CVE-2021-3739

Katalog CVE

CVSS 7.1 · High EPSS 0,62%

Kerentanan NULL Pointer Dereference pada linux kernel, fedoraproject fedora +8 lainnya. Skor CVSS 3.1 7.1 (High) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

10 Maret 2022

Terakhir diubah

1 September 2026

Status NVD

Analyzed

CVSS 3.1

7.1 (High), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-476: NULL Pointer Dereference

EPSS (30 hari)

0,62% peluang dieksploitasi; lebih tinggi dari 48,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e4571b8c5e9ffa1e85c0c671995bd4dc... mailing list · patch · advisory vendor
• https://bugzilla.redhat.com/show_bug.cgi?id=1997958 issue tracking · patch · advisory pihak ketiga
• https://github.com/torvalds/linux/commit/e4571b8c5e9ffa1e85c0c671995bd4dcc5c75091 exploit · patch · advisory pihak ketiga
• https://www.openwall.com/lists/oss-security/2021/08/25/3 mailing list · patch · advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20220407-0006/ advisory pihak ketiga
• https://ubuntu.com/security/CVE-2021-3739 advisory pihak ketiga