{"action":"Upgrade systemd to 255.4-1 or later.","affected":[{"fixed":"255.4-1","introduced":"0"}],"component":"systemd","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["255.4-1"],"id":"tcs_01M5NJE9B796B5DVM8RTZ8MBAF","modified_at":"2026-10-23T18:05:26.061720682Z","published_at":"2024-02-14T16:15:45.377Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2023-50868","https://security-tracker.debian.org/tracker/CVE-2023-50868"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2023-50868#Debian:14/systemd","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2023-50868"}],"summary":"The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped) allows remote attackers to cause a denial of service (CPU consumption for SHA-1 computations) via"}