What is CVE-2023-3161?

CVE-2023-3161 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10. CVE-2023-3161 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-3161?

CVE-2023-3161 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2023-3161?

No patch is currently available for CVE-2023-3161. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2023-3161 actively exploited?

CVE-2023-3161 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-3161

Medium

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.

Package Linux Kernel

Published 2023-06-12

Last modified 2025-03-11

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-1335

CVE-2023-3161 is classified as CWE-1335

See CWE-1335 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2023-3161 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://bugzilla.redhat.com/show_bug.cgi?id=2213485
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/2b09d5d364986f724f17001ccfe4126b9b43a0be
Patch

Details

CVE ID CVE-2023-3161

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2023-06-12

Modified 2025-03-11

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2023-3161?

CVE-2023-3161 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2023-3161 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-3161?

CVE-2023-3161 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2023-3161?

No patch is currently available for CVE-2023-3161. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2023-3161 actively exploited?

No — CVE-2023-3161 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.