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CVE-2021-3739

Опубликовано: 15 мар. 2022
Источник: msrc
CVSS3: 7.1
EPSS Низкий

Описание

A NULL pointer dereference flaw was found in the btrfs_rm_device function in fs/btrfs/volumes.c in the Linux Kernel where triggering the bug requires ‘CAP_SYS_ADMIN’. This flaw allows a local attacker to crash the system or leak kernel internal information. The highest threat from this vulnerability is to system availability.

FAQ

Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?

One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.

EPSS

Процентиль: 8%
0.00029
Низкий

7.1 High

CVSS3

Связанные уязвимости

CVSS3: 7.1
ubuntu
почти 4 года назад

A NULL pointer dereference flaw was found in the btrfs_rm_device function in fs/btrfs/volumes.c in the Linux Kernel, where triggering the bug requires ‘CAP_SYS_ADMIN’. This flaw allows a local attacker to crash the system or leak kernel internal information. The highest threat from this vulnerability is to system availability.

CVSS3: 6.2
redhat
больше 4 лет назад

A NULL pointer dereference flaw was found in the btrfs_rm_device function in fs/btrfs/volumes.c in the Linux Kernel, where triggering the bug requires ‘CAP_SYS_ADMIN’. This flaw allows a local attacker to crash the system or leak kernel internal information. The highest threat from this vulnerability is to system availability.

CVSS3: 7.1
nvd
почти 4 года назад

A NULL pointer dereference flaw was found in the btrfs_rm_device function in fs/btrfs/volumes.c in the Linux Kernel, where triggering the bug requires ‘CAP_SYS_ADMIN’. This flaw allows a local attacker to crash the system or leak kernel internal information. The highest threat from this vulnerability is to system availability.

CVSS3: 7.1
debian
почти 4 года назад

A NULL pointer dereference flaw was found in the btrfs_rm_device funct ...

oracle-oval
больше 4 лет назад

ELSA-2021-9461: Unbreakable Enterprise kernel-container security update (IMPORTANT)

EPSS

Процентиль: 8%
0.00029
Низкий

7.1 High

CVSS3