fkie_cve-2021-0267
Vulnerability from fkie_nvd
Published
2021-04-22 20:15
Modified
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
An Improper Input Validation vulnerability in the active-lease query portion in JDHCPD's DHCP Relay Agent of Juniper Networks Junos OS allows an attacker to cause a Denial of Service (DoS) by sending a crafted DHCP packet to the device thereby crashing the jdhcpd DHCP service. This is typically configured for Broadband Subscriber Sessions. Continued receipt and processing of this crafted packet will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS: 19.4 versions prior to 19.4R3-S1; 20.1 versions prior to 20.1R2-S1, 20.1R3; 20.2 versions prior to 20.2R3; 20.3 versions prior to 20.3R2. This issue does not affect Junos OS Evolved.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| juniper | junos | 19.4 | |
| juniper | junos | 19.4 | |
| juniper | junos | 19.4 | |
| juniper | junos | 19.4 | |
| juniper | junos | 19.4 | |
| juniper | junos | 19.4 | |
| juniper | junos | 19.4 | |
| juniper | junos | 20.1 | |
| juniper | junos | 20.1 | |
| juniper | junos | 20.1 | |
| juniper | junos | 20.1 | |
| juniper | junos | 20.1 | |
| juniper | junos | 20.1 | |
| juniper | junos | 20.2 | |
| juniper | junos | 20.2 | |
| juniper | junos | 20.2 | |
| juniper | junos | 20.2 | |
| juniper | junos | 20.2 | |
| juniper | junos | 20.2 | |
| juniper | junos | 20.2 | |
| juniper | junos | 20.2 | |
| juniper | junos | 20.3 | |
| juniper | junos | 20.3 |
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"value": "An Improper Input Validation vulnerability in the active-lease query portion in JDHCPD\u0027s DHCP Relay Agent of Juniper Networks Junos OS allows an attacker to cause a Denial of Service (DoS) by sending a crafted DHCP packet to the device thereby crashing the jdhcpd DHCP service. This is typically configured for Broadband Subscriber Sessions. Continued receipt and processing of this crafted packet will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS: 19.4 versions prior to 19.4R3-S1; 20.1 versions prior to 20.1R2-S1, 20.1R3; 20.2 versions prior to 20.2R3; 20.3 versions prior to 20.3R2. This issue does not affect Junos OS Evolved."
},
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"lang": "es",
"value": "Una vulnerabilidad de Comprobaci\u00f3n de Entrada Inapropiada en una porci\u00f3n de consulta active-lease en DHCP Relay Agent de JDHCPD de Juniper Networks Junos OS, permite a un atacante causar una Denegaci\u00f3n de Servicio (DoS) mediante el env\u00edo de un paquete DHCP dise\u00f1ado hacia el dispositivo, lo que bloquea el servicio DHCP jdhcpd.\u0026#xa0;Por lo general, se configura para Broadband Subscriber Sessions.\u0026#xa0;La recepci\u00f3n y el procesamiento continuo de este paquete dise\u00f1ado crear\u00e1 una condici\u00f3n sostenida de Denegaci\u00f3n de Servicio (DoS).\u0026#xa0;Este problema afecta a Juniper Networks Junos OS: versiones 19.4 anteriores a 19.4R3-S1;\u0026#xa0;versiones 20.1 anteriores a 20.1R2-S1, 20.1R3;\u0026#xa0;20.2 versiones anteriores a 20.2R3;\u0026#xa0;20.3 versiones anteriores a 20.3R2.\u0026#xa0;Este problema no afecta a Junos OS Evolved"
}
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"id": "CVE-2021-0267",
"lastModified": "2024-11-21T05:42:21.583",
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"accessVector": "ADJACENT_NETWORK",
"authentication": "NONE",
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"published": "2021-04-22T20:15:09.910",
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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