{"id":"USN-4674-1","summary":"dovecot vulnerabilities","details":"It was discovered that Dovecot incorrectly handled certain imap hibernation\ncommands. A remote authenticated attacker could possibly use this issue to\naccess other users' email. This issue only affected Ubuntu 18.04 LTS,\nUbuntu 20.04 LTS, and Ubuntu 20.10. (CVE-2020-24386)\n\nInnokentii Sennovskiy discovered that Dovecot incorrectly handled MIME\nparsing. A remote attacker could possibly use this issue to cause Dovecot\nto crash, resulting in a denial of service. (CVE-2020-25275)\n","modified":"2026-04-22T10:20:54.364740Z","published":"2021-01-04T14:04:39Z","related":["UBUNTU-CVE-2020-24386","UBUNTU-CVE-2020-25275"],"upstream":["CVE-2020-24386","CVE-2020-25275","UBUNTU-CVE-2020-24386","UBUNTU-CVE-2020-25275"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4674-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-24386"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-25275"}],"affected":[{"package":{"name":"dovecot","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/dovecot@1:2.2.22-1ubuntu2.14?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.2.22-1ubuntu2.14"}]}],"versions":["1:2.2.18-2ubuntu2","1:2.2.22-1ubuntu1","1:2.2.22-1ubuntu2","1:2.2.22-1ubuntu2.1","1:2.2.22-1ubuntu2.2","1:2.2.22-1ubuntu2.3","1:2.2.22-1ubuntu2.4","1:2.2.22-1ubuntu2.6","1:2.2.22-1ubuntu2.7","1:2.2.22-1ubuntu2.8","1:2.2.22-1ubuntu2.9","1:2.2.22-1ubuntu2.10","1:2.2.22-1ubuntu2.11","1:2.2.22-1ubuntu2.12","1:2.2.22-1ubuntu2.13"],"ecosystem_specific":{"binaries":[{"binary_version":"1:2.2.22-1ubuntu2.14","binary_name":"dovecot-core"},{"binary_version":"1:2.2.22-1ubuntu2.14","binary_name":"dovecot-gssapi"},{"binary_version":"1:2.2.22-1ubuntu2.14","binary_name":"dovecot-imapd"},{"binary_version":"1:2.2.22-1ubuntu2.14","binary_name":"dovecot-ldap"},{"binary_version":"1:2.2.22-1ubuntu2.14","binary_name":"dovecot-lmtpd"},{"binary_version":"1:2.2.22-1ubuntu2.14","binary_name":"dovecot-lucene"},{"binary_version":"1:2.2.22-1ubuntu2.14","binary_name":"dovecot-managesieved"},{"binary_version":"1:2.2.22-1ubuntu2.14","binary_name":"dovecot-mysql"},{"binary_version":"1:2.2.22-1ubuntu2.14","binary_name":"dovecot-pgsql"},{"binary_version":"1:2.2.22-1ubuntu2.14","binary_name":"dovecot-pop3d"},{"binary_version":"1:2.2.22-1ubuntu2.14","binary_name":"dovecot-sieve"},{"binary_version":"1:2.2.22-1ubuntu2.14","binary_name":"dovecot-solr"},{"binary_version":"1:2.2.22-1ubuntu2.14","binary_name":"dovecot-sqlite"},{"binary_version":"1:2.2.22-1ubuntu2.14","binary_name":"mail-stack-delivery"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4674-1.json","cves_map":{"ecosystem":"Ubuntu:16.04:LTS","cves":[{"id":"CVE-2020-25275","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}]}}},{"package":{"name":"dovecot","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/dovecot@1:2.2.33.2-1ubuntu4.7?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.2.33.2-1ubuntu4.7"}]}],"versions":["1:2.2.27-3ubuntu1","1:2.2.33.2-1ubuntu1","1:2.2.33.2-1ubuntu2","1:2.2.33.2-1ubuntu3","1:2.2.33.2-1ubuntu4","1:2.2.33.2-1ubuntu4.1","1:2.2.33.2-1ubuntu4.2","1:2.2.33.2-1ubuntu4.3","1:2.2.33.2-1ubuntu4.4","1:2.2.33.2-1ubuntu4.5","1:2.2.33.2-1ubuntu4.6"],"ecosystem_specific":{"binaries":[{"binary_version":"1:2.2.33.2-1ubuntu4.7","binary_name":"dovecot-core"},{"binary_version":"1:2.2.33.2-1ubuntu4.7","binary_name":"dovecot-gssapi"},{"binary_version":"1:2.2.33.2-1ubuntu4.7","binary_name":"dovecot-imapd"},{"binary_version":"1:2.2.33.2-1ubuntu4.7","binary_name":"dovecot-ldap"},{"binary_version":"1:2.2.33.2-1ubuntu4.7","binary_name":"dovecot-lmtpd"},{"binary_version":"1:2.2.33.2-1ubuntu4.7","binary_name":"dovecot-managesieved"},{"binary_version":"1:2.2.33.2-1ubuntu4.7","binary_name":"dovecot-mysql"},{"binary_version":"1:2.2.33.2-1ubuntu4.7","binary_name":"dovecot-pgsql"},{"binary_version":"1:2.2.33.2-1ubuntu4.7","binary_name":"dovecot-pop3d"},{"binary_version":"1:2.2.33.2-1ubuntu4.7","binary_name":"dovecot-sieve"},{"binary_version":"1:2.2.33.2-1ubuntu4.7","binary_name":"dovecot-solr"},{"binary_version":"1:2.2.33.2-1ubuntu4.7","binary_name":"dovecot-sqlite"},{"binary_version":"1:2.2.33.2-1ubuntu4.7","binary_name":"mail-stack-delivery"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4674-1.json","cves_map":{"ecosystem":"Ubuntu:18.04:LTS","cves":[{"id":"CVE-2020-24386","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2020-25275","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}]}}},{"package":{"name":"dovecot","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/dovecot@1:2.3.7.2-1ubuntu3.3?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.3.7.2-1ubuntu3.3"}]}],"versions":["1:2.3.4.1-5ubuntu3","1:2.3.7.2-1ubuntu1","1:2.3.7.2-1ubuntu2","1:2.3.7.2-1ubuntu3","1:2.3.7.2-1ubuntu3.1","1:2.3.7.2-1ubuntu3.2"],"ecosystem_specific":{"binaries":[{"binary_version":"1:2.3.7.2-1ubuntu3.3","binary_name":"dovecot-auth-lua"},{"binary_version":"1:2.3.7.2-1ubuntu3.3","binary_name":"dovecot-core"},{"binary_version":"1:2.3.7.2-1ubuntu3.3","binary_name":"dovecot-gssapi"},{"binary_version":"1:2.3.7.2-1ubuntu3.3","binary_name":"dovecot-imapd"},{"binary_version":"1:2.3.7.2-1ubuntu3.3","binary_name":"dovecot-ldap"},{"binary_version":"1:2.3.7.2-1ubuntu3.3","binary_name":"dovecot-lmtpd"},{"binary_version":"1:2.3.7.2-1ubuntu3.3","binary_name":"dovecot-lucene"},{"binary_version":"1:2.3.7.2-1ubuntu3.3","binary_name":"dovecot-managesieved"},{"binary_version":"1:2.3.7.2-1ubuntu3.3","binary_name":"dovecot-mysql"},{"binary_version":"1:2.3.7.2-1ubuntu3.3","binary_name":"dovecot-pgsql"},{"binary_version":"1:2.3.7.2-1ubuntu3.3","binary_name":"dovecot-pop3d"},{"binary_version":"1:2.3.7.2-1ubuntu3.3","binary_name":"dovecot-sieve"},{"binary_version":"1:2.3.7.2-1ubuntu3.3","binary_name":"dovecot-solr"},{"binary_version":"1:2.3.7.2-1ubuntu3.3","binary_name":"dovecot-sqlite"},{"binary_version":"1:2.3.7.2-1ubuntu3.3","binary_name":"dovecot-submissiond"},{"binary_version":"1:2.3.7.2-1ubuntu3.3","binary_name":"mail-stack-delivery"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4674-1.json","cves_map":{"ecosystem":"Ubuntu:20.04:LTS","cves":[{"id":"CVE-2020-24386","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2020-25275","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}]}}}],"schema_version":"1.7.5"}