CVE-2023-36849

Опубликовано: 14 июл. 2023

Источник: nvd

CVSS3: 6.5

EPSS Низкий

Описание

When a malformed LLDP packet is received, l2cpd will crash and restart. The impact of the l2cpd crash is reinitialization of STP protocols (RSTP, MSTP or VSTP), and MVRP and ERP. Also, if any services depend on LLDP state (like PoE or VoIP device recognition), then these will also be affected. Continued receipt of such packets will lead to a sustained Denial of Service.

This issue affects: Juniper Networks Junos OS 21.4 versions prior to 21.4R3-S3; 22.1 versions prior to 22.1R3-S3; 22.2 versions prior to 22.2R2-S1, 22.2R3; 22.3 versions prior to 22.3R2.

Juniper Networks Junos OS Evolved 21.4-EVO versions prior to 21.4R3-S2-EVO; 22.1-EVO versions prior to 22.1R3-S3-EVO; 22.2-EVO versions prior to 22.2R2-S1-EVO, 22.2R3-EVO; 22.3-EVO versions

Ссылки

https://supportportal.juniper.net/JSA71660
Mitigation
Vendor Advisory
https://supportportal.juniper.net/JSA71660
Mitigation
Vendor Advisory

Уязвимые конфигурации

Конфигурация 1

Одно из

cpe:2.3:o:juniper:junos:21.4:-:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r1-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r1-s2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r2-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r2-s2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r3:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r3-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:21.4:r3-s2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.1:r1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.1:r1-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.1:r1-s2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.1:r2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.1:r2-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.1:r2-s2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.1:r3:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.1:r3-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.1:r3-s2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.2:r1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.2:r1-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.2:r1-s2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.2:r2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.3:r1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.3:r1-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos:22.3:r1-s2:*:*:*:*:*:*

Конфигурация 2

Одно из

cpe:2.3:o:juniper:junos_os_evolved:21.4:-:*:*:*:*:*:*

cpe:2.3:o:juniper:junos_os_evolved:21.4:r1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos_os_evolved:21.4:r1-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos_os_evolved:21.4:r1-s2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos_os_evolved:21.4:r2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos_os_evolved:21.4:r2-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos_os_evolved:21.4:r2-s2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos_os_evolved:21.4:r3:*:*:*:*:*:*

cpe:2.3:o:juniper:junos_os_evolved:21.4:r3-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos_os_evolved:22.1:r1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos_os_evolved:22.1:r1-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos_os_evolved:22.1:r1-s2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos_os_evolved:22.1:r2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos_os_evolved:22.1:r2-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos_os_evolved:22.1:r3:*:*:*:*:*:*

cpe:2.3:o:juniper:junos_os_evolved:22.1:r3-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos_os_evolved:22.1:r3-s2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos_os_evolved:22.2:r1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos_os_evolved:22.2:r1-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos_os_evolved:22.2:r2:*:*:*:*:*:*

cpe:2.3:o:juniper:junos_os_evolved:22.3:r1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos_os_evolved:22.3:r1-s1:*:*:*:*:*:*

cpe:2.3:o:juniper:junos_os_evolved:22.3:r1-s2:*:*:*:*:*:*

EPSS

Процентиль: 25%

0.00085

Низкий

6.5 Medium

CVSS3

Дефекты

CWE-703

Связанные уязвимости

GHSA-px74-prrr-j3jp

CVSS3: 6.5

github

больше 2 лет назад

An Improper Check or Handling of Exceptional Conditions vulnerability in the Layer-2 control protocols daemon (l2cpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a Denial of Service (DoS). When a malformed LLDP packet is received, l2cpd will crash and restart. The impact of the l2cpd crash is reinitialization of STP protocols (RSTP, MSTP or VSTP), and MVRP and ERP. Also, if any services depend on LLDP state (like PoE or VoIP device recognition), then these will also be affected. Continued receipt of such packets will lead to a sustained Denial of Service. This issue affects: Juniper Networks Junos OS 21.4 versions prior to 21.4R3-S3; 22.1 versions prior to 22.1R3-S3; 22.2 versions prior to 22.2R2-S1, 22.2R3; 22.3 versions prior to 22.3R2. Juniper Networks Junos OS Evolved 21.4-EVO versions prior to 21.4R3-S2-EVO; 22.1-EVO versions prior to 22.1R3-S3-EVO; 22.2-EVO versions prior to 22.2R2-S1-EVO, 22.2R3-EVO; 22.3-EVO versi...

BDU:2023-07422

CVSS3: 6.5

fstec

больше 2 лет назад

Уязвимость демона протоколов управления (l2cpd) операционных систем Juniper Networks Junos и JunOS Evolved, позволяющая нарушителю вызвать отказ в обслуживании

EPSS

Процентиль: 25%

0.00085

Низкий

6.5 Medium

CVSS3

Дефекты

CWE-703