CVE-2014-9717

Medium

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.

Package Linux Kernel
Published 2016-05-02
Last modified 2026-05-06
CVSS version 3.0
Patch available
Awaiting data

CVSS 3.0 score

6.1

out of 10
Medium
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
None
Vector string
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

Weakness type

CWE-284

CVE-2014-9717 is a Improper Access Control vulnerability

What is Improper Access Control?

The product does not restrict or incorrectly restricts access to a resource from an unauthorised actor. Learn more on MITRE CWE

References

11 total
Showing 5 of 11 references View all on NVD

Frequently asked questions

  • What is CVE-2014-9717?

    CVE-2014-9717 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.1 out of 10 , classified as an Improper Access Control flaw (CWE-284) . CVE-2014-9717 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2014-9717?

    CVE-2014-9717 has a CVSS score of 6.1 out of 10, rated Medium severity (CVSS 3.0). The vector string is CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N .

  • Is there a patch available for CVE-2014-9717?

    Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2014-9717 patch availability.

  • Is CVE-2014-9717 actively exploited?

    No. CVE-2014-9717 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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