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CVE-2021-4001

Опубликовано: 21 янв. 2022
Источник: nvd
CVSS3: 4.1
CVSS2: 4.7
EPSS Низкий

Описание

A race condition was found in the Linux kernel's ebpf verifier between bpf_map_update_elem and bpf_map_freeze due to a missing lock in kernel/bpf/syscall.c. In this flaw, a local user with a special privilege (cap_sys_admin or cap_bpf) can modify the frozen mapped address space. This flaw affects kernel versions prior to 5.16 rc2.

Уязвимые конфигурации

Конфигурация 1

Одно из

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Версия до 5.15 (включая)
cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:*

EPSS

Процентиль: 3%
0.00016
Низкий

4.1 Medium

CVSS3

4.7 Medium

CVSS2

Дефекты

CWE-367
CWE-367

Связанные уязвимости

CVSS3: 4.1
ubuntu
около 4 лет назад

A race condition was found in the Linux kernel's ebpf verifier between bpf_map_update_elem and bpf_map_freeze due to a missing lock in kernel/bpf/syscall.c. In this flaw, a local user with a special privilege (cap_sys_admin or cap_bpf) can modify the frozen mapped address space. This flaw affects kernel versions prior to 5.16 rc2.

CVSS3: 6.7
redhat
около 4 лет назад

A race condition was found in the Linux kernel's ebpf verifier between bpf_map_update_elem and bpf_map_freeze due to a missing lock in kernel/bpf/syscall.c. In this flaw, a local user with a special privilege (cap_sys_admin or cap_bpf) can modify the frozen mapped address space. This flaw affects kernel versions prior to 5.16 rc2.

CVSS3: 4.1
msrc
около 4 лет назад

Описание отсутствует

CVSS3: 4.1
debian
около 4 лет назад

A race condition was found in the Linux kernel's ebpf verifier between ...

CVSS3: 4.1
github
около 4 лет назад

A race condition was found in the Linux kernel's ebpf verifier between bpf_map_update_elem and bpf_map_freeze due to a missing lock in kernel/bpf/syscall.c. In this flaw, a local user with a special privilege (cap_sys_admin or cap_bpf) can modify the frozen mapped address space. This flaw affects kernel versions prior to 5.16 rc2.

EPSS

Процентиль: 3%
0.00016
Низкий

4.1 Medium

CVSS3

4.7 Medium

CVSS2

Дефекты

CWE-367
CWE-367