1. Home
  2. Vulnerabilities
  3. CVE-2015-8953
5.5
MEDIUM CVSS 3.0
CVE-2015-8953
Linux Kernel OverlayFS Denial of Service
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.

INFO

Published Date :

Oct. 16, 2016, 9:59 p.m.

Last Modified :

April 12, 2025, 10:46 a.m.

Remotely Exploit :

No

Source :

[email protected]
Affected Products

The following products are affected by CVE-2015-8953 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.0 MEDIUM [email protected]
Solution
The Linux kernel is vulnerable; updating the kernel packages will remediate this vulnerability.
  • Update the Linux kernel packages.
  • Reboot the system after updating.
Public PoC/Exploit Available at Github

CVE-2015-8953 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2015-8953.

URL Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ab79efab0a0ba01a74df782eb7fa44b044dae8b5 Exploit Patch Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.6 Release Notes Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/08/23/9 Exploit Third Party Advisory
http://www.securityfocus.com/bid/92611
https://bugzilla.redhat.com/show_bug.cgi?id=1367814 Issue Tracking Third Party Advisory VDB Entry
https://github.com/torvalds/linux/commit/ab79efab0a0ba01a74df782eb7fa44b044dae8b5 Patch
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ab79efab0a0ba01a74df782eb7fa44b044dae8b5 Exploit Patch Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.6 Release Notes Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/08/23/9 Exploit Third Party Advisory
http://www.securityfocus.com/bid/92611
https://bugzilla.redhat.com/show_bug.cgi?id=1367814 Issue Tracking Third Party Advisory VDB Entry
https://github.com/torvalds/linux/commit/ab79efab0a0ba01a74df782eb7fa44b044dae8b5 Patch
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2015-8953 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2015-8953 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
vincent-deng/veracode-container-security-finding-parser

Map Vulnerabilities into Different Layers of the Container Image

Python

Updated: 2 years, 7 months ago
1 stars 1 fork 1 watcher
Born at : Oct. 5, 2022, 12:07 p.m. This repo has been linked 1277 different CVEs too.
Profile Photo
thdusdl1219/CVE-Study

None

Python

Updated: 2 months ago
11 stars 1 fork 1 watcher
Born at : Aug. 30, 2017, 2:37 p.m. This repo has been linked 1269 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2015-8953 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2015-8953 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ab79efab0a0ba01a74df782eb7fa44b044dae8b5
    Added Reference http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.6
    Added Reference http://www.openwall.com/lists/oss-security/2016/08/23/9
    Added Reference http://www.securityfocus.com/bid/92611
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1367814
    Added Reference https://github.com/torvalds/linux/commit/ab79efab0a0ba01a74df782eb7fa44b044dae8b5
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 28, 2016

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/92611 [No Types Assigned]
  • Modified Analysis by [email protected]

    Oct. 17, 2016

    Action Type Old Value New Value
    Added CPE Configuration Configuration 1 OR *cpe:2.3:o:linux:linux_kernel:4.2.5:*:*:*:*:*:*:* (and previous)
    Added CVSS V2 (AV:L/AC:L/Au:N/C:N/I:N/A:C)
    Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ab79efab0a0ba01a74df782eb7fa44b044dae8b5 No Types Assigned http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ab79efab0a0ba01a74df782eb7fa44b044dae8b5 Vendor Advisory, Exploit, Patch
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1367814 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1367814 Third Party Advisory, VDB Entry, Issue Tracking
    Changed Reference Type https://github.com/torvalds/linux/commit/ab79efab0a0ba01a74df782eb7fa44b044dae8b5 No Types Assigned https://github.com/torvalds/linux/commit/ab79efab0a0ba01a74df782eb7fa44b044dae8b5 Patch
    Changed Reference Type http://www.openwall.com/lists/oss-security/2016/08/23/9 No Types Assigned http://www.openwall.com/lists/oss-security/2016/08/23/9 Third Party Advisory, Exploit
    Changed Reference Type http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.6 No Types Assigned http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.6 Release Notes, Vendor Advisory
    Added CWE CWE-399
  • CVE Translated by [email protected]

    Oct. 17, 2016

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Oct. 17, 2016

    Action Type Old Value New Value
    Changed CPE Configuration Configuration 1 OR Configuration 1 OR *cpe:2.3:o:linux:linux_kernel:4.2.5:*:*:*:*:*:*:* (and previous)
    Added CVSS V2 (AV:L/AC:L/Au:N/C:N/I:N/A:C)
    Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ab79efab0a0ba01a74df782eb7fa44b044dae8b5 No Types Assigned http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ab79efab0a0ba01a74df782eb7fa44b044dae8b5 Exploit, Patch, Vendor Advisory
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1367814 Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1367814 Issue Tracking, Third Party Advisory, VDB Entry
    Changed Reference Type https://github.com/torvalds/linux/commit/ab79efab0a0ba01a74df782eb7fa44b044dae8b5 No Types Assigned https://github.com/torvalds/linux/commit/ab79efab0a0ba01a74df782eb7fa44b044dae8b5 Patch
    Changed Reference Type http://www.openwall.com/lists/oss-security/2016/08/23/9 No Types Assigned http://www.openwall.com/lists/oss-security/2016/08/23/9 Exploit, Third Party Advisory
    Changed Reference Type http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.6 No Types Assigned http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.6 Release Notes, Vendor Advisory
    Added CWE CWE-399
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 5.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 4.9
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.07 }} -0.08%

score

0.18719

percentile