{"action":"Upgrade linux to 4.15.4-1 or later.","affected":[{"fixed":"4.15.4-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["4.15.4-1"],"id":"tcs_01M5NCB35JM45HC1CDS7ATEXJY","modified_at":"2026-09-01T20:03:46.941315779Z","published_at":"2018-03-05T18:29:00.360Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2017-18216","https://security-tracker.debian.org/tracker/CVE-2017-18216"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2017-18216#Debian:13/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2017-18216"}],"summary":"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."}