{"id":"CVE-2020-15917","details":"common/session.c in Claws Mail before 3.17.6 has a protocol violation because suffix data after STARTTLS is mishandled.","modified":"2026-03-13T00:31:55.134160Z","published":"2020-07-23T19:15:10.137Z","related":["MGASA-2020-0321","openSUSE-SU-2020:1116-1","openSUSE-SU-2020:1139-1","openSUSE-SU-2020:1192-1","openSUSE-SU-2020:1269-1","openSUSE-SU-2020:1822-1","openSUSE-SU-2021:1045-1","openSUSE-SU-2024:10686-1"],"references":[{"type":"WEB","url":"https://git.claws-mail.org/?p=claws.git%3Ba=commit%3Bh=fcc25329049b6f9bd8d890f1197ed61eb12e14d5"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6YVQB7NRBHO67Q74RS7RZCMW4ENRVBB4/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G7UX65342HRVDQML4G4GEVEUB764EUM5/"},{"type":"WEB","url":"https://git.claws-mail.org/?p=claws.git%3Ba=blob%3Bf=RELEASE_NOTES"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00002.html"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00051.html"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00090.html"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00060.html"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00013.html"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202007-56"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-15917.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"3.17.6"}]},{"events":[{"introduced":"0"},{"last_affected":"31"}]},{"events":[{"introduced":"0"},{"last_affected":"32"}]},{"events":[{"introduced":"0"},{"last_affected":"15.0-sp1"}]},{"events":[{"introduced":"0"},{"last_affected":"15.0-sp2"}]},{"events":[{"introduced":"0"},{"last_affected":"15.1"}]},{"events":[{"introduced":"0"},{"last_affected":"15.2"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}