{"id":"DEBIAN-CVE-2021-38084","details":"An issue was discovered in the POP3 component of Courier Mail Server before 1.1.5. Meddler-in-the-middle attackers can pipeline commands after the POP3 STLS command, injecting plaintext commands into an encrypted user session.","modified":"2026-09-01T20:04:31.782825947Z","published":"2021-08-03T22:15:09.310Z","upstream":["CVE-2021-38084"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2021-38084"}],"affected":[{"package":{"name":"courier","ecosystem":"Debian:12","purl":"pkg:deb/debian/courier?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.16-3","1.0.16-3.1","1.0.16-3.2","1.3.13-1","1.3.13-10","1.3.13-11","1.3.13-2","1.3.13-3","1.3.13-4","1.3.13-5","1.3.13-6","1.3.13-7","1.3.13-8","1.3.13-9","1.4.1-1","1.4.1-10","1.4.1-2","1.4.1-3","1.4.1-4","1.4.1-5","1.4.1-6","1.4.1-7","1.4.1-8","1.4.1-9","1.5.1-1","1.5.1-2","1.5.1-3","1.5.1-4","2.0.2-1","2.0.2-2","2.0.2-3","2.0.2-4","2.0.3-1","2.0.3-2","2.0.6-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-38084.json"}},{"package":{"name":"courier","ecosystem":"Debian:13","purl":"pkg:deb/debian/courier?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.13-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-38084.json"}},{"package":{"name":"courier","ecosystem":"Debian:14","purl":"pkg:deb/debian/courier?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.13-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-38084.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}