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CVE-2017-14340

20
FAUCET Score

CVE-2017-14340 is a denial-of-service vulnerability affecting the Linux kernel, specifically versions prior to 4.13.2. It stems from an unchecked XFS_IS_REALTIME_INODE macro, allowing local users to trigger a NULL pointer dereference and system crash (OOPS) by manipulating the RHINHERIT flag on a directory without a realtime device. Rated Medium (CVSS 5.5), this vulnerability requires local access and has a high impact on availability. There is no known active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.13.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.42%
Probability of exploitation in next 30 days
EPSS Percentile
34.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0042 is in the 89th percentile among its peer group of 15,940 CVEs.

Social Chatter

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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-1:3.10.0-693.5.2.rt56.592.el6rt
View patch

Vendor Advisories (1)

redhatCVE-2017-14340Moderate

kernel: xfs: unprivileged user kernel oops

Sep 13, 2017

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
Issue TrackingPatchThird Party Advisory
access.redhat.com / errata/RHSA-2017:2918
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
seclists.org / oss-sec/2017/q3/436
Mailing ListMitigationPatchThird Party Advisory
github.com / torvalds/linux/commit/b31ff3cdf540110da4572e3e29bd172087af65cc
Issue TrackingPatchThird Party Advisory
debian.org / security/2017/dsa-3981
kernel.org / pub/linux/kernel/v4.x/ChangeLog-4.13.2
Release NotesVendor Advisory
securityfocus.com / bid/100851
Third Party AdvisoryVDB Entry