{"action":"Upgrade kf5-messagelib to 4:18.08.1-1 or later.","affected":[{"fixed":"4:18.08.1-1","introduced":"0"}],"component":"kf5-messagelib","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["4:18.08.1-1"],"id":"tcs_01M5NC9V1JB0MRF8HJMVS9YCG4","modified_at":"2026-09-01T20:03:46.244626655Z","published_at":"2018-05-16T19:29:00.303Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2017-17689","https://security-tracker.debian.org/tracker/CVE-2017-17689"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2017-17689#Debian:12/kf5-messagelib","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2017-17689"}],"summary":"The S/MIME specification allows a Cipher Block Chaining (CBC) malleability-gadget attack that can indirectly lead to plaintext exfiltration, aka EFAIL."}