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CVE-2020-1653

Опубликовано: 17 июл. 2020
Источник: nvd
CVSS3: 7.5
CVSS2: 5
EPSS Низкий

Описание

On Juniper Networks Junos OS devices, a stream of TCP packets sent to the Routing Engine (RE) may cause mbuf leak which can lead to Flexible PIC Concentrator (FPC) crash or the system to crash and restart (vmcore). This issue can be trigged by IPv4 or IPv6 and it is caused only by TCP packets. This issue is not related to any specific configuration and it affects Junos OS releases starting from 17.4R1. However, this issue does not affect Junos OS releases prior to 18.2R1 when Nonstop active routing (NSR) is configured [edit routing-options nonstop-routing]. The number of mbufs is platform dependent. The following command provides the number of mbufs counter that are currently in use and maximum number of mbufs that can be allocated on a platform: user@host> show system buffers 2437/3143/5580 mbufs in use (current/cache/total) Once the device runs out of mbufs, the FPC crashes or the vmcore occurs and the device might become inaccessible requiring a manual restart. This issue affects Ju

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Уязвимые конфигурации

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EPSS

Процентиль: 64%
0.00464
Низкий

7.5 High

CVSS3

5 Medium

CVSS2

Дефекты

CWE-159
CWE-772

Связанные уязвимости

github
больше 3 лет назад

On Juniper Networks Junos OS devices, a stream of TCP packets sent to the Routing Engine (RE) may cause mbuf leak which can lead to Flexible PIC Concentrator (FPC) crash or the system to crash and restart (vmcore). This issue can be trigged by IPv4 or IPv6 and it is caused only by TCP packets. This issue is not related to any specific configuration and it affects Junos OS releases starting from 17.4R1. However, this issue does not affect Junos OS releases prior to 18.2R1 when Nonstop active routing (NSR) is configured [edit routing-options nonstop-routing]. The number of mbufs is platform dependent. The following command provides the number of mbufs counter that are currently in use and maximum number of mbufs that can be allocated on a platform: user@host> show system buffers 2437/3143/5580 mbufs in use (current/cache/total) Once the device runs out of mbufs, the FPC crashes or the vmcore occurs and the device might become inaccessible requiring a manual restart. This issue affects...

CVSS3: 7.5
fstec
больше 5 лет назад

Уязвимость модуля Routing Engine (RE) операционной системы JunOS, позволяющая нарушителю вызвать отказ в обслуживании

EPSS

Процентиль: 64%
0.00464
Низкий

7.5 High

CVSS3

5 Medium

CVSS2

Дефекты

CWE-159
CWE-772