CVE-2015-8953

Name: CVE-2015-8953
Creator: NVD / NIST
Published: 2016-10-16T21:59:03.067+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.54%

Last modified Jun 17, 2026

CVE-2015-8953 is a vulnerability of currently unknown severity. fs/overlayfs/copy_up.c in the Linux kernel before 4.2.6 uses an incorrect cleanup code path, which allows local users to cause a denial of service (dentry reference leak) via filesystem operations on a large file in a lower overlayfs layer.. EPSS estimates a 0.54% chance of exploitation in the next 30 days.

Description

fs/overlayfs/copy_up.c in the Linux kernel before 4.2.6 uses an incorrect cleanup code path, which allows local users to cause a denial of service (dentry reference leak) via filesystem operations on a large file in a lower overlayfs layer.

Metrics

EPSS Probability

0.54%

41.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-399

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	<= 4.2.5

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ab79efab0a0ba01a74df782eb7fa44b044dae8b5Exploit, Patch, Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.6Release Notes, Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/08/23/9Exploit, Third Party Advisory
http://www.securityfocus.com/bid/92611
https://bugzilla.redhat.com/show_bug.cgi?id=1367814Issue Tracking, Third Party Advisory, VDB Entry
https://github.com/torvalds/linux/commit/ab79efab0a0ba01a74df782eb7fa44b044dae8b5Patch
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ab79efab0a0ba01a74df782eb7fa44b044dae8b5Exploit, Patch, Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.6Release Notes, Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/08/23/9Exploit, Third Party Advisory
http://www.securityfocus.com/bid/92611
https://bugzilla.redhat.com/show_bug.cgi?id=1367814Issue Tracking, Third Party Advisory, VDB Entry
https://github.com/torvalds/linux/commit/ab79efab0a0ba01a74df782eb7fa44b044dae8b5Patch

Timeline

Published: Oct 16, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-8953?

How severe is CVE-2015-8953?

Severity scoring for CVE-2015-8953 is pending analysis. The EPSS model estimates a 0.54% probability of exploitation in the next 30 days.

How do I fix CVE-2015-8953?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-8953?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST