CVE-2015-8952

Medium

The mbcache feature in the ext2 and ext4 filesystem implementations in the Linux kernel before 4.6 mishandles xattr block caching, which allows local users to cause a denial of service (soft lockup) via filesystem operations in environments that use many attributes, as demonstrated by Ceph and Samba.

Package Linux Kernel
Published 2016-10-16
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

Weakness type

CWE-19

CVE-2015-8952 is classified as CWE-19

See CWE-19 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2015-8952 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

7 patch commits total View all on NVD

Frequently asked questions

  • What is CVE-2015-8952?

    CVE-2015-8952 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2015-8952 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2015-8952?

    CVE-2015-8952 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-2015-8952?

    No patch is currently available for CVE-2015-8952. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

  • Is CVE-2015-8952 actively exploited?

    No — CVE-2015-8952 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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