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ubuntucveUbuntu.comUB:CVE-2021-4149
HistoryMar 23, 2022 - 12:00 a.m.

CVE-2021-4149

2022-03-2300:00:00
ubuntu.com
ubuntu.com
45

5.5 Medium

CVSS3

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

2.1 Low

CVSS2

Access Vector

LOCAL

Access 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

0.001 Low

EPSS

Percentile

20.4%

JSON

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.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-184.194UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-92.103UNKNOWN
ubuntu21.10noarchlinux< 5.13.0-23.23UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-239.273) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1133.143UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1061.64UNKNOWN
ubuntu21.10noarchlinux-aws< 5.13.0-1008.9UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1117.123) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1155.170) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu20.04noarchlinux-aws-5.11< 5.11.0-1023.24~20.04.1UNKNOWN
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5.5 Medium

CVSS3

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

2.1 Low

CVSS2

Access Vector

LOCAL

Access 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

0.001 Low

EPSS

Percentile

20.4%

JSON
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