CVE-2021-27854

Опубликовано: 27 сент. 2022

Источник: nvd

CVSS3: 4.7

EPSS Низкий

Описание

Layer 2 network filtering capabilities such as IPv6 RA guard can be bypassed using combinations of VLAN 0 headers, LLC/SNAP headers, and converting frames from Ethernet to Wifi and its reverse.

Ссылки

https://blog.champtar.fr/VLAN0_LLC_SNAP/
https://datatracker.ietf.org/doc/draft-ietf-v6ops-ra-guard/08/
Vendor Advisory
https://kb.cert.org/vuls/id/855201
https://standards.ieee.org/ieee/802.1Q/10323/
Vendor Advisory
https://standards.ieee.org/ieee/802.2/1048/
Vendor Advisory
https://blog.champtar.fr/VLAN0_LLC_SNAP/
https://datatracker.ietf.org/doc/draft-ietf-v6ops-ra-guard/08/
Vendor Advisory
https://kb.cert.org/vuls/id/855201
https://standards.ieee.org/ieee/802.1Q/10323/
Vendor Advisory
https://standards.ieee.org/ieee/802.2/1048/
Vendor Advisory
https://www.kb.cert.org/vuls/id/855201

Уязвимые конфигурации

Конфигурация 1

cpe:2.3:a:ieee:ieee_802.2:*:*:*:*:*:*:*:*

Версия до 802.2h-1997 (включая)

Конфигурация 2

cpe:2.3:a:ietf:p802.1q:*:*:*:*:*:*:*:*

Версия до d1.0 (включая)

EPSS

Процентиль: 33%

0.00128

Низкий

4.7 Medium

CVSS3

Дефекты

CWE-290

Связанные уязвимости

CVE-2021-27854

CVSS3: 5.3

redhat

больше 4 лет назад

Layer 2 network filtering capabilities such as IPv6 RA guard can be bypassed using combinations of VLAN 0 headers, LLC/SNAP headers, and converting frames from Ethernet to Wifi and its reverse.

CVE-2021-27854

CVSS3: 4.7

debian

больше 3 лет назад

Layer 2 network filtering capabilities such as IPv6 RA guard can be by ...

GHSA-433g-q37h-7crr

CVSS3: 4.7

github

больше 3 лет назад

Layer 2 network filtering capabilities such as IPv6 RA guard can be bypassed using combinations of VLAN 0 headers, LLC/SNAP headers, and converting frames from Ethernet to Wifi and its reverse.

EPSS

Процентиль: 33%

0.00128

Низкий

4.7 Medium

CVSS3

Дефекты

CWE-290