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.

Project Subscriptions

Vendors Products
Linux Kernel Subscribe
Enterprise Linux Subscribe
Rhel Eus Subscribe
Advisories
Source ID Title
EUVD EUVD EUVD-2023-33538 A flaw was found in the Linux kernel's udmabuf device driver. The specific flaw exists within a fault handler. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an array. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the kernel.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 10 Aug 2026 18:15:00 +0000

Type Values Removed Values Added
Description A flaw was found in the Linux kernel's udmabuf device driver. The specific flaw exists within a fault handler. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an array. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the kernel. 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.
Title kernel: udmabuf: improper validation of array index leading to local privilege escalation Kernel: udmabuf: improper validation of array index leading to local privilege escalation
CPEs cpe:/a:redhat:enterprise_linux:9::appstream
cpe:/a:redhat:enterprise_linux:9::crb
cpe:/a:redhat:enterprise_linux:9::realtime
cpe:/a:redhat:rhel_eus:9.0::appstream
cpe:/a:redhat:rhel_eus:9.0::crb
cpe:/a:redhat:rhel_eus:9.0::realtime
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9::baseos
cpe:/o:redhat:rhel_eus:9.0::baseos
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H'}


Mon, 05 May 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-08-10T17:56:07.660Z

Reserved: 2023-04-12T00:00:00.000Z

Link: CVE-2023-2008

cve-icon Vulnrichment

Updated: 2024-08-02T06:05:27.108Z

cve-icon NVD

Status : Modified

Published: 2023-04-14T21:15:08.597

Modified: 2026-06-17T05:51:11.280

Link: CVE-2023-2008

cve-icon Redhat

Severity : Important

Publid Date: 2023-04-13T00:00:00Z

Links: CVE-2023-2008 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses