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CVE-2017-18203

18
FAUCET Score

CVE-2017-18203 is a race condition vulnerability in the Linux kernel, specifically within the dm_get_from_kobject function in drivers/md/dm.c, affecting versions prior to 4.14.3. This flaw allows a local attacker to trigger a denial of service (BUG) by exploiting a race condition during the creation and removal of DM devices. Rated as Medium severity (CVSS 4.7), it requires local access and high attack complexity, leading to high availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.14.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.7MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.0
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.33%
Probability of exploitation in next 30 days
EPSS Percentile
25.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0033 is in the 73rd percentile among its peer group of 1,297 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 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 0.4 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-754.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt-0:3.10.0-862.rt56.804.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-862.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-alt-0:4.14.0-115.16.1.el7a
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: realtime-kernel

Vendor Advisories (1)

redhatCVE-2017-18203Moderate

kernel: Race condition in drivers/md/dm.c:dm_get_from_kobject() allows local users to cause a denial of service

Nov 1, 2017

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
PatchVendor Advisory
access.redhat.com / errata/RHSA-2018:0676
access.redhat.com / errata/RHSA-2018:1062
access.redhat.com / errata/RHSA-2018:1854
access.redhat.com / errata/RHSA-2019:4154
github.com / torvalds/linux/commit/b9a41d21dceadf8104812626ef85dc56ee8a60ed
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2018/05/msg00000.html
usn.ubuntu.com / 3619-1
usn.ubuntu.com / 3619-2
usn.ubuntu.com / 3653-1
usn.ubuntu.com / 3653-2
usn.ubuntu.com / 3655-1
usn.ubuntu.com / 3655-2
usn.ubuntu.com / 3657-1
debian.org / security/2018/dsa-4187
kernel.org / pub/linux/kernel/v4.x/ChangeLog-4.14.3
Release NotesVendor Advisory
securityfocus.com / bid/103184
Third Party AdvisoryVDB Entry