CVE-2015-4177

Medium

The collect_mounts function in fs/namespace.c in the Linux kernel before 4.0.5 does not properly consider that it may execute after a path has been unmounted, which allows local users to cause a denial of service (system crash) by leveraging user-namespace root access for an MNT_DETACH umount2 system call.

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

CVSS 3.0 score

5.5

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

References

7 total
Showing 5 of 7 references View all on NVD

Frequently asked questions

  • What is CVE-2015-4177?

    CVE-2015-4177 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2015-4177 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2015-4177?

    CVE-2015-4177 has a CVSS score of 5.5 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:N/I:N/A:H .

  • Is there a patch available for CVE-2015-4177?

    Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2015-4177 patch availability.

  • Is CVE-2015-4177 actively exploited?

    No. CVE-2015-4177 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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