NULL pointer dereference in Linux Kernel
CVE-2017-18216
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (38.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
Weakness classification (CWE)
References
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Vendor Advisory)
- usn.ubuntu.com/3776-1/ (vendor-advisory)
- www.debian.org/security/2018/dsa-4187 (vendor-advisory)
- usn.ubuntu.com/3776-2/ (vendor-advisory)
- www.securityfocus.com/bid/103278 (VDB Entry, Third Party Advisory, vdb-entry)
- github.com/torvalds/linux/commit/853bc26a7ea39e354b9f8889ae7ad1492ffa28d2 (Patch, Third Party Advisory)
- www.debian.org/security/2018/dsa-4188 (vendor-advisory)
- lists.debian.org/debian-lts-announce/2018/05/msg00000.html (mailing-list)
- usn.ubuntu.com/3798-1/ (vendor-advisory)
- usn.ubuntu.com/3798-2/ (vendor-advisory)
Frequently asked questions
- What is CVE-2017-18216?
- CVE-2017-18216 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2018-03-05.
- How severe is CVE-2017-18216?
- Medium severity. CVSS v3 base score is 5.5 out of 10.