{"action":"Upgrade libetpan to 1.9.4-3 or later.","affected":[{"fixed":"1.9.4-3","introduced":"0"}],"component":"libetpan","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["1.9.4-3"],"id":"tcs_01M5NENWDMF3ZSJJVS5PRW8H26","modified_at":"2026-10-26T12:02:27.375919012Z","published_at":"2020-07-27T07:15:10.910Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2020-15953","https://security-tracker.debian.org/tracker/CVE-2020-15953"],"severity":{"label":"high","score":7.4},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2020-15953","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2020-15953"}],"summary":"LibEtPan through 1.9.4, as used in MailCore 2 through 0.6.3 and other products, has a STARTTLS buffering issue that affects IMAP, SMTP, and POP3. When a server sends a \"begin TLS\" response, the client"}