CVE record · CVE-2023-2008

Kernel: udmabuf: improper validation of array index leading to local privilege escalation

CVSS 8.2 HighEPSS 0.010 · 63rd percentile

Published by the CVE Program (CNA: redhat) at 14 Apr 2023, 00:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Linux	kernel Package name: kernel https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/	affected 4.20 to before 5.4.202 semver affected 5.5 to before 5.10.127 semver affected 5.11 to before 5.15.51 semver affected 5.16 to before 5.18.8 semver unaffected 5.19 semver Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 9 Package name: kernel https://access.redhat.com/downloads/content/package-browser/	unaffected 0:5.14.0-162.6.1.el9_1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: kernel-rt https://access.redhat.com/downloads/content/package-browser/	unaffected 0:5.14.0-162.6.1.rt21.168.el9_1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: kernel https://access.redhat.com/downloads/content/package-browser/	unaffected 0:5.14.0-162.6.1.el9_1 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.0 Extended Update Support Package name: kernel https://access.redhat.com/downloads/content/package-browser/	unaffected 0:5.14.0-70.58.1.el9_0 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.0 Extended Update Support Package name: kernel-rt https://access.redhat.com/downloads/content/package-browser/	unaffected 0:5.14.0-70.58.1.rt21.129.el9_0 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.0 Extended Update Support Package name: kpatch-patch https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 6 Package name: kernel https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 7 Package name: kernel https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 7 Package name: kernel-rt https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 8 Package name: kernel https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 8 Package name: kernel-rt https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: unaffected

Identifiers: CVE-2023-2008
CNA: redhat
Weakness (CWE): CWE-129
Tags: Linux kernel
Red Hat Enterprise Linux 9
Red Hat Enterprise Linux 9.0 Extended Update Support
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
CWE-129
Published: 14 Apr 2023
Updated: 10 Aug 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
8.2	High	3.1	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H	CNA (redhat)Used for this record
7.8	High	3.1	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	ADP (CISA-ADP)

CISA KEV Not listed.
EPSS 0.010, the 63rd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 14 Apr 2023. New records show when each source confirmed them.

Sources

References from the CNA

access.redhat.com/errata/RHSA-2022:7933 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2022:8267 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2023:3465 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2023:3470 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2023:3490 vendor-advisoryredhat
access.redhat.com/security/cve/CVE-2023-2008 vdb-entryredhat
bugzilla.redhat.com/show_bug.cgi?id=2186862 issue-trackingredhat
www.zerodayinitiative.com/advisories/ZDI-23-441/

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.