{"action":"Upgrade openssl to 1.1.1k-1 or later.","affected":[{"fixed":"1.1.1k-1","introduced":"0"}],"component":"openssl","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["1.1.1k-1"],"id":"tcs_01M5NFRH6NTYRFDDWJ9BKF854B","modified_at":"2026-10-09T09:47:27.162325924Z","published_at":"2021-03-25T15:15:13.450Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-3449","https://security-tracker.debian.org/tracker/CVE-2021-3449"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-3449","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-3449"}],"summary":"An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2 renegotiation ClientHello omits the signature_algorithms extension (where it"}