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ubuntucveUbuntu.comUB:CVE-2023-3567
HistoryJul 24, 2023 - 12:00 a.m.

CVE-2023-3567

2023-07-2400:00:00
ubuntu.com
ubuntu.com
15

7.1 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

3.2 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

5.2%

A use-after-free flaw was found in vcs_read in drivers/tty/vt/vc_screen.c
in vc_screen in the Linux Kernel. This issue may allow an attacker with
local user access to cause a system crash or leak internal kernel
information.

Bugs

Notes

Author Note
Priority reason: A use-after-free that may be controlled by an unprivileged user which can lead to local privilege escalation.
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< anyUNKNOWN
ubuntu20.04noarchlinux< 5.4.0-149.166UNKNOWN
ubuntu22.04noarchlinux< 5.15.0-72.79UNKNOWN
ubuntu14.04noarchlinux< 3.13.0-193.244) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchlinux< 4.4.0-244.278) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu22.04noarchlinux-allwinner-5.19< 5.19.0-1012.12~22.04.1UNKNOWN
ubuntu18.04noarchlinux-aws< anyUNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1102.110UNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1036.40UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1122.128) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
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7.1 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

3.2 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.0004 Low

EPSS

Percentile

5.2%