{"action":"Upgrade linux to 4.18.20-1 or later.","affected":[{"fixed":"4.18.20-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["4.18.20-1"],"id":"tcs_01M5ND6S1RTQY46WMTCRXS1XJF","modified_at":"2026-10-23T18:03:02.204670878Z","published_at":"2018-10-30T18:29:00.737Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2018-18281","https://security-tracker.debian.org/tracker/CVE-2018-18281"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2018-18281#Debian:13/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2018-18281"}],"summary":"Since Linux kernel version 3.2, the mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the"}