FKIE_CVE-2021-31367
Vulnerability from fkie_nvd - Published: 2021-10-19 19:15 - Updated: 2024-11-21 06:05
Severity
Summary
A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on PTX Series allows an adjacent attacker to cause a Denial of Service (DoS) by sending genuine BGP flowspec packets which cause an FPC heap memory leak. Once having run out of memory the FPC will crash and restart along with a core dump. Continued receipted of these packets will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS All versions prior to 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-S6, 19.3R3-S3; 19.4 versions prior to 19.4R1-S4, 19.4R3-S6; 20.1 versions prior to 20.1R2-S2, 20.1R3; 20.2 versions prior to 20.2R3-S1; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2. Juniper Networks Junos Evolved is not affected.
References
| URL | Tags | ||
|---|---|---|---|
| sirt@juniper.net | https://kb.juniper.net/JSA11229 | Patch, Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://kb.juniper.net/JSA11229 | Patch, Vendor Advisory |
Impacted products
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"value": "A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on PTX Series allows an adjacent attacker to cause a Denial of Service (DoS) by sending genuine BGP flowspec packets which cause an FPC heap memory leak. Once having run out of memory the FPC will crash and restart along with a core dump. Continued receipted of these packets will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS All versions prior to 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-S6, 19.3R3-S3; 19.4 versions prior to 19.4R1-S4, 19.4R3-S6; 20.1 versions prior to 20.1R2-S2, 20.1R3; 20.2 versions prior to 20.2R3-S1; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2. Juniper Networks Junos Evolved is not affected."
},
{
"lang": "es",
"value": "Una vulnerabilidad de Falta de Liberaci\u00f3n de Memoria despu\u00e9s del Tiempo de Vida Efectivo en el Motor de Reenv\u00edo de Paquetes (PFE) de Juniper Networks Junos OS en la serie PTX permite a un atacante adyacente causar una Denegaci\u00f3n de Servicio (DoS) mediante el env\u00edo de paquetes BGP flowspec aut\u00e9nticos que causan una p\u00e9rdida de memoria de la pila de FPC. Una vez que se haya agotado la memoria, el FPC se bloquear\u00e1 y se reiniciar\u00e1 junto con un volcado del n\u00facleo. Una recepci\u00f3n continuada de estos paquetes crear\u00e1 una condici\u00f3n sostenida de Denegaci\u00f3n de Servicio (DoS). Este problema afecta a: Juniper Networks Junos OS Todas las versiones anteriores a 18.4R3-S9; versiones 19.1 anteriores a 19.1R3-S7; versiones 19.2 anteriores a 19.2R1-S7, 19.2R3-S3; versiones 19.3 anteriores a 19.3R2-S6, 19.3R3-S3; versiones 19.4 anteriores a 19. 4R1-S4, 19.4R3-S6; versiones 20.1 anteriores a 20.1R2-S2, 20.1R3; versiones 20.2 anteriores a 20.2R3-S1; versiones 20.3 anteriores a 20.3R3; versiones 20.4 anteriores a 20.4R3; versiones 21.1 anteriores a 21.1R2. Juniper Networks Junos Evolved no est\u00e1 afectado"
}
],
"id": "CVE-2021-31367",
"lastModified": "2024-11-21T06:05:31.457",
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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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