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CVE-2023-3161

nvd nist
Published: Jun 12, 2023Modified: Jun 17, 2026

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5.5
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploitability: 1.8 / Impact: 3.6
Source: NVD

Description

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.

Affected (10)

Linux
1 product
Linux Kernel
Fedoraproject
1 product
Fedora
Redhat
1 product
Enterprise Linux
Configuration A
7 vulnerable
Vulnerable SoftwareAffected Versions
Linux
Linux Kernel
Before 6.2
Linux Kernel
Version 6.2 rc1
Linux Kernel
Version 6.2 rc2
Linux Kernel
Version 6.2 rc3
Linux Kernel
Version 6.2 rc4
Linux Kernel
Version 6.2 rc5
Linux Kernel
Version 6.2 rc6
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Fedora
Version 38
Configuration C
2 vulnerable
Vulnerable SoftwareAffected Versions
Redhat
Enterprise Linux
Version 8.0
Enterprise Linux
Version 9.0

Related CWEs

CWE-1335
Incorrect Bitwise Shift of Integer
An integer value is specified to be shifted by a negative amount or an amount greater than or equal to the number of bits contained in the value causing an unexpected or indeterminate result.
CWE-682
Incorrect Calculation
The product performs a calculation that generates incorrect or unintended results that are later used in security-critical decisions or resource management.

References (4)

Source: secalert@redhat.com
Issue TrackingPatchThird Party Advisory
Source: secalert@redhat.com
Patch
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingPatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Patch

Timeline

No history available yet.