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CVE-2014-4171

14
FAUCET Score

CVE-2014-4171 is a denial-of-service vulnerability in the Linux kernel (through version 3.15.1), specifically affecting the mm/shmem.c component, including Canonical Ubuntu Linux. It allows local users to cause a denial of service by holding the i_mutex, interfering with shmem operations. The vulnerability has a CVSS score of 4.7, indicating a low attack complexity and requiring local access, with the primary impact being a complete loss of availability. There is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.15.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.7MEDIUM

AV:L/AC:M/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.44%
Probability of exploitation in next 30 days
EPSS Percentile
36.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0044 is in the 70th percentile among its peer group of 1,595 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-123.20.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-0:3.10.33-rt32.51.el6rt
View patch

Vendor Advisories (1)

redhatCVE-2014-4171Moderate

Kernel: mm/shmem: denial of service

Jun 17, 2014

References

lists.opensuse.org / opensuse-security-announce/2014-10/msg00006.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2014-10/msg00007.html
Mailing ListThird Party Advisory
marc.info
Mailing ListThird Party Advisory
ozlabs.org / ~akpm/mmots/broken-out/shmem-fix-faulting-into-a-hole-while-its-punched.patch
Third Party Advisory
rhn.redhat.com / errata/RHSA-2014-1318.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2015-0102.html
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
secunia.com / advisories/59777
Third Party Advisory
secunia.com / advisories/60564
Third Party Advisory
openwall.com / lists/oss-security/2014/06/18/11
Mailing ListThird Party Advisory
securityfocus.com / bid/68157
Third Party AdvisoryVDB Entry
securitytracker.com / id/1030450
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-2334-1
Third Party Advisory
ubuntu.com / usn/USN-2335-1
Third Party Advisory