Security readout for executives and security teams
CVE-2017-18203 is a Linux kernel flaw that can let a local user crash the system. It affects device-mapper handling during creation and removal of DM devices. The business risk is service disruption on vulnerable Linux hosts, not confirmed data theft or remote compromise. Exposure is likely on Linux systems running kernels before 4.14.3 or distribution kernels lacking the vendor backport. Risk is higher where local users or workloads can reach device-mapper create/remove behavior. The bundle does not define exact privilege requirements. Treat as a patching priority for exposed or shared Linux systems. It is not supported as remotely exploitable, but a local denial-of-service flaw can still interrupt production workloads and availability commitments. Mitigation focus: Update to a kernel containing the upstream fix or vendor backport.; Apply relevant Debian, Ubuntu, or Red Hat kernel security updates.; Reboot systems after updating so the fixed kernel is running..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2017-18203 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- DSA-4187CVE reference · vendor-advisory, x_refsource_DEBIAN
- USN-3619-2CVE reference · vendor-advisory, x_refsource_UBUNTU
- https://github.com/torvalds/linux/commit/b9a41d21dceadf8104812626ef85dc56ee8a60edCVE reference · x_refsource_MISC
- RHSA-2018:1854CVE reference · vendor-advisory, x_refsource_REDHAT
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.3CVE reference · x_refsource_MISC
- RHSA-2018:1062CVE reference · vendor-advisory, x_refsource_REDHAT
- RHSA-2018:0676CVE reference · vendor-advisory, x_refsource_REDHAT
- USN-3653-2CVE reference · vendor-advisory, x_refsource_UBUNTU
- USN-3655-1CVE reference · vendor-advisory, x_refsource_UBUNTU
- [debian-lts-announce] 20180502 [SECURITY] [DLA 1369-1] linux security updateCVE reference · mailing-list, x_refsource_MLIST
- USN-3655-2CVE reference · vendor-advisory, x_refsource_UBUNTU
- USN-3653-1CVE reference · vendor-advisory, x_refsource_UBUNTU
- USN-3657-1CVE reference · vendor-advisory, x_refsource_UBUNTU
- USN-3619-1CVE reference · vendor-advisory, x_refsource_UBUNTU
- RHSA-2019:4154CVE reference · vendor-advisory, x_refsource_REDHAT
Products and packages named in the record
CWE details
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