{"id":"UBUNTU-CVE-2020-29547","details":"An issue was discovered in Citadel through webcit-926. Meddler-in-the-middle attackers can pipeline commands after POP3 STLS, IMAP STARTTLS, or SMTP STARTTLS commands, injecting cleartext commands into an encrypted user session. This can lead to credential disclosure.","modified":"2025-10-24T04:48:56Z","published":"2023-05-29T19:15:00Z","upstream":["CVE-2020-29547"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-29547"},{"type":"REPORT","url":"https://uncensored.citadel.org/readfwd?go=Citadel"},{"type":"REPORT","url":"https://nostarttls.secvuln.info/"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-29547"}],"affected":[{"package":{"name":"citadel","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/citadel@9.01-1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["9.01-1"],"ecosystem_specific":{"binaries":[{"binary_name":"citadel-mta","binary_version":"9.01-1"},{"binary_name":"citadel-server","binary_version":"9.01-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-29547.json"}},{"package":{"name":"citadel","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/citadel@917-2?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["911-1","917-2"],"ecosystem_specific":{"binaries":[{"binary_name":"citadel-server","binary_version":"917-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-29547.json"}},{"package":{"name":"citadel","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/citadel@917-4?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["917-3","917-4"],"ecosystem_specific":{"binaries":[{"binary_name":"citadel-server","binary_version":"917-4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-29547.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}