{"action":"Upgrade libebml to 1.4.2-1 or later.","affected":[{"fixed":"1.4.2-1","introduced":"0"}],"component":"libebml","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["1.4.2-1"],"id":"tcs_01M5NFR5JWQADA7F5GHS1WS6VS","modified_at":"2026-10-23T18:02:30.145964244Z","published_at":"2021-02-23T20:15:12.087Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-3405","https://security-tracker.debian.org/tracker/CVE-2021-3405"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-3405#Debian:13/libebml","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-3405"}],"summary":"A flaw was found in libebml before 1.4.2. A heap overflow bug exists in the implementation of EbmlString::ReadData and EbmlUnicodeString::ReadData in libebml."}