fkie_cve-2021-0254
Vulnerability from fkie_nvd
Published
2021-04-22 20:15
Modified
2024-11-21 05:42
Severity ?
Summary
A buffer size validation vulnerability in the overlayd service of Juniper Networks Junos OS may allow an unauthenticated remote attacker to send specially crafted packets to the device, triggering a partial Denial of Service (DoS) condition, or leading to remote code execution (RCE). Continued receipt and processing of these packets will sustain the partial DoS. The overlayd daemon handles Overlay OAM packets, such as ping and traceroute, sent to the overlay. The service runs as root by default and listens for UDP connections on port 4789. This issue results from improper buffer size validation, which can lead to a buffer overflow. Unauthenticated attackers can send specially crafted packets to trigger this vulnerability, resulting in possible remote code execution. overlayd runs by default in MX Series, ACX Series, and QFX Series platforms. The SRX Series does not support VXLAN and is therefore not vulnerable to this issue. Other platforms are also vulnerable if a Virtual Extensible LAN (VXLAN) overlay network is configured. This issue affects Juniper Networks Junos OS: 15.1 versions prior to 15.1R7-S9; 17.3 versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R2-S13, 17.4R3-S4; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R2-S8, 18.2R3-S7; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S7, 18.4R3-S7; 19.1 versions prior to 19.1R2-S2, 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S2; 19.3 versions prior to 19.3R3-S1; 19.4 versions prior to 19.4R2-S4, 19.4R3-S1; 20.1 versions prior to 20.1R2-S1, 20.1R3; 20.2 versions prior to 20.2R2, 20.2R2-S1, 20.2R3; 20.3 versions prior to 20.3R1-S1.
References
| ▼ | URL | Tags | |
|---|---|---|---|
| sirt@juniper.net | https://kb.juniper.net/JSA11147 | Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://kb.juniper.net/JSA11147 | Vendor Advisory |
Impacted products
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A buffer size validation vulnerability in the overlayd service of Juniper Networks Junos OS may allow an unauthenticated remote attacker to send specially crafted packets to the device, triggering a partial Denial of Service (DoS) condition, or leading to remote code execution (RCE). Continued receipt and processing of these packets will sustain the partial DoS. The overlayd daemon handles Overlay OAM packets, such as ping and traceroute, sent to the overlay. The service runs as root by default and listens for UDP connections on port 4789. This issue results from improper buffer size validation, which can lead to a buffer overflow. Unauthenticated attackers can send specially crafted packets to trigger this vulnerability, resulting in possible remote code execution. overlayd runs by default in MX Series, ACX Series, and QFX Series platforms. The SRX Series does not support VXLAN and is therefore not vulnerable to this issue. Other platforms are also vulnerable if a Virtual Extensible LAN (VXLAN) overlay network is configured. This issue affects Juniper Networks Junos OS: 15.1 versions prior to 15.1R7-S9; 17.3 versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R2-S13, 17.4R3-S4; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R2-S8, 18.2R3-S7; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S7, 18.4R3-S7; 19.1 versions prior to 19.1R2-S2, 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S2; 19.3 versions prior to 19.3R3-S1; 19.4 versions prior to 19.4R2-S4, 19.4R3-S1; 20.1 versions prior to 20.1R2-S1, 20.1R3; 20.2 versions prior to 20.2R2, 20.2R2-S1, 20.2R3; 20.3 versions prior to 20.3R1-S1."
},
{
"lang": "es",
"value": "Una vulnerabilidad de comprobaci\u00f3n del tama\u00f1o del b\u00fafer en el servicio overlayd de Juniper Networks Junos OS, puede permitir a un atacante remoto no autenticado enviar paquetes especialmente dise\u00f1ados hacia el dispositivo, desencadenando una condici\u00f3n de Denegaci\u00f3n de Servicio (DoS) parcial o conllevando a una Ejecuci\u00f3n de C\u00f3digo Remota (RCE).\u0026#xa0;La recepci\u00f3n y el procesamiento continuo de estos paquetes mantendr\u00e1n el DoS parcial.\u0026#xa0;El demonio overlayd maneja paquetes Overlay OAM, tal y como ping y traceroute, enviados a overlayd.\u0026#xa0;El servicio se ejecuta como root por defecto y escucha las conexiones UDP en el puerto 4789. Este problema resulta de una comprobaci\u00f3n inapropiada del tama\u00f1o del b\u00fafer, lo que puede conllevar a un desbordamiento del b\u00fafer.\u0026#xa0;Los atacantes no autenticados pueden enviar paquetes especialmente dise\u00f1ados para activar esta vulnerabilidad, resultando en una posible Ejecuci\u00f3n de C\u00f3digo Remota.\u0026#xa0;La overlayd se ejecuta por defecto en las plataformas de las series MX, ACX y QFX.\u0026#xa0;La serie SRX no es compatible con VXLAN y, por lo tanto, no es vulnerable a este problema.\u0026#xa0;Otras plataformas son tambi\u00e9n vulnerables si una red overlay de Virtual Extensible LAN (VXLAN) es configurada.\u0026#xa0;Este problema afecta a Junos de Juniper Networks OS: versiones 15.1 anteriores a 15.1R7-S9;\u0026#xa0;versiones 17.3 anteriores a 17.3R3-S11;\u0026#xa0;versiones 17.4 anteriores a 17.4R2-S13, 17.4R3-S4;\u0026#xa0;versiones 18.1 anteriores a 18.1R3-S12;\u0026#xa0;versiones 18.2 anteriores a 18.2R2-S8, 18.2R3-S7;\u0026#xa0;versiones 18.3 anteriores a 18.3R3-S4;\u0026#xa0;versiones 18.4 anteriores a 18.4R1-S8, 18.4R2-S7, 18.4R3-S7;\u0026#xa0;versiones 19.1 anteriores a 19.1R2-S2, 19.1R3-S4;\u0026#xa0;versiones 19.2 anteriores a 19.2R1-S6, 19.2R3-S2;\u0026#xa0;versiones 19.3 anteriores a 19.3R3-S1;\u0026#xa0;versiones 19.4 anteriores a 19.4R2-S4, 19.4R3-S1;\u0026#xa0;versiones 20.1 anteriores a 20.1R2-S1, 20.1R3;\u0026#xa0;versiones 20.2 anteriores a 20.2R2, 20.2R2-S1, 20.2R3;\u0026#xa0;versiones 20.3 anteriores a 20.3R1-S1"
}
],
"id": "CVE-2021-0254",
"lastModified": "2024-11-21T05:42:19.537",
"metrics": {
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{
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"published": "2021-04-22T20:15:09.460",
"references": [
{
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"tags": [
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"weaknesses": [
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{
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{
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],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
Loading…
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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.