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

Vulnerability Name

Linux Kernel Improper Ownership Management Vulnerability

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

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