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CVE-2021-3759

Опубликовано: 15 июл. 2021
Источник: redhat
CVSS3: 5.5

Описание

A memory overflow vulnerability was found in the Linux kernel’s ipc functionality of the memcg subsystem, in the way a user calls the semget function multiple times, creating semaphores. This flaw allows a local user to starve the resources, causing a denial of service. The highest threat from this vulnerability is to system availability.

Меры по смягчению последствий

Mitigation for this issue is either not available or the currently available options don't 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 5kernelNot affected
Red Hat Enterprise Linux 6kernelNot affected
Red Hat Enterprise Linux 7kernelNot affected
Red Hat Enterprise Linux 7kernel-rtNot affected
Red Hat Enterprise Linux 9kernelNot affected
Red Hat Enterprise Linux 8kernel-rtFixedRHSA-2022:197510.05.2022
Red Hat Enterprise Linux 8kernelFixedRHSA-2022:198810.05.2022

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Дополнительная информация

Статус:

Moderate
Дефект:
CWE-770
https://bugzilla.redhat.com/show_bug.cgi?id=1999675kernel: unaccounted ipc objects in Linux kernel lead to breaking memcg limits and DoS attacks

5.5 Medium

CVSS3

Связанные уязвимости

CVSS3: 5.5
ubuntu
почти 3 года назад

A memory overflow vulnerability was found in the Linux kernel’s ipc functionality of the memcg subsystem, in the way a user calls the semget function multiple times, creating semaphores. This flaw allows a local user to starve the resources, causing a denial of service. The highest threat from this vulnerability is to system availability.

CVSS3: 5.5
nvd
почти 3 года назад

A memory overflow vulnerability was found in the Linux kernel’s ipc functionality of the memcg subsystem, in the way a user calls the semget function multiple times, creating semaphores. This flaw allows a local user to starve the resources, causing a denial of service. The highest threat from this vulnerability is to system availability.

CVSS3: 5.5
debian
почти 3 года назад

A memory overflow vulnerability was found in the Linux kernel\u2019s i ...

CVSS3: 5.5
github
почти 3 года назад

A memory overflow vulnerability was found in the Linux kernel’s ipc functionality of the memcg subsystem, in the way a user calls the semget function multiple times, creating semaphores. This flaw allows a local user to starve the resources, causing a denial of service. The highest threat from this vulnerability is to system availability.

CVSS3: 5.5
fstec
почти 4 года назад

Уязвимость функции semget() в модуле ipc/sem.c подсистемы межпроцессного взаимодействия IPC операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании

5.5 Medium

CVSS3

Уязвимость CVE-2021-3759