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CVE-2021-20177

Опубликовано: 22 окт. 2020
Источник: redhat
CVSS3: 4.4
EPSS Низкий

Описание

A flaw was found in the Linux kernel's implementation of string matching within a packet. A privileged user (with root or CAP_NET_ADMIN) when inserting iptables rules could insert a rule which can panic the system. Kernel before kernel 5.5-rc1 is affected.

A flaw was found in the Linux kernel's implementation of string matching within a packet. A privileged user (with root or CAP_NET_ADMIN) when inserting iptables rules could insert a rule which can panic the system.

Меры по смягчению последствий

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 5kernelOut of support scope
Red Hat Enterprise Linux 6kernelOut of support scope
Red Hat Enterprise Linux 7kernelNot affected
Red Hat Enterprise Linux 7kernel-altNot affected
Red Hat Enterprise Linux 8kernelNot affected
Red Hat Enterprise Linux 8kernel-rtNot affected
Red Hat Enterprise MRG 2kernel-rtNot affected

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Дополнительная информация

Статус:

Moderate
Дефект:
CWE-125
https://bugzilla.redhat.com/show_bug.cgi?id=1914719kernel: iptables string match rule could result in kernel panic

EPSS

Процентиль: 12%
0.00042
Низкий

4.4 Medium

CVSS3

Связанные уязвимости

CVSS3: 4.4
ubuntu
около 4 лет назад

A flaw was found in the Linux kernel's implementation of string matching within a packet. A privileged user (with root or CAP_NET_ADMIN) when inserting iptables rules could insert a rule which can panic the system. Kernel before kernel 5.5-rc1 is affected.

CVSS3: 4.4
nvd
около 4 лет назад

A flaw was found in the Linux kernel's implementation of string matching within a packet. A privileged user (with root or CAP_NET_ADMIN) when inserting iptables rules could insert a rule which can panic the system. Kernel before kernel 5.5-rc1 is affected.

CVSS3: 4.4
debian
около 4 лет назад

A flaw was found in the Linux kernel's implementation of string matchi ...

github
около 3 лет назад

A flaw was found in the Linux kernel's implementation of string matching within a packet. A privileged user (with root or CAP_NET_ADMIN) when inserting iptables rules could insert a rule which can panic the system. Kernel before kernel 5.5-rc1 is affected.

CVSS3: 4.4
fstec
около 4 лет назад

Уязвимость ядра операционной системы Linux , связанная с чтением за границами буфера в памяти, позволяющая нарушителю вызвать отказ в обслуживании

EPSS

Процентиль: 12%
0.00042
Низкий

4.4 Medium

CVSS3