FKIE_CVE-2021-0240
Vulnerability from fkie_nvd - Published: 2021-04-22 20:15 - Updated: 2024-11-21 05:42
Severity
7.4 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
6.5 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.5 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
On Juniper Networks Junos OS platforms configured as DHCPv6 local server or DHCPv6 Relay Agent, the Juniper Networks Dynamic Host Configuration Protocol Daemon (JDHCPD) process might crash if a malformed DHCPv6 packet is received, resulting in a restart of the daemon. The daemon automatically restarts without intervention, but continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue only affects DHCPv6. DHCPv4 is not affected by this issue. This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S12; 17.4 versions prior to 17.4R3-S5; 18.1 versions prior to 18.1R3-S13; 18.2 versions prior to 18.2R3-S8; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R1-S8, 18.4R3-S7; 19.1 versions prior to 19.1R3-S5; 19.2 versions prior to 19.2R3-S2; 19.3 versions prior to 19.3R3-S2; 19.4 versions prior to 19.4R3-S2; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R2-S3, 20.2R3; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R2.
References
| URL | Tags | ||
|---|---|---|---|
| sirt@juniper.net | https://kb.juniper.net/JSA11168 | Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://kb.juniper.net/JSA11168 | Vendor Advisory |
Impacted products
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"matchCriteriaId": "401306D1-E9CE-49C6-8DC9-0E8747B9DC2C",
"vulnerable": true
},
{
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{
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"matchCriteriaId": "DC8E7547-6649-436D-BC45-184417680C72",
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},
{
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"matchCriteriaId": "CD07B7E2-F5C2-4610-9133-FDA9E66DFF4F",
"vulnerable": true
},
{
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"matchCriteriaId": "D3C23AEB-34DE-44FB-8D64-E69D6E8B7401",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:juniper:junos:20.2:r1-s2:*:*:*:*:*:*",
"matchCriteriaId": "18DB9401-5A51-4BB3-AC2F-58F58F1C788C",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:juniper:junos:20.2:r1-s3:*:*:*:*:*:*",
"matchCriteriaId": "06F53DA5-59AE-403C-9B1E-41CE267D8BB1",
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},
{
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},
{
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},
{
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"matchCriteriaId": "8E0D4959-3865-42A7-98CD-1103EBD84528",
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},
{
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},
{
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},
{
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},
{
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}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "On Juniper Networks Junos OS platforms configured as DHCPv6 local server or DHCPv6 Relay Agent, the Juniper Networks Dynamic Host Configuration Protocol Daemon (JDHCPD) process might crash if a malformed DHCPv6 packet is received, resulting in a restart of the daemon. The daemon automatically restarts without intervention, but continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue only affects DHCPv6. DHCPv4 is not affected by this issue. This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S12; 17.4 versions prior to 17.4R3-S5; 18.1 versions prior to 18.1R3-S13; 18.2 versions prior to 18.2R3-S8; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R1-S8, 18.4R3-S7; 19.1 versions prior to 19.1R3-S5; 19.2 versions prior to 19.2R3-S2; 19.3 versions prior to 19.3R3-S2; 19.4 versions prior to 19.4R3-S2; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R2-S3, 20.2R3; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R2."
},
{
"lang": "es",
"value": "En las plataformas Juniper Networks Junos OS configuradas como servidor local DHCPv6 o DHCPv6 Relay Agent, el proceso Juniper Networks Dynamic Host Configuration Protocol Daemon (JDHCPD) puede presentar un bloqueo si un paquete DHCPv6 malformado se recibe, resultando en un reinicio del demonio.\u0026#xa0;El demonio se reinicia autom\u00e1ticamente sin intervenci\u00f3n, pero la recepci\u00f3n y el procesamiento continuo de este paquete crear\u00e1n una condici\u00f3n sostenida de Denegaci\u00f3n de Servicio (DoS).\u0026#xa0;Este problema solo afecta a DHCPv6.\u0026#xa0;DHCPv4 no est\u00e1 afectado por este problema.\u0026#xa0;Este problema afecta a Juniper Networks Junos OS: versiones 17.3 anteriores a 17.3R3-S12;\u0026#xa0;versiones 17.4 anteriores a 17.4R3-S5;\u0026#xa0;versiones 18.1 anteriores a 18.1R3-S13;\u0026#xa0;18.2 versiones anteriores a 18.2R3-S8;\u0026#xa0;versiones 18.3 anteriores a 18.3R3-S5;\u0026#xa0;18.4 versiones anteriores a 18.4R1-S8, 18.4R3-S7;\u0026#xa0;19.1 versiones anteriores a 19.1R3-S5;\u0026#xa0;19.2 versiones anteriores a 19.2R3-S2;\u0026#xa0;19.\u0026#xa0;3 versiones anteriores a 19.3R3-S2;\u0026#xa0;versiones 19.4 anteriores a 19.4R3-S2;\u0026#xa0;20.1 versiones anteriores a 20.1R3;\u0026#xa0;versiones 20.2 anteriores a 20.2R2-S3, 20.2R3;\u0026#xa0;20.3 versiones anteriores a 20.3R2;\u0026#xa0;versiones 20.4 anteriores a 20.4R2"
}
],
"id": "CVE-2021-0240",
"lastModified": "2024-11-21T05:42:17.307",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "LOW",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "ADJACENT_NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 2.9,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:A/AC:M/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 5.5,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 4.0,
"source": "sirt@juniper.net",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2021-04-22T20:15:08.977",
"references": [
{
"source": "sirt@juniper.net",
"tags": [
"Vendor Advisory"
],
"url": "https://kb.juniper.net/JSA11168"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "https://kb.juniper.net/JSA11168"
}
],
"sourceIdentifier": "sirt@juniper.net",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-703"
}
],
"source": "sirt@juniper.net",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-755"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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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