{"action":"Upgrade ldns to 1.8.1-1 or later.","affected":[{"fixed":"1.8.1-1","introduced":"0"}],"component":"ldns","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["1.8.1-1"],"id":"tcs_01M5NERVBPTZ1KH4ZT49J0CEAW","modified_at":"2026-09-11T11:02:01.316016695Z","published_at":"2022-01-21T15:15:07.607Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2020-19861","https://security-tracker.debian.org/tracker/CVE-2020-19861"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2020-19861","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2020-19861"}],"summary":"When a zone file in ldns 1.7.1 is parsed, the function ldns_nsec3_salt_data is too trusted for the length value obtained from the zone file. When the memcpy is copied, the 0xfe - ldns_rdf_size(salt_rd"}