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ubuntucveUbuntu.comUB:CVE-2021-4155
HistoryDec 31, 2021 - 12:00 a.m.

CVE-2021-4155

2021-12-3100:00:00
ubuntu.com
ubuntu.com
15

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

1.7 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.0004 Low

EPSS

Percentile

5.3%

A data leak flaw was found in the way XFS_IOC_ALLOCSP IOCTL in the XFS
filesystem allowed for size increase of files with unaligned size. A local
attacker could use this flaw to leak data on the XFS filesystem otherwise
not accessible to them.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-169.177UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-100.113UNKNOWN
ubuntu21.10noarchlinux< 5.13.0-30.33UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-237.271) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1121.129UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1066.69UNKNOWN
ubuntu21.10noarchlinux-aws< 5.13.0-1014.15UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1116.122) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1154.169) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu20.04noarchlinux-aws-5.13< 5.13.0-1014.15~20.04.1UNKNOWN
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5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

1.7 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

0.0004 Low

EPSS

Percentile

5.3%