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ubuntucveUbuntu.comUB:CVE-2021-31916
HistoryApr 30, 2021 - 12:00 a.m.

CVE-2021-31916

2021-04-3000:00:00
ubuntu.com
ubuntu.com
32

6.1 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

COMPLETE

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

6.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

14.2%

An out-of-bounds (OOB) memory write flaw was found in list_devices in
drivers/md/dm-ioctl.c in the Multi-device driver module in the Linux kernel
before 5.12. A bound check failure allows an attacker with special user
(CAP_SYS_ADMIN) privilege to gain access to out-of-bounds memory leading to
a system crash or a leak of internal kernel information. The highest threat
from this vulnerability is to system availability.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-144.148UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-74.83UNKNOWN
ubuntu20.10noarchlinux< 5.8.0-55.62UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-223.256UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1103.110UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1049.51UNKNOWN
ubuntu20.10noarchlinux-aws< 5.8.0-1035.37UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1103.108UNKNOWN
ubuntu16.04noarchlinux-aws< 4.4.0-1139.153UNKNOWN
ubuntu18.04noarchlinux-aws-5.4< 5.4.0-1049.51~18.04.1UNKNOWN
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6.1 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

COMPLETE

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

6.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

14.2%