{"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:12","exploited":false,"fixed_versions":["4.15.4-1"],"id":"tcs_01M5NDXSC20M75F741QKATYDM5","modified_at":"2026-09-21T07:02:11.728679064Z","published_at":"2019-08-20T08:15:11.717Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2019-15239","https://security-tracker.debian.org/tracker/CVE-2019-15239"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2019-15239","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2019-15239"}],"summary":"In the Linux kernel, a certain net/ipv4/tcp_output.c change, which was properly incorporated into 4.16.12, was incorrectly backported to the earlier longterm kernels, introducing a new vulnerability t"}