CVE-2023-0386: Linux Kernel Improper Ownership Management Vulnerability
In CISA’s Known Exploited Vulnerabilities catalog: Linux Kernel Improper Ownership Management Vulnerability.
Added , federal remediation due . Known ransomware use: Unknown.
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.
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.
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · CWE-282
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
Kernel
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html (opens in new tab)
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ (opens in new tab)
- lists.debian.org/debian-lts-announce/2023/06/msg00008.html (opens in new tab)
- lists.debian.org/debian-lts-announce/2024/06/msg00020.html (opens in new tab)
- security.netapp.com/advisory/ntap-20230420-0004/ (opens in new tab)
- www.debian.org/security/2023/dsa-5402 (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)