The dm_get_from_kobject function in drivers/md/dm.c in the Linux kernel before 4.14.3…
Priority LOW 22CWE-362Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 20 fixed, 1 without a fix
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat.
Summary
The dm_get_from_kobject function in drivers/md/dm.c in the Linux kernel before 4.14.3 allow local users to cause a denial of service (BUG) by leveraging a race condition with __dm_destroy during creation and removal of DM devices.
Why it matters now
EPSS 0.00322 25th percentileScored 2026-11-07
Fix Partial Red Hat: 4 advisoriesRed Hat: 20 fixed, 1 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 4 advisories
- RHSA-2019:4154 Released 2019-12-10 · Red Hat rating Importantkernel-alt security, bug fix, and enhancement update
- Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) kernel-4.14.0-115.16.1.el7a, kernel-abi-whitelists-4.14.0-115.16.1.el7a, kernel-alt-4.14.0-115.16.1.el7a +9
- Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) kernel-debug-devel-4.14.0-115.16.1.el7a, kernel-tools-libs-devel-4.14.0-115.16.1.el7a
- RHSA-2018:1854 Released 2018-06-19 · Red Hat rating Importantkernel security and bug fix update
- Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-754.el6, kernel-abi-whitelists-2.6.32-754.el6, kernel-debug-2.6.32-754.el6 +6
- Red Hat Enterprise Linux Desktop Optional (v. 6) python-perf-2.6.32-754.el6
- Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-754.el6, kernel-abi-whitelists-2.6.32-754.el6, kernel-debug-2.6.32-754.el6 +6
- Red Hat Enterprise Linux HPC Node Optional (v. 6) python-perf-2.6.32-754.el6
- Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-754.el6, kernel-abi-whitelists-2.6.32-754.el6, kernel-bootwrapper-2.6.32-754.el6 +9
- Red Hat Enterprise Linux Server Optional (v. 6) python-perf-2.6.32-754.el6
- Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-754.el6, kernel-abi-whitelists-2.6.32-754.el6, kernel-debug-2.6.32-754.el6 +6
- Red Hat Enterprise Linux Workstation Optional (v. 6) python-perf-2.6.32-754.el6
- RHSA-2018:1062 Released 2018-04-10 · Red Hat rating Importantkernel security, bug fix, and enhancement update
- Red Hat Enterprise Linux Client (v. 7) kernel-3.10.0-862.el7, kernel-abi-whitelists-3.10.0-862.el7, kernel-debug-3.10.0-862.el7 +8
- Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-862.el7
- Red Hat Enterprise Linux ComputeNode (v. 7) kernel-3.10.0-862.el7, kernel-abi-whitelists-3.10.0-862.el7, kernel-debug-3.10.0-862.el7 +8
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-862.el7
- Red Hat Enterprise Linux Server (v. 7) kernel-3.10.0-862.el7, kernel-abi-whitelists-3.10.0-862.el7, kernel-bootwrapper-3.10.0-862.el7 +11
- Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-862.el7, kernel-tools-libs-devel-3.10.0-862.el7
- Red Hat Enterprise Linux Workstation (v. 7) kernel-3.10.0-862.el7, kernel-abi-whitelists-3.10.0-862.el7, kernel-debug-3.10.0-862.el7 +8
- Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-862.el7
Show 1 more Red Hat advisories
- RHSA-2018:0676 Released 2018-04-10 · Red Hat rating Importantkernel-rt security, bug fix, and enhancement update
- Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt-3.10.0-862.rt56.804.el7, kernel-rt-debug-3.10.0-862.rt56.804.el7, kernel-rt-debug-devel-3.10.0-862.rt56.804.el7 +4
- Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt-3.10.0-862.rt56.804.el7, kernel-rt-debug-3.10.0-862.rt56.804.el7, kernel-rt-debug-devel-3.10.0-862.rt56.804.el7 +7
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise MRG 2 | Affected | No fix yet |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2018:1062 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2018:1062 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2018:1062 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2018:1062 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2018:1854 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2018:1854 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2018:1854 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2018:1854 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2018:1854 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2018:1062 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2018:1854 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2018:1062 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2018:1854 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2018:1062 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2018:1854 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2018:1062 |
| Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) | Fixed | RHSA-2019:4154 |
| Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) | Fixed | RHSA-2019:4154 |
| Red Hat Enterprise Linux for Real Time (v. 7) | Fixed | RHSA-2018:0676 |
| Red Hat Enterprise Linux for Real Time for NFV (v. 7) | Fixed | RHSA-2018:0676 |
Not affected: 2 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2017-18203
- 2026-10-03 Alias added: GHSA-x4ch-6pwr-pmgj
References
Patch 2
Advisory 13
More Linux Kernel vulnerabilities
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- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2017-18203 · CVE Program
- CVE-2017-18203 · NVD
- FIRST EPSS
- GHSA-x4ch-6pwr-pmgj · GitHub Advisory Database · CC BY 4.0
- CVE-2017-18203 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences