CVE-2017-18203

Description

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.

Category

4.7
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.03%
Vendor Advisory debian.org Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory kernel.org Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.debian.org/security/2018/dsa-4187 vendor advisory
https://usn.ubuntu.com/3619-2/ vendor advisory
http://www.securityfocus.com/bid/103184 vdb entry third party advisory
https://github.com/torvalds/linux/commit/b9a41d21dceadf8104812626ef85dc56ee8a60ed third party advisory patch
https://access.redhat.com/errata/RHSA-2018:1854 vendor advisory
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.3 release notes vendor advisory
https://access.redhat.com/errata/RHSA-2018:1062 vendor advisory
https://access.redhat.com/errata/RHSA-2018:0676 vendor advisory
https://usn.ubuntu.com/3653-2/ vendor advisory
https://usn.ubuntu.com/3655-1/ vendor advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b9a41d21dceadf8104812626ef85dc56ee8a60ed patch vendor advisory
https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html mailing list
https://usn.ubuntu.com/3655-2/ vendor advisory
https://usn.ubuntu.com/3653-1/ vendor advisory
https://usn.ubuntu.com/3657-1/ vendor advisory
https://usn.ubuntu.com/3619-1/ vendor advisory
https://access.redhat.com/errata/RHSA-2019:4154 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-18203?
CVE-2017-18203 has been scored as a medium severity vulnerability.
How to fix CVE-2017-18203?
To fix CVE-2017-18203, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-18203 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-18203 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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