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.
Published: 2016-05-02
Score: 6.1 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2014-9524 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.
History

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Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-06T13:55:04.157Z

Reserved: 2015-04-17T00:00:00.000Z

Link: CVE-2014-9717

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2016-05-02T10:59:06.593

Modified: 2026-05-06T22:30:45.220

Link: CVE-2014-9717

cve-icon Redhat

Severity : Low

Publid Date: 2014-10-07T00:00:00Z

Links: CVE-2014-9717 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses