CVE-2023-0386: Linux Kernel Improper Ownership Management Vulnerability
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. 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.
· high severity · unattributed attribution
Evidence and provenance
- Original source
- CISA KEV report ↗
- Published
- 2025-06-17T00:00:00Z
- Confidence basis
- No actor match
- Record ID
e70da3543677e1fa7c27
Vulnerabilities
CVE-2023-0386
Use and citation
Verify the original report before making operational decisions. Cite this permanent page together with the original source, publication date, confidence level, and review status.