CVE-2023-0386: Linux Kernel Improper Ownership Management Vulnerability

CVE ID

CVE-2023-0386

Vulnerability Name

Linux Kernel Improper Ownership Management Vulnerability

• Project: Linux
• Product: Kernel

Date

• Date Added: 2025-06-17
• Due Date: 2025-07-08

Description

Linux Kernel contains an improper ownership management vulnerability, 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.

Known To Be Used in Ransomware Campaigns?

Unknown

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.

Additional 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

Related Security News

• CISA warns of attackers exploiting Linux flaw with PoC exploit
• CISA Warns of Active Exploitation of Linux Kernel Privilege Escalation Vulnerability

More CVEs Info

Common Vulnerabilities & Exposures (CVE) List