CVE-2023-3161

2023-06-1200:00:00

ubuntu.com

104

linux kernel

framebuffer console

denial of service

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

0.0004 Low

EPSS

Percentile

9.0%

JSON

A flaw was found in the Framebuffer Console (fbcon) in the Linux Kernel.
When providing font->width and font->height greater than 32 to
fbcon_set_font, since there are no checks in place, a shift-out-of-bounds
occurs leading to undefined behavior and possible denial of service.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< anyUNKNOWN
ubuntu20.04noarchlinux< 5.4.0-149.166UNKNOWN
ubuntu22.04noarchlinux< 5.15.0-72.79UNKNOWN
ubuntu22.10noarchlinux< 5.19.0-42.43UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-243.277UNKNOWN
ubuntu18.04noarchlinux-aws< anyUNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1102.110UNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1036.40UNKNOWN
ubuntu22.10noarchlinux-aws< 5.19.0-1025.26UNKNOWN
ubuntu14.04noarchlinux-aws< 4.4.0-1121.127UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	linux	< any	UNKNOWN
ubuntu	20.04	noarch	linux	< 5.4.0-149.166	UNKNOWN
ubuntu	22.04	noarch	linux	< 5.15.0-72.79	UNKNOWN
ubuntu	22.10	noarch	linux	< 5.19.0-42.43	UNKNOWN
ubuntu	16.04	noarch	linux	< 4.4.0-243.277	UNKNOWN
ubuntu	18.04	noarch	linux-aws	< any	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< 5.4.0-1102.110	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< 5.15.0-1036.40	UNKNOWN
ubuntu	22.10	noarch	linux-aws	< 5.19.0-1025.26	UNKNOWN
ubuntu	14.04	noarch	linux-aws	< 4.4.0-1121.127	UNKNOWN