What is CVE-2023-2008?

CVE-2023-2008 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, affecting Linux kernel versions from 4.20 onward and patched in 5.19. CVE-2023-2008 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-2008?

CVE-2023-2008 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2023-2008?

Yes, CVE-2023-2008 has been patched. Fixed versions include 5.19. If you are running Linux kernel 4.20 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-2008 actively exploited?

CVE-2023-2008 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-2008

High

A flaw was found in the Linux kernel's udmabuf device driver, within a fault handler. This issue occurs due to the lack of proper validation of user-supplied data, which can result in memory access past the end of an array. This may allow an attacker to escalate privileges and execute arbitrary code in the context of the kernel.

Package Linux Kernel

Published 2023-04-14

Last modified 2026-08-10

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-129

CVE-2023-2008 is classified as CWE-129

See CWE-129 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 4.20, 5.5, 5.11, 5.16 and later are affected. Fixed in 5.19 and their respective stable series.

Affected from

≥ 4.20 ≥ 5.5 ≥ 5.11 ≥ 5.16

Fixed in

✓ 5.19 5.19.x

References

10 total

Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=2186862

Issue Tracking Patch Third Party Advisory
GitHub
https://github.com/torvalds/linux/commit/05b252cccb2e5c3f56119d25de684b4f810ba4

Patch
Red Hat
https://access.redhat.com/errata/RHSA-2022:7933
Red Hat
https://access.redhat.com/errata/RHSA-2022:8267
Red Hat
https://access.redhat.com/errata/RHSA-2023:3465

Showing 5 of 10 references View all on NVD

Details

CVE ID CVE-2023-2008

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2023-04-14

Modified 2026-08-10

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2023-2008?

CVE-2023-2008 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 4.20 onward and has been patched in 5.19. CVE-2023-2008 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-2008?

CVE-2023-2008 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2023-2008?

Yes. CVE-2023-2008 has been patched. Fixed versions include 5.19. If you are running Linux kernel 4.20 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-2008 actively exploited?

No. CVE-2023-2008 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.