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CVE-2021-20226

Опубликовано: 23 фев. 2021
Источник: nvd
CVSS3: 7.8
CVSS2: 6.1
EPSS Низкий

Описание

A use-after-free flaw was found in the io_uring in Linux kernel, where a local attacker with a user privilege could cause a denial of service problem on the system The issue results from the lack of validating the existence of an object prior to performing operations on the object by not incrementing the file reference counter while in use. The highest threat from this vulnerability is to data integrity, confidentiality and system availability.

Уязвимые конфигурации

Конфигурация 1

Одно из

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Версия от 5.5 (включая) до 5.8.18 (исключая)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Версия от 5.9.0 (включая) до 5.9.3 (исключая)
Конфигурация 2
cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*

EPSS

Процентиль: 35%
0.00146
Низкий

7.8 High

CVSS3

6.1 Medium

CVSS2

Дефекты

CWE-416
CWE-416

Связанные уязвимости

CVSS3: 7.8
ubuntu
почти 5 лет назад

A use-after-free flaw was found in the io_uring in Linux kernel, where a local attacker with a user privilege could cause a denial of service problem on the system The issue results from the lack of validating the existence of an object prior to performing operations on the object by not incrementing the file reference counter while in use. The highest threat from this vulnerability is to data integrity, confidentiality and system availability.

CVSS3: 7.8
redhat
около 5 лет назад

A use-after-free flaw was found in the io_uring in Linux kernel, where a local attacker with a user privilege could cause a denial of service problem on the system The issue results from the lack of validating the existence of an object prior to performing operations on the object by not incrementing the file reference counter while in use. The highest threat from this vulnerability is to data integrity, confidentiality and system availability.

CVSS3: 7.8
debian
почти 5 лет назад

A use-after-free flaw was found in the io_uring in Linux kernel, where ...

CVSS3: 7.8
github
больше 3 лет назад

A use-after-free flaw was found in the io_uring in Linux kernel, where a local attacker with a user privilege could cause a denial of service problem on the system The issue results from the lack of validating the existence of an object prior to performing operations on the object by not incrementing the file reference counter while in use. The highest threat from this vulnerability is to data integrity, confidentiality and system availability.

CVSS3: 7.8
fstec
больше 5 лет назад

Уязвимость интерфейса асинхронного ввода/вывода io_uring ядра операционной системы Linux, позволяющая нарушителю оказать воздействие на конфиденциальность, целостность и доступность защищаемой информации

EPSS

Процентиль: 35%
0.00146
Низкий

7.8 High

CVSS3

6.1 Medium

CVSS2

Дефекты

CWE-416
CWE-416