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CVE-2023-0386Linux Kernel Improper Ownership Management Vulnerability
A flaw was found in the Linux kernel, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalate their privileges on the system.
7.8 HIGHEPSS 7.88%⚡ Known Exploited (CISA KEV)NVD: Analyzed
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 7.8 | HIGH | 3.1NVD | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
CISA required action
⚡ Known exploited · remediation due Jul 8, 2025
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Details
- CVE ID
- CVE-2023-0386
- Status
- Analyzed
- Assigner (CNA)
- redhat
- Published
- Mar 22, 2023
- Last modified
- 2026-06-17 05:25 UTC
- Weaknesses
Affected Products
As published by the CNA in the CVE record.
Kernel1 version range
- Linux kernel 6.2-rc6
References
- packetstormsecurity.com http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html
- git.kernel.org https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4f11ada10d0a
- lists.debian.org https://lists.debian.org/debian-lts-announce/2023/06/msg00008.html
- lists.debian.org https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- security.netapp.com https://security.netapp.com/advisory/ntap-20230420-0004/
- debian.org https://www.debian.org/security/2023/dsa-5402
- cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-0386