cvelistv5 - CVE-2021-0216

CVE-2021-0216

Vulnerability from cvelistv5

Published
2021-04-22 19:36
Modified
2024-09-16 23:42
Severity ?
6.5 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Junos OS: ACX5448, ACX710: BFD sessions might flap due to high rate of transit ARP packets
References
▼	URL	Tags
	sirt@juniper.net	https://kb.juniper.net/JSA11118	Vendor Advisory
Impacted products
▼	Vendor	Product
	Juniper Networks	Junos OS
	Juniper Networks	Junos OS
Show details on NVD website
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    "nvd": "{\"cve\":{\"id\":\"CVE-2021-0216\",\"sourceIdentifier\":\"sirt@juniper.net\",\"published\":\"2021-04-22T20:15:08.397\",\"lastModified\":\"2022-07-12T17:42:04.277\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability in Juniper Networks Junos OS running on the ACX5448 and ACX710 platforms may cause BFD sessions to flap when a high rate of transit ARP packets are received. This, in turn, may impact routing protocols and network stability, leading to a Denial of Service (DoS) condition. When a high rate of transit ARP packets are exceptioned to the CPU and BFD flaps, the following log messages may be seen: bfdd[15864]: BFDD_STATE_UP_TO_DOWN: BFD Session 192.168.14.3 (IFL 232) state Up -\u003e Down LD/RD(17/19) Up time:11:38:17 Local diag: CtlExpire Remote diag: None Reason: Detect Timer Expiry. bfdd[15864]: BFDD_TRAP_SHOP_STATE_DOWN: local discriminator: 17, new state: down, interface: irb.998, peer addr: 192.168.14.3 rpd[15839]: RPD_ISIS_ADJDOWN: IS-IS lost L2 adjacency to peer on irb.998, reason: BFD Session Down bfdd[15864]: BFDD_TRAP_SHOP_STATE_UP: local discriminator: 17, new state: up, interface: irb.998, peer addr: 192.168.14.3 This issue only affects the ACX5448 Series and ACX710 Series routers. No other products or platforms are affected by this vulnerability. This issue affects Juniper Networks Junos OS: 18.2 versions prior to 18.2R3-S8 on ACX5448; 18.3 versions prior to 18.3R3-S5 on ACX5448; 18.4 versions prior to 18.4R1-S6, 18.4R3-S7 on ACX5448; 19.1 versions prior to 19.1R3-S5 on ACX5448; 19.2 versions prior to 19.2R2, 19.2R3 on ACX5448; 19.3 versions prior to 19.3R3 on ACX5448; 19.4 versions prior to 19.4R3 on ACX5448; 20.1 versions prior to 20.1R2 on ACX5448; 20.2 versions prior to 20.2R2 on ACX5448 and ACX710.\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad en Juniper Networks Junos OS que se ejecuta en las plataformas ACX5448 y ACX710, puede causar que las sesiones BFD se interrumpan cuando se reciben paquetes ARP de alta tasa de tr\u00e1nsito.\u0026#xa0;Esto, a su vez, puede afectar los protocolos de enrutamiento y la estabilidad de la red, dando lugar a una condici\u00f3n de Denegaci\u00f3n de Servicio (DoS).\u0026#xa0;Cuando se except\u00faa una alta tasa de tr\u00e1nsito de paquetes ARP a la CPU y los flaps BFD, se pueden visualizar los siguientes mensajes de registro: bfdd[15864]: BFDD_STATE_UP_TO_DOWN: BFD Session 192.168.14.3 (IFL 232) state Up -) Down LD/RD(17/19) Up time:11:38:17 Local diag: CtlExpire Remote diag: None Reason: Detect Timer Expiry. bfdd[15864]: BFDD_TRAP_SHOP_STATE_DOWN: local discriminator: 17, new state: down, interface: irb.998, peer addr: 192.168.14.3 rpd[15839]: RPD_ISIS_ADJDOWN: IS-IS lost L2 adjacency to peer on irb.998, reason: BFD Session Down bfdd[15864]: BFDD_TRAP_SHOP_STATE_UP: local discriminator: 17, new state: up, interface: irb.998, peer addr: 192.168.14.3. Este problema solo afecta a los enrutadores de las series ACX5448 y ACX710.\u0026#xa0;Ning\u00fan otro producto o plataforma est\u00e1 afectado por esta vulnerabilidad.\u0026#xa0;Este problema afecta a Juniper Networks Junos OS: versiones 18.2 anteriores a 18.2R3-S8 en la Serie ACX5448;\u0026#xa0;versiones 18.3 anteriores a 18.3R3-S5 en la Serie ACX5448;\u0026#xa0;versiones 18.4 anteriores a 18.4R1-S6, 18.4R3-S7 en la Serie ACX5448;\u0026#xa0;versiones 19.1 anteriores a 19.1R3-S5 en la Serie ACX5448;\u0026#xa0;versiones 19.2 anteriores a 19.2R2, 19.2R3 en la Serie ACX5448;\u0026#xa0;versiones 19.3 anteriores a 19.3R3 en la Serie ACX5448;\u0026#xa0;versiones 19.4 anteriores a 19.4R3 en la Serie ACX5448;\u0026#xa0;versiones 20.1 anteriores a 20.1R2 en la Serie ACX5448;\u0026#xa0;versiones 20.2 anteriores a 20.2R2 en la Serie ACX5448 y 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Advisory\"]}]}}"
  }
}
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.
Action not permitted

CVE-2021-0216

Vulnerability from cvelistv5

ghsa-p2qm-vw5x-72gx

Vulnerability from github

gsd-2021-0216

Vulnerability from gsd

Tags

Sightings

Nomenclature
