{"id":"CVE-2020-10967","aliases":["ALPINE-CVE-2020-10967","ALSA-2020:4763","DEBIAN-CVE-2020-10967","DSA-4690-1","EUVD-2020-3368","GHSA-qm25-rqq9-7jcr","MGASA-2020-0222","RHSA-2020:4763","SUSE-SU-2020:1379-1","SUSE-SU-2020:1380-1","UBUNTU-CVE-2020-10967","USN-4361-1","openSUSE-SU-2020:0720-1","openSUSE-SU-2024:10726-1","openSUSE-SU-2025:14715-1"],"status":"published","title":"In Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp or submission...","description":"In Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp or submission process by sending mail with an empty 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rl":"https://www.suse.com/security/cve/CVE-2017-14461","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-15130","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-15132","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-10691","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-11494","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-11499","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-11500","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-19722","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-3814","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-7524","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-12100","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-12673","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-12674","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-24386","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-28200","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-7046","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-7957","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-29157","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-33515","tags":["web"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/KZSDCZ5LA6IHY7KXVSL6ULAJVP6OFT2M/","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2024-23184","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-23185","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2020-10967","description":"In Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp or submission process by sending mail with an empty localpart.","status":"published","published":"2020-05-18T14:02:55Z","modified":"2024-08-04T11:21:14.414Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AC:L/AV:N/A:L/C:N/I:N/PR:N/S:U/UI:N","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:35:48.213211Z"}],"euvd":[{"id":"EUVD-2020-3368","description":"In Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp or submission process by sending mail with an empty localpart.","status":"published","published":"2020-05-18T14:02:55Z","modified":"2024-08-04T11:21:14Z","cvss":[{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AC:L/AV:N/A:L/C:N/I:N/PR:N/S:U/UI:N","level":"medium"}],"updated_at":"2026-11-03T03:07:48.03567Z"}],"ghsa":[{"id":"GHSA-qm25-rqq9-7jcr","title":"In Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp or submission...","description":"In Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp or submission process by sending mail with an empty localpart.","status":"published","published":"2022-05-24T17:18:02Z","modified":"2023-01-29T05:02:41Z","updated_at":"2026-11-02T14:45:09.006349Z"}],"nvd":[{"id":"CVE-2020-10967","description":"In Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp or submission process by sending mail with an empty localpart.","status":"published","published":"2020-05-18T15:15:10.817Z","modified":"2026-06-17T02:48:46.07Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"primary"},{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"secondary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:06:00.784809Z"}],"osv":[{"id":"ALPINE-CVE-2020-10967","description":"In Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp or submission process by sending mail with an empty localpart.","status":"published","published":"2020-05-18T15:15:10.817Z","modified":"2026-10-26T11:17:55.098646131Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:27:48.11886Z"},{"id":"CVE-2020-10967","description":"In Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp or submission process by sending mail with an empty localpart.","status":"published","published":"2020-05-18T15:15:10.817Z","modified":"2026-10-24T10:30:47.182150226Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:44:13.492058Z"},{"id":"DEBIAN-CVE-2020-10967","description":"In Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp or submission process by sending mail with an empty localpart.","status":"published","published":"2020-05-18T15:15:10.817Z","modified":"2026-10-26T12:00:18.436785152Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:45:32.862554Z"},{"id":"RHSA-2020:4763","title":"Red Hat Security Advisory: dovecot security update","status":"published","published":"2024-09-16T04:24:32Z","modified":"2026-06-26T12:22:16.5130249Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:53:07.57369Z"},{"id":"UBUNTU-CVE-2020-10967","description":"In Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp or submission process by sending mail with an empty localpart.","status":"published","published":"2020-05-18T12:00:00Z","modified":"2026-04-22T12:26:37.812951Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"},{"version":"3.0","score":5.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:54:22.212782Z"},{"id":"ALSA-2020:4763","title":"Moderate: dovecot security update","description":"Dovecot is an IMAP server for Linux and other UNIX-like systems, written primarily with security in mind. It also contains a small POP3 server, and supports e-mail in either the maildir or mbox format. The SQL drivers and authentication plug-ins are provided as subpackages. \n\nSecurity Fix(es):\n\n* dovecot: command followed by sufficient number of newlines leads to use-after-free (CVE-2020-10958)\n\n* dovecot: sending mail with empty quoted localpart leads to DoS (CVE-2020-10967)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.","status":"published","published":"2020-11-03T12:33:59Z","modified":"2026-10-29T11:00:19.485528669Z","updated_at":"2026-11-02T15:27:51.196609Z"},{"id":"DSA-4690-1","title":"dovecot - security update","status":"published","published":"2020-05-20T00:00:00Z","modified":"2026-03-09T02:11:06.478287Z","updated_at":"2026-11-02T15:46:17.19998Z"},{"id":"MGASA-2020-0222","title":"Updated dovecot packages fix security vulnerabilities","description":"Dovecot has been updated to fix several security issues.\n\nSending malformed NOOP command causes crash in submission, submission-login\nor lmtp service (CVE-2020-10957).\n\nSending command followed by sufficient number of newlines triggers a\nuse-after-free bug that might crash submission-login, submission or lmtp\nservice (CVE-2020-10958).\n\nSending mail with empty quoted localpart causes submission or lmtp\ncomponent to crash (CVE-2020-10967).\n","status":"published","published":"2020-05-24T18:04:47Z","modified":"2026-04-16T04:41:45.168120927Z","updated_at":"2026-11-02T15:49:41.151324Z"},{"id":"openSUSE-SU-2020:0720-1","title":"Security update for dovecot23","description":"This update for dovecot23 to 2.3.10 fixes the following issues:\n\nSecurity issues fixed:\n\n- CVE-2020-10957: Fixed a crash caused by malformed NOOP commands (bsc#1171457).\n- CVE-2020-10958: Fixed a use-after-free when receiving too many newlines (bsc#1171458).\n- CVE-2020-10967: Fixed a crash in the lmtp and submission components caused by mails with empty quoted localparts (bsc#1171456).\n\nNon-security issues fixed:\n\n- The update to 2.3.10 fixes several bugs. Please refer to \n  https://dovecot.org/doc/NEWS for a complete list of changes.\n\nThis update was imported from the SUSE:SLE-15-SP1:Update update project.","status":"published","published":"2020-05-26T08:13:18Z","modified":"2026-02-04T03:52:23.186673Z","updated_at":"2026-11-02T16:58:31.152112Z"},{"id":"openSUSE-SU-2024:10726-1","title":"dovecot23-2.3.16-1.6 on GA media","description":"These are all security issues fixed in the dovecot23-2.3.16-1.6 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2025-05-07T18:09:35.541917Z","updated_at":"2026-11-02T16:58:34.487567Z"},{"id":"openSUSE-SU-2025:14715-1","title":"dovecot24-2.4.0-1.1 on GA media","description":"These are all security issues fixed in the dovecot24-2.4.0-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2025-01-30T00:00:00Z","modified":"2026-02-04T03:33:59.818366Z","updated_at":"2026-11-02T16:58:36.976155Z"},{"id":"SUSE-SU-2020:1379-1","title":"Security update for dovecot23","description":"This update for dovecot23 fixes the following issues:\n\nSecurity issues fixed:\n\n- CVE-2020-10957: Fixed a crash caused by malformed NOOP commands (bsc#1171457).\n- CVE-2020-10958: Fixed a use-after-free when receiving too many newlines (bsc#1171458).\n- CVE-2020-10967: Fixed a crash in the lmtp and submission components caused by mails with empty quoted localparts (bsc#1171456).\n\nNon-security issues fixed:\n\n- The update to 2.3.10 fixes several bugs. Please refer to\n  https://dovecot.org/doc/NEWS for a complete list of changes.\n","status":"published","published":"2020-05-22T06:00:52Z","modified":"2026-02-04T03:53:22.388605Z","updated_at":"2026-11-02T15:53:47.634847Z"},{"id":"SUSE-SU-2020:1380-1","title":"Security update for dovecot23","description":"This update for dovecot23 to 2.3.10 fixes the following issues:\n\nSecurity issues fixed:\n\n- CVE-2020-10957: Fixed a crash caused by malformed NOOP commands (bsc#1171457).\n- CVE-2020-10958: Fixed a use-after-free when receiving too many newlines (bsc#1171458).\n- CVE-2020-10967: Fixed a crash in the lmtp and submission components caused by mails with empty quoted localparts (bsc#1171456).\n\nNon-security issues fixed:\n\n- The update to 2.3.10 fixes several bugs. Please refer to \n  https://dovecot.org/doc/NEWS for a complete list of changes.\n","status":"published","published":"2020-05-22T06:01:05Z","modified":"2026-02-04T02:26:24.465324Z","updated_at":"2026-11-02T15:53:47.634847Z"},{"id":"USN-4361-1","title":"dovecot vulnerabilities","description":"Philippe Antoine discovered that Dovecot incorrectly handled certain data.\nAn attacker could possibly use this issue to cause a denial of service.\n(CVE-2020-10957, CVE-2020-10967)\n\nPhilippe Antoine discovered that Dovecot incorrectly handled certain data.\nAn attacker could possibly use this issue to cause a denial of service or execute\narbitrary code. (CVE-2020-10958)\n","status":"published","published":"2020-05-18T12:02:07Z","modified":"2026-04-22T10:04:20.977664Z","updated_at":"2026-11-02T16:58:14.547547Z"}]}}