{"id":"CVE-2020-15953","details":"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 reads additional data (e.g., from a meddler-in-the-middle attacker) and evaluates it in a TLS context, aka \"response injection.\"","modified":"2026-07-08T05:56:05.773549740Z","published":"2020-07-27T07:15:10.910Z","related":["openSUSE-SU-2020:1454-1","openSUSE-SU-2020:1505-1","openSUSE-SU-2024:10938-1"],"database_specific":{"unresolved_ranges":[{"cpes":["cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"9.0"},{"last_affected":"9.0"}],"source":"CPE_STRING","vendor_product":"debian:debian_linux"},{"vendor_product":"fedoraproject:fedora","cpes":["cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*","cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"31"},{"last_affected":"31"},{"introduced":"32"},{"last_affected":"32"}],"source":"CPE_STRING"}]},"references":[{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00060.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00075.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M65FVH5XPS23NLHFN3ABEGBSCHZAISXN/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QFBWNA5REI5ZGW2DAOEAVHM23MOU6O5J/"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2020/08/msg00026.html"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202007-55"},{"type":"FIX","url":"https://github.com/dinhvh/libetpan/issues/386"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/dinhvh/libetpan","events":[{"introduced":"0"},{"last_affected":"a6e6fb1b9d298c690db2eafb48a853e5b26c68d5"}],"database_specific":{"cpe":"cpe:2.3:a:libetpan_project:libetpan:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"last_affected":"1.9.4"}],"source":"CPE_RANGE"}}],"versions":["1.9.4","1.9.3","1.9.2","1.9.1","1.9","1.8","1.7.2","1.7","1.6","1.5","1.4.1","1.4","1.3.pre2","1.3.pre1","1.2.pre1","1.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-15953.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/mailcore/mailcore2","events":[{"introduced":"0"},{"last_affected":"908b76857254dddfb07a74dd0e407e10d0900dd5"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"0.6.3"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:libmailcore:mailcore2:*:*:*:*:*:*:*:*"}}],"versions":["0.6.3","0.6.2","0.6.1","0.6","0.5.1","0.5","0.3.pre1","0.2","0.2.pre1","0.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-15953.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"}]}