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nvd[email protected]NVD:CVE-2021-4149
HistoryMar 23, 2022 - 8:15 p.m.

CVE-2021-4149

2022-03-2320:15:09
CWE-667
web.nvd.nist.gov
7
btrfs
vulnerability
denial of service
deadlock

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:N/I:N/A:P

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.001

Percentile

21.6%

A vulnerability was found in btrfs_alloc_tree_b in fs/btrfs/extent-tree.c in the Linux kernel due to an improper lock operation in btrfs. In this flaw, a user with a local privilege may cause a denial of service (DOS) due to a deadlock problem.

Affected configurations

Nvd
Node
linuxlinux_kernelRange<5.15
OR
linuxlinux_kernelMatch5.15-
OR
linuxlinux_kernelMatch5.15rc1
OR
linuxlinux_kernelMatch5.15rc2
OR
linuxlinux_kernelMatch5.15rc3
OR
linuxlinux_kernelMatch5.15rc4
OR
linuxlinux_kernelMatch5.15rc5
Node
debiandebian_linuxMatch9.0
VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linuxlinux_kernel5.15cpe:2.3:o:linux:linux_kernel:5.15:-:*:*:*:*:*:*
linuxlinux_kernel5.15cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*
linuxlinux_kernel5.15cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*
linuxlinux_kernel5.15cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*
linuxlinux_kernel5.15cpe:2.3:o:linux:linux_kernel:5.15:rc4:*:*:*:*:*:*
linuxlinux_kernel5.15cpe:2.3:o:linux:linux_kernel:5.15:rc5:*:*:*:*:*:*
debiandebian_linux9.0cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:N/I:N/A:P

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.001

Percentile

21.6%