FKIE_CVE-2021-0284
Vulnerability from fkie_nvd - Published: 2021-08-17 23:15 - Updated: 2024-11-21 05:42
Severity ?
Summary
A buffer overflow vulnerability in the TCP/IP stack of Juniper Networks Junos OS allows an attacker to send specific sequences of packets to the device thereby causing a Denial of Service (DoS). By repeatedly sending these sequences of packets to the device, an attacker can sustain the Denial of Service (DoS) condition. The device will abnormally shut down as a result of these sent packets. A potential indicator of compromise will be the following message in the log files: "eventd[13955]: SYSTEM_ABNORMAL_SHUTDOWN: System abnormally shut down" This issue is only triggered by traffic destined to the device. Transit traffic will not trigger this issue. This issue affects: Juniper Networks Junos OS 12.3 versions prior to 12.3R12-S19; 15.1 versions prior to 15.1R7-S10; 17.3 versions prior to 17.3R3-S12; 18.4 versions prior to 18.4R2-S9, 18.4R3-S9; 19.1 versions prior to 19.1R3-S7; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S7, 19.3R3-S3; 19.4 versions prior to 19.4R3-S5; 20.1 versions prior to 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R2-S2, 20.4R3; 21.1 versions prior to 21.1R2; 21.2 versions prior to 21.2R1-S1, 21.2R2.
References
| URL | Tags | ||
|---|---|---|---|
| sirt@juniper.net | https://kb.juniper.net/JSA11200 | Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://kb.juniper.net/JSA11200 | Vendor Advisory |
Impacted products
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A buffer overflow vulnerability in the TCP/IP stack of Juniper Networks Junos OS allows an attacker to send specific sequences of packets to the device thereby causing a Denial of Service (DoS). By repeatedly sending these sequences of packets to the device, an attacker can sustain the Denial of Service (DoS) condition. The device will abnormally shut down as a result of these sent packets. A potential indicator of compromise will be the following message in the log files: \"eventd[13955]: SYSTEM_ABNORMAL_SHUTDOWN: System abnormally shut down\" This issue is only triggered by traffic destined to the device. Transit traffic will not trigger this issue. This issue affects: Juniper Networks Junos OS 12.3 versions prior to 12.3R12-S19; 15.1 versions prior to 15.1R7-S10; 17.3 versions prior to 17.3R3-S12; 18.4 versions prior to 18.4R2-S9, 18.4R3-S9; 19.1 versions prior to 19.1R3-S7; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S7, 19.3R3-S3; 19.4 versions prior to 19.4R3-S5; 20.1 versions prior to 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R2-S2, 20.4R3; 21.1 versions prior to 21.1R2; 21.2 versions prior to 21.2R1-S1, 21.2R2."
},
{
"lang": "es",
"value": "Una vulnerabilidad de desbordamiento del b\u00fafer en la pila TCP/IP del sistema operativo Junos de Juniper Networks permite a un atacante enviar secuencias espec\u00edficas de paquetes al dispositivo, provocando as\u00ed una denegaci\u00f3n de servicio (DoS). Al enviar repetidamente estas secuencias de paquetes al dispositivo, un atacante puede mantener la condici\u00f3n de denegaci\u00f3n de servicio (DoS). El dispositivo se apagar\u00e1 anormalmente como resultado de estos paquetes enviados. Un indicador potencial de compromiso ser\u00e1 el siguiente mensaje en los archivos de registro \"eventd[13955]: SYSTEM_ABNORMAL_SHUTDOWN: System abnormally shut down\" Este problema s\u00f3lo se activa por el tr\u00e1fico destinado al dispositivo. El tr\u00e1fico de tr\u00e1nsito no provocar\u00e1 este problema. Este problema afecta a: Juniper Networks Junos OS 12.3 versiones anteriores a 12.3R12-S19; 15.1 versiones anteriores a 15.1R7-S10; 17.3 versiones anteriores a 17.3R3-S12; 18.4 versiones anteriores a 18.4R2-S9, 18.4R3-S9; 19.1 versiones anteriores a 19.1R3-S7; 19.2 versiones anteriores a 19.2R1-S7, 19.2R3-S3; 19.3 versiones anteriores a 19. 3R2-S7, 19.3R3-S3; 19.4 versiones anteriores a 19.4R3-S5; 20.1 versiones anteriores a 20.1R3-S1; 20.2 versiones anteriores a 20.2R3-S2; 20.3 versiones anteriores a 20.3R3-S1; 20.4 versiones anteriores a 20.4R2-S2, 20.4R3; 21.1 versiones anteriores a 21.1R2; 21.2 versiones anteriores a 21.2R1-S1, 21.2R2"
}
],
"id": "CVE-2021-0284",
"lastModified": "2024-11-21T05:42:24.050",
"metrics": {
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{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 7.8,
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"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
"version": "2.0"
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"source": "nvd@nist.gov",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"published": "2021-08-17T23:15:07.403",
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"tags": [
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],
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}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
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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