{"id":"CVE-2015-3420","aliases":["DEBIAN-CVE-2015-3420","EUVD-2015-3464","GHSA-2h34-774g-95vx"],"status":"published","title":"The ssl-proxy-openssl.c function in Dovecot before 2.2.17, when SSLv3 is disabled, allow remote...","description":"The ssl-proxy-openssl.c function in Dovecot before 2.2.17, when SSLv3 is disabled, allow remote attackers to cause a denial of service (login process crash) via vectors related to handshake failures.","severity":{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.02842,"percentile":0.86759,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-295"],"published":"2017-09-19T15:00:00Z","modified":"2026-09-09T07:00:52Z","fixes":[{"ecosystem":"Debian:12","package":"dovecot","fixed_in":["1:2.2.13-12"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"dovecot","fixed_in":["1:2.2.13-12"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"dovecot","fixed_in":["1:2.2.13-12"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"dovecot","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.2.13-12"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"dovecot","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.2.13-12"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"dovecot","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.2.13-12"}]}]}],"products":[{"vendor":"dovecot","product":"dovecot"},{"vendor":"fedoraproject","product":"fedora"}],"references":[{"url":"http://www.openwall.com/lists/oss-security/2015/04/28/4","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory","article"]},{"url":"https://dovecot.org/pipermail/dovecot/2015-April/100618.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","Vendor Advisory","advisory"]},{"url":"https://dovecot.org/pipermail/dovecot-news/2015-May/000292.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","Vendor Advisory","advisory"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158261.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","Third Party Advisory","advisory"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2015-May/157030.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","Third Party Advisory","advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1216057","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","Third Party Advisory","advisory","report"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2015-May/158236.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","Third Party Advisory","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2015/04/27/1","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory","article"]},{"url":"http://www.securityfocus.com/bid/74335","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-3420"},{"url":"https://github.com/advisories/GHSA-2h34-774g-95vx"},{"url":"https://security-tracker.debian.org/tracker/CVE-2015-3420","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2015-3420","description":"The ssl-proxy-openssl.c function in Dovecot before 2.2.17, when SSLv3 is disabled, allow remote attackers to cause a denial of service (login process crash) via vectors related to handshake failures.","status":"published","published":"2017-09-19T15:00:00Z","modified":"2024-08-06T05:47:57.729Z","updated_at":"2026-11-02T14:35:41.976732Z"}],"euvd":[{"id":"EUVD-2015-3464","description":"The ssl-proxy-openssl.c function in Dovecot before 2.2.17, when SSLv3 is disabled, allow remote attackers to cause a denial of service (login process crash) via vectors related to handshake failures.","status":"published","published":"2017-09-19T15:00:00Z","modified":"2024-08-06T05:47:57Z","updated_at":"2026-11-03T02:22:08.106657Z"}],"ghsa":[{"id":"GHSA-2h34-774g-95vx","title":"The ssl-proxy-openssl.c function in Dovecot before 2.2.17, when SSLv3 is disabled, allow remote...","description":"The ssl-proxy-openssl.c function in Dovecot before 2.2.17, when SSLv3 is disabled, allow remote attackers to cause a denial of service (login process crash) via vectors related to handshake failures.","status":"published","published":"2022-05-17T00:35:10Z","modified":"2023-02-03T05:02:01Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:53:05.394826Z"}],"nvd":[{"id":"CVE-2015-3420","description":"The ssl-proxy-openssl.c function in Dovecot before 2.2.17, when SSLv3 is disabled, allow remote attackers to cause a denial of service (login process crash) via vectors related to handshake failures.","status":"published","published":"2017-09-19T15:29:00.74Z","modified":"2026-06-17T00:25:54.36Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-295"],"updated_at":"2026-11-02T14:03:19.244941Z"}],"osv":[{"id":"CVE-2015-3420","description":"The ssl-proxy-openssl.c function in Dovecot before 2.2.17, when SSLv3 is disabled, allow remote attackers to cause a denial of service (login process crash) via vectors related to handshake failures.","status":"published","published":"2017-09-19T15:29:00Z","modified":"2026-04-10T03:45:17.357595Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:00.594921Z"},{"id":"DEBIAN-CVE-2015-3420","description":"The ssl-proxy-openssl.c function in Dovecot before 2.2.17, when SSLv3 is disabled, allow remote attackers to cause a denial of service (login process crash) via vectors related to handshake failures.","status":"published","published":"2017-09-19T15:29:00.74Z","modified":"2026-09-09T07:00:52.875605363Z","cvss":[{"version":"3.0","score":5.9,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:26.752992Z"}]}}