CVE-2023-2008
Medium
Elevated severity or exploit probability.
CVSS base
8.2
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
1.0%
61.6th percentile
CISA KEV
Not listed
Weakness / dates
CWE-129
Published 2023-04-14 · modified 2026-08-10
CVSS breakdown
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
| Attack Vector | L | Local |
| Attack Complexity | L | Low |
| Privileges Required | H | High |
| User Interaction | N | None |
| Scope | C | Changed |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | H | High |
Timeline
- 2023-04-14 — Published (NVD)
- 2026-08-10 — Last modified (NVD)
Description
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.
Affected
References
- https://access.redhat.com/errata/RHSA-2022:7933
- https://access.redhat.com/errata/RHSA-2022:8267
- https://access.redhat.com/errata/RHSA-2023:3465
- https://access.redhat.com/errata/RHSA-2023:3470
- https://access.redhat.com/errata/RHSA-2023:3490
- https://access.redhat.com/security/cve/CVE-2023-2008
- https://bugzilla.redhat.com/show_bug.cgi?id=2186862
- https://www.zerodayinitiative.com/advisories/ZDI-23-441/
- https://bugzilla.redhat.com/show_bug.cgi?id=2186862
- https://github.com/torvalds/linux/commit/05b252cccb2e5c3f56119d25de684b4f810ba4
- https://security.netapp.com/advisory/ntap-20230517-0007/
- https://www.zerodayinitiative.com/advisories/ZDI-23-441/