{"id":"UBUNTU-CVE-2020-10957","details":"In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP command causes a NULL Pointer Dereference and crash in submission-login, submission, or lmtp.","modified":"2026-04-22T12:26:11.652189Z","published":"2020-05-18T12:00:00Z","related":["USN-4361-1"],"upstream":["CVE-2020-10957"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-10957"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4361-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-10957"}],"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":{"availability":"No subscription required","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_name":"dovecot-ldap","binary_version":"1:2.3.7.2-1ubuntu3.1"},{"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_name":"dovecot-managesieved","binary_version":"1:2.3.7.2-1ubuntu3.1"},{"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_name":"dovecot-pop3d","binary_version":"1:2.3.7.2-1ubuntu3.1"},{"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_name":"dovecot-sqlite","binary_version":"1:2.3.7.2-1ubuntu3.1"},{"binary_name":"dovecot-submissiond","binary_version":"1:2.3.7.2-1ubuntu3.1"},{"binary_name":"mail-stack-delivery","binary_version":"1:2.3.7.2-1ubuntu3.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-10957.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:H"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}