{"action":"Upgrade systemd to 244-1 or later.","affected":[{"fixed":"244-1","introduced":"0"}],"component":"systemd","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["244-1"],"id":"tcs_01M5NDBRTVS4SSMMHDXG12E2K0","modified_at":"2026-10-23T18:03:05.680561411Z","published_at":"2019-10-30T22:15:10.667Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2018-21029","https://security-tracker.debian.org/tracker/CVE-2018-21029"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2018-21029#Debian:14/systemd","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2018-21029"}],"summary":"systemd 239 through 245 accepts any certificate signed by a trusted certificate authority for DNS Over TLS. Server Name Indication (SNI) is not sent, and there is no hostname validation with the GnuTL"}