Linux Kernel Improper Ownership Management Vulnerability
Summary
| CVE | CVE-2023-0386 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2023-03-22 21:15:00 UTC |
| Updated | 2023-06-26 16:56:00 UTC |
| Description | 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. |
Risk And Classification
EPSS: 0.519920000 probability, percentile 0.978910000 (date 2026-04-01)
CISA KEV: Listed on 2025-06-17; due 2025-07-08; ransomware use Unknown
Problem Types: NVD-CWE-Other
CISA Known Exploited Vulnerability
| Vendor | Linux |
|---|---|
| Product | Kernel |
| Name | Linux Kernel Improper Ownership Management Vulnerability |
| Required Action | Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. |
| Notes | This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. For more information, please see: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4f11ada10d0a ; https://access.redhat.com/security/cve/cve-2023-0386 ; https://security.netapp.com/advisory/ntap-20230420-0004/ ; https://nvd.nist.gov/vuln/detail/CVE-2023-0386 |
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Linux | Linux Kernel | All | All | All | All |
| Operating System | Linux | Linux Kernel | 6.2 | rc1 | All | All |
| Operating System | Linux | Linux Kernel | 6.2 | rc2 | All | All |
| Operating System | Linux | Linux Kernel | 6.2 | rc3 | All | All |
| Operating System | Linux | Linux Kernel | 6.2 | rc4 | All | All |
| Operating System | Linux | Linux Kernel | 6.2 | rc5 | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Kernel Live Patch Security Notice LSN-0095-1 ≈ Packet Storm | MISC | packetstormsecurity.com | |
| kernel/git/torvalds/linux.git - Linux kernel source tree | MISC | git.kernel.org | |
| [SECURITY] [DLA 3446-1] linux-5.10 security update | MLIST | lists.debian.org | |
| CVE-2023-0386 Linux Kernel Vulnerability in NetApp Products | NetApp Product Security | CONFIRM | security.netapp.com | |
| Debian -- Security Information -- DSA-5402-1 linux | DEBIAN | www.debian.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
| CISA Known Exploited Vulnerabilities catalog | CISA | www.cisa.gov | kev |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 160537 Oracle Enterprise Linux Security Update for kernel (ELSA-2023-1566)
- 160546 Oracle Enterprise Linux Security Update for kernel (ELSA-2023-1703)
- 181781 Debian Security Update for linux (DSA 5402-1)
- 181828 Debian Security Update for linux-5.10 (DLA 3446-1)
- 183291 Debian Security Update for linux (CVE-2023-0386)
- 199292 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6025-1)
- 199303 Ubuntu Security Notification for Linux kernel (HWE) Vulnerabilities (USN-6040-1)
- 199306 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-6043-1)
- 199321 Ubuntu Security Notification for Linux kernel (Intel IoTG) Vulnerabilities (USN-6057-1)
- 199330 Ubuntu Security Notification for Linux kernel (OEM) Vulnerabilities (USN-6072-1)
- 199334 Ubuntu Security Notification for Linux kernel (OEM) Vulnerabilities (USN-6071-1)
- 199385 Ubuntu Security Notification for Linux kernel (Intel IoTG) Vulnerabilities (USN-6134-1)
- 241305 Red Hat Update for kernel security (RHSA-2023:1554)
- 241310 Red Hat Update for kernel-rt (RHSA-2023:1584)
- 241324 Red Hat Update for kernel security (RHSA-2023:1566)
- 241328 Red Hat Update for kpatch-patch (RHSA-2023:1659)
- 241329 Red Hat Update for kpatch-patch (RHSA-2023:1660)
- 241334 Red Hat Update for kpatch-patch (RHSA-2023:1681)
- 241336 Red Hat Update for kernel-rt (RHSA-2023:1691)
- 241337 Red Hat Update for kernel (RHSA-2023:1703)
- 241379 Red Hat Update for kernel (RHSA-2023:1970)
- 241381 Red Hat Update for kpatch-patch (RHSA-2023:1984)
- 241394 Red Hat Update for kernel-rt (RHSA-2023:1980)
- 378537 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX3-SA-2023:0048)
- 378710 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX3-SA-2023:0079)
- 906846 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (25742-1)
- 907052 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (25752-1)
- 907121 Common Base Linux Mariner (CBL-Mariner) Security Update for hyperv-daemons (25904-1)
- 940970 AlmaLinux Security Update for kernel (ALSA-2023:1566)
- 940974 AlmaLinux Security Update for kernel-rt (ALSA-2023:1584)
- 940982 AlmaLinux Security Update for kernel (ALSA-2023:1703)
- 940991 AlmaLinux Security Update for kernel-rt (ALSA-2023:1691)
- 960903 Rocky Linux Security Update for kernel (RLSA-2023:1566)
- 960918 Rocky Linux Security Update for kernel-rt (RLSA-2023:1584)