FKIE_CVE-2021-0241
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, Juniper Networks Dynamic Host Configuration Protocol Daemon (JDHCPD) process might crash with a core dump if a specific DHCPv6 packet is received, resulting in a restart of the daemon. The daemon automatically restarts without intervention, but continued receipt and processing of these specific packets will repeatedly crash the JDHCPD process and sustain the 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-S11; 17.4 versions prior to 17.4R3-S4; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R3-S7; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R3-S7; 19.1 versions prior to 19.1R3-S4; 19.2 versions prior to 19.2R3-S1; 19.3 versions prior to 19.3R3-S1, 19.3R3-S2; 19.4 versions prior to 19.4R3-S1; 20.1 versions prior to 20.1R2, 20.1R3; 20.2 versions prior to 20.2R2, 20.2R3; 20.3 versions prior to 20.3R1-S2, 20.3R2.
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": "D9789FF8-D55C-4AF9-A250-E543A0EB826F",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:juniper:junos:20.2:r1:*:*:*:*:*:*",
"matchCriteriaId": "CD07B7E2-F5C2-4610-9133-FDA9E66DFF4F",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:juniper:junos:20.2:r1-s1:*:*:*:*:*:*",
"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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},
{
"criteria": "cpe:2.3:o:juniper:junos:20.2:r2:*:*:*:*:*:*",
"matchCriteriaId": "3332262F-81DA-4D78-99C9-514CADA46611",
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},
{
"criteria": "cpe:2.3:o:juniper:junos:20.2:r2-s1:*:*:*:*:*:*",
"matchCriteriaId": "B46B63A2-1518-4A29-940C-F05624C9658D",
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},
{
"criteria": "cpe:2.3:o:juniper:junos:20.2:r2-s2:*:*:*:*:*:*",
"matchCriteriaId": "8E0D4959-3865-42A7-98CD-1103EBD84528",
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},
{
"criteria": "cpe:2.3:o:juniper:junos:20.3:r1:*:*:*:*:*:*",
"matchCriteriaId": "5C9BC697-C7C9-447D-9EBD-E9711462583E",
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},
{
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"matchCriteriaId": "7B80433B-57B1-49EF-B1A1-83781D6102E3",
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},
{
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"matchCriteriaId": "20DDC6B7-BFC4-4F0B-8E68-442C23765BF2",
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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, Juniper Networks Dynamic Host Configuration Protocol Daemon (JDHCPD) process might crash with a core dump if a specific DHCPv6 packet is received, resulting in a restart of the daemon. The daemon automatically restarts without intervention, but continued receipt and processing of these specific packets will repeatedly crash the JDHCPD process and sustain the 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-S11; 17.4 versions prior to 17.4R3-S4; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R3-S7; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R3-S7; 19.1 versions prior to 19.1R3-S4; 19.2 versions prior to 19.2R3-S1; 19.3 versions prior to 19.3R3-S1, 19.3R3-S2; 19.4 versions prior to 19.4R3-S1; 20.1 versions prior to 20.1R2, 20.1R3; 20.2 versions prior to 20.2R2, 20.2R3; 20.3 versions prior to 20.3R1-S2, 20.3R2."
},
{
"lang": "es",
"value": "En las plataformas Juniper Networks Junos OS configuradas como servidor local DHCPv6 o Agente de Retransmisi\u00f3n DHCPv6, el proceso Juniper Networks Dynamic Host Configuration Protocol Daemon (JDHCPD), puede bloquearse con un volcado del n\u00facleo si se recibe un paquete DHCPv6 espec\u00edfico, 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 estos paquetes espec\u00edficos bloquear\u00e1 repetidamente el proceso JDHCPD y mantendr\u00e1 la condici\u00f3n 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-S11;\u0026#xa0;versiones 17.4 anteriores a 17.4R3-S4;\u0026#xa0;versiones 18.1 anteriores a 18.1R3-S12;\u0026#xa0;versiones 18.2 anteriores a 18.2R3-S7;\u0026#xa0;versiones 18.3 anteriores a 18.3R3-S4;\u0026#xa0;versiones 18.4 anteriores a 18.4R3-S7;\u0026#xa0;versiones 19.1 anteriores a 19.1R3-S4;\u0026#xa0;versiones 19.2 anteriores a 19.2R3-S1;\u0026#xa0;versiones 19.3 anteriores a 19.3R3-S1, 19.3R3-S2;\u0026#xa0;versiones 19.4 anteriores a 19.4R3-S1;\u0026#xa0;versiones 20.1 anteriores a 20.1R2, 20.1R3;\u0026#xa0;versiones 20.2 anteriores a 20.2R2, 20.2R3;\u0026#xa0;versiones 20.3 anteriores a 20.3R1-S2, 20.3R2"
}
],
"id": "CVE-2021-0241",
"lastModified": "2024-11-21T05:42:17.477",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "LOW",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "ADJACENT_NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 3.3,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 6.5,
"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": "2021-04-22T20:15:09.023",
"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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