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.

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Advisories
Source ID Title
EUVD EUVD EUVD-2023-43845 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.
Ubuntu USN Ubuntu USN USN-6222-1 Linux kernel (Xilinx ZynqMP) vulnerabilities
Ubuntu USN Ubuntu USN USN-6254-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6256-1 Linux kernel (IoT) vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 11 Mar 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2025-03-11T14:54:29.577Z

Reserved: 2023-06-08T00:00:00.000Z

Link: CVE-2023-3161

cve-icon Vulnrichment

Updated: 2024-08-02T06:48:07.681Z

cve-icon NVD

Status : Modified

Published: 2023-06-12T20:15:12.910

Modified: 2025-03-11T15:15:39.120

Link: CVE-2023-3161

cve-icon Redhat

Severity : Moderate

Publid Date: 2023-01-25T00:00:00Z

Links: CVE-2023-3161 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses