UBUNTU-CVE-2017-18216
Advisory lineage Upstream: 1 Downstream: 3
Upstream
Downstream
Published: 05 Mar 2018, 00:00
Last modified:12 May 2026, 13:44
Vulnerability Summary
Overall Risk (default)
low
22/100 CVSS Score
5.5 MEDIUM
3.0 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
05 Mar 2018, 00:00
Published
Vulnerability first disclosed
12 May 2026, 13:44
Last Modified
Vulnerability information updated
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.
CVSS Metrics
- v3.0•MEDIUM•Score: 5.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Systems
- ubuntu•linux
< 3.13.0-161.211 | < 4.4.0-137.163
- ubuntu•linux-aws
< 4.4.0-1031.34 | < 4.4.0-1069.79
- ubuntu•linux-azure
< 4.15.0-1013.13~16.04.2
- ubuntu•linux-azure-6.11
all
- ubuntu•linux-azure-fde
all
- ubuntu•linux-azure-fde-5.15
all
- ubuntu•linux-fips
< 4.4.0-1008.10
- ubuntu•linux-gcp
< 4.15.0-1014.14~16.04.1
- ubuntu•linux-gcp-6.11
all
- ubuntu•linux-gke
all
- ubuntu•linux-hwe
< 4.15.0-24.26~16.04.1
- ubuntu•linux-hwe-6.11
all
- ubuntu•linux-intel-iot-realtime
all
- ubuntu•linux-kvm
< 4.4.0-1035.41
- ubuntu•linux-lowlatency-hwe-6.11
all
- ubuntu•linux-lts-xenial
< 4.4.0-137.163~14.04.1
- ubuntu•linux-raspi-realtime
all
- ubuntu•linux-raspi2
< 4.4.0-1098.106 | all
- ubuntu•linux-realtime
all
- ubuntu•linux-riscv
all | all
- ubuntu•linux-snapdragon
< 4.4.0-1102.107
References (8)
- https://ubuntu.com/security/CVE-2017-18216
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=853bc26a7ea39e354b9f8889ae7ad1492ffa28d2
- https://github.com/torvalds/linux/commit/853bc26a7ea39e354b9f8889ae7ad1492ffa28d2
- https://ubuntu.com/security/notices/USN-3776-1
- https://ubuntu.com/security/notices/USN-3776-2
- https://ubuntu.com/security/notices/USN-3798-1
- https://ubuntu.com/security/notices/USN-3798-2
- https://www.cve.org/CVERecord?id=CVE-2017-18216