}, {\"lessThan\": \"22.1R3-S5-EVO\", \"status\": \"affected\", \"version\": \"22.1-EVO\", \"versionType\": \"semver\"}, {\"lessThan\": \"22.2R2-S1-EVO, 22.2R3-EVO\", \"status\": \"affected\", \"version\": \"22.2-EVO\", \"versionType\": \"semver\"}, {\"lessThan\": \"22.3R2-EVO\", \"status\": \"affected\", \"version\": \"22.3-EVO\", \"versionType\": \"semver\"}]}], \"datePublic\": \"2024-01-10T17:00:00.000Z\", \"descriptions\": [{\"lang\": \"en\", \"supportingMedia\": [{\"base64\": false, \"type\": \"text/html\", \"value\": \"\\n\\n\u003cp\u003eA NULL Pointer Dereference vulnerability in Juniper Networks Junos OS Evolved on ACX7024, ACX7100-32C and ACX7100-48L allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).\u003c/p\u003e\u003cp\u003eIf a specific IPv4 UDP packet is received and sent to the Routing Engine (RE) packetio crashes and restarts which causes a momentary traffic interruption. Continued receipt of such packets will lead to a sustained DoS.\u003c/p\u003e\u003cp\u003eThis issue does not happen with IPv6 packets.\u003c/p\u003e\u003cp\u003eThis issue affects Juniper Networks Junos OS Evolved on ACX7024, ACX7100-32C and ACX7100-48L:\u003c/p\u003e\u003cp\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003e21.4-EVO versions earlier than 21.4R3-S6-EVO;\u003c/li\u003e\u003cli\u003e22.1-EVO versions earlier than 22.1R3-S5-EVO;\u003c/li\u003e\u003cli\u003e22.2-EVO versions earlier than 22.2R2-S1-EVO, 22.2R3-EVO;\u003c/li\u003e\u003cli\u003e22.3-EVO versions earlier than 22.3R2-EVO.\u003c/li\u003e\u003c/ul\u003e\u003cp\u003e\u003c/p\u003e\u003cp\u003eThis issue does not affect Juniper Networks Junos OS Evolved versions earlier than 21.4R1-EVO.\u003c/p\u003e\\n\\n\"}], \"value\": \"\\nA NULL Pointer Dereference vulnerability in Juniper Networks Junos OS Evolved on ACX7024, ACX7100-32C and ACX7100-48L allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).\\n\\nIf a specific IPv4 UDP packet is received and sent to the Routing Engine (RE) packetio crashes and restarts which causes a momentary traffic interruption. Continued receipt of such packets will lead to a sustained DoS.\\n\\nThis issue does not happen with IPv6 packets.\\n\\nThis issue affects Juniper Networks Junos OS Evolved on ACX7024, ACX7100-32C and ACX7100-48L:\\n\\n\\n\\n * 21.4-EVO versions earlier than 21.4R3-S6-EVO;\\n * 22.1-EVO versions earlier than 22.1R3-S5-EVO;\\n * 22.2-EVO versions earlier than 22.2R2-S1-EVO, 22.2R3-EVO;\\n * 22.3-EVO versions earlier than 22.3R2-EVO.\\n\\n\\n\\n\\nThis issue does not affect Juniper Networks Junos OS Evolved versions earlier than 21.4R1-EVO.\\n\\n\\n\\n\"}], \"exploits\": [{\"lang\": \"en\", \"supportingMedia\": [{\"base64\": false, \"type\": \"text/html\", \"value\": \"\u003cp\u003eJuniper SIRT is not aware of any malicious exploitation of this vulnerability.\u003c/p\u003e\"}], \"value\": \"Juniper SIRT is not aware of any malicious exploitation of this vulnerability.\\n\\n\"}], \"metrics\": [{\"cvssV3_1\": {\"attackComplexity\": \"LOW\", \"attackVector\": \"NETWORK\", \"availabilityImpact\": \"HIGH\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"scope\": \"UNCHANGED\", \"userInteraction\": \"NONE\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"version\": \"3.1\"}, \"format\": \"CVSS\", \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"problemTypes\": [{\"descriptions\": [{\"cweId\": \"CWE-476\", \"description\": \"CWE-476 NULL Pointer Dereference\", \"lang\": \"en\", \"type\": \"CWE\"}]}, {\"descriptions\": [{\"description\": \"Denial of Service (DoS)\", \"lang\": \"en\"}]}], \"providerMetadata\": {\"orgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"shortName\": \"juniper\", \"dateUpdated\": \"2024-01-12T00:54:08.862Z\"}, \"references\": [{\"tags\": [\"vendor-advisory\"], \"url\": \"https://supportportal.juniper.net/JSA75743\"}, {\"tags\": [\"technical-description\"], \"url\": \"https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L\"}], \"solutions\": [{\"lang\": \"en\", \"supportingMedia\": [{\"base64\": false, \"type\": \"text/html\", \"value\": \"\u003cp\u003eThe following software releases have been updated to resolve this specific issue: 21.4R3-S6-EVO, 22.1R3-S5-EVO, 22.2R2-S1-EVO, 22.2R3-EVO, 22.3R2-EVO, 22.4R1-EVO, and all subsequent releases.\u003c/p\u003e\"}], \"value\": \"The following software releases have been updated to resolve this specific issue: 21.4R3-S6-EVO, 22.1R3-S5-EVO, 22.2R2-S1-EVO, 22.2R3-EVO, 22.3R2-EVO, 22.4R1-EVO, and all subsequent releases.\\n\\n\"}], \"source\": {\"advisory\": \"JSA75743\", \"defect\": [\"1690815\"], \"discovery\": \"USER\"}, \"timeline\": [{\"lang\": \"en\", \"time\": \"2024-01-10T17:00:00.000Z\", \"value\": \"Initial Publication\"}], \"title\": \"Junos OS Evolved: ACX7024, ACX7100-32C and ACX7100-48L: Traffic stops when a specific IPv4 UDP packet is received by the RE\", \"workarounds\": [{\"lang\": \"en\", \"supportingMedia\": [{\"base64\": false, \"type\": \"text/html\", \"value\": \"\u003cp\u003eThere are no known workarounds for this issue.\u003c/p\u003e\"}], \"value\": \"There are no known workarounds for this issue.\\n\\n\"}], \"x_generator\": {\"engine\": \"Vulnogram 0.1.0-av217\"}}, \"adp\": [{\"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-21602\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-01-12T15:42:43.703668Z\"}}}], \"providerMetadata\": {\"shortName\": \"CISA-ADP\", \"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"dateUpdated\": \"2025-06-17T21:07:41.377Z\"}, \"title\": \"CISA ADP Vulnrichment\"}]}",
"cveMetadata": "{\"cveId\": \"CVE-2024-21602\", \"assignerOrgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"juniper\", \"dateReserved\": \"2023-12-27T19:38:25.707Z\", \"datePublished\": \"2024-01-12T00:54:08.862Z\", \"dateUpdated\": \"2024-08-01T22:27:35.715Z\"}",
"dataType": "CVE_RECORD",
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}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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