{"id":"UBUNTU-CVE-2020-10958","details":"In Dovecot before 2.3.10.1, a crafted SMTP/LMTP message triggers an unauthenticated use-after-free bug in submission-login, submission, or lmtp, and can lead to a crash under circumstances involving many newlines after a command.","modified":"2026-04-22T13:58:27.777652Z","published":"2020-05-18T12:00:00Z","related":["USN-4361-1"],"upstream":["CVE-2020-10958"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-10958"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4361-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-10958"}],"affected":[{"package":{"name":"dovecot","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/dovecot@1:2.3.7.2-1ubuntu3.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.3.7.2-1ubuntu3.1"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_name":"dovecot-auth-lua","binary_version":"1:2.3.7.2-1ubuntu3.1"},{"binary_name":"dovecot-core","binary_version":"1:2.3.7.2-1ubuntu3.1"},{"binary_name":"dovecot-gssapi","binary_version":"1:2.3.7.2-1ubuntu3.1"},{"binary_name":"dovecot-imapd","binary_version":"1:2.3.7.2-1ubuntu3.1"},{"binary_version":"1:2.3.7.2-1ubuntu3.1","binary_name":"dovecot-ldap"},{"binary_name":"dovecot-lmtpd","binary_version":"1:2.3.7.2-1ubuntu3.1"},{"binary_name":"dovecot-lucene","binary_version":"1:2.3.7.2-1ubuntu3.1"},{"binary_version":"1:2.3.7.2-1ubuntu3.1","binary_name":"dovecot-managesieved"},{"binary_name":"dovecot-mysql","binary_version":"1:2.3.7.2-1ubuntu3.1"},{"binary_name":"dovecot-pgsql","binary_version":"1:2.3.7.2-1ubuntu3.1"},{"binary_version":"1:2.3.7.2-1ubuntu3.1","binary_name":"dovecot-pop3d"},{"binary_name":"dovecot-sieve","binary_version":"1:2.3.7.2-1ubuntu3.1"},{"binary_name":"dovecot-solr","binary_version":"1:2.3.7.2-1ubuntu3.1"},{"binary_version":"1:2.3.7.2-1ubuntu3.1","binary_name":"dovecot-sqlite"},{"binary_version":"1:2.3.7.2-1ubuntu3.1","binary_name":"dovecot-submissiond"},{"binary_name":"mail-stack-delivery","binary_version":"1:2.3.7.2-1ubuntu3.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-10958.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"Ubuntu","score":"medium"}]}