CVE-2017-18216

Description

In fs/ocfs2/cluster/nodemanager.c in the Linux kernel before 4.15, local users can cause a denial of service (NULL pointer dereference and BUG) because a required mutex is not used.

Category

5.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.05%
Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=853bc26a7ea39e354b9f8889ae7ad1492ffa28d2 patch vendor advisory
https://usn.ubuntu.com/3776-1/ vendor advisory
https://www.debian.org/security/2018/dsa-4187 vendor advisory
https://usn.ubuntu.com/3776-2/ vendor advisory
http://www.securityfocus.com/bid/103278 third party advisory vdb entry
https://github.com/torvalds/linux/commit/853bc26a7ea39e354b9f8889ae7ad1492ffa28d2 third party advisory patch
https://www.debian.org/security/2018/dsa-4188 vendor advisory
https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html mailing list
https://usn.ubuntu.com/3798-1/ vendor advisory
https://usn.ubuntu.com/3798-2/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-18216?
CVE-2017-18216 has been scored as a medium severity vulnerability.
How to fix CVE-2017-18216?
To fix CVE-2017-18216, 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-2017-18216 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-18216 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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