VULNERABILITY INTELLIGENCE

CVE-2014-9717

CVSS score6.1 MEDIUM
EPSS probability0.33%
CISA KEVNot currently listed
Published2016-05-02
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

Description

fs/namespace.c in the Linux kernel before 4.0.2 processes MNT_DETACH umount2 system calls without verifying that the MNT_LOCKED flag is unset, which allows local users to bypass intended access restrictions and navigate to filesystem locations beneath a mount by calling umount2 within a user namespace.

Weakness classification

  • CWE-284: Improper Access Control

Primary references