{"id":"UBUNTU-CVE-2018-12019","details":"The signature verification routine in Enigmail before 2.0.7 interprets user ids as status/control messages and does not correctly keep track of the status of multiple signatures, which allows remote attackers to spoof arbitrary email signatures via public keys containing crafted primary user ids.","modified":"2025-10-24T04:47:03Z","published":"2018-06-13T23:29:00Z","upstream":["CVE-2018-12019"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-12019"},{"type":"REPORT","url":"https://neopg.io/blog/enigmail-signature-spoof/"},{"type":"REPORT","url":"https://sourceforge.net/p/enigmail/forum/announce/thread/b948279f/"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-12019"}],"affected":[{"package":{"name":"enigmail","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/enigmail@2:2.1.6+ds1-1~ubuntu0.16.04.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:1.8.2-0ubuntu1","2:1.8.2-4fakesync1","2:1.9.1-1","2:1.9.7-1~ubuntu0.16.04.1","2:1.9.9-0ubuntu0.16.04.1","2:2.0.3-0ubuntu2~16.04.1","2:2.0.6-0ubuntu1~16.04.1","2:2.0.7-0ubuntu1~16.04.1","2:2.0.8-1~ubuntu0.16.04.2","2:2.1.6+ds1-1~ubuntu0.16.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"enigmail","binary_version":"2:2.1.6+ds1-1~ubuntu0.16.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-12019.json"}},{"package":{"name":"enigmail","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/enigmail@2:2.2.4-0ubuntu0.18.04.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:1.9.8.3-1","2:1.9.9-1","2:1.9.9-2","2:2.0.3-0ubuntu2~18.04.1","2:2.0.6-0ubuntu1~18.04.1","2:2.0.7-0ubuntu1~18.04.1","2:2.0.8-1~ubuntu0.18.04.2","2:2.1.2-0ubuntu1~18.04.2","2:2.1.6+ds1-1~ubuntu0.18.04.1","2:2.2.4-0ubuntu0.18.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"enigmail","binary_version":"2:2.2.4-0ubuntu0.18.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-12019.json"}},{"package":{"name":"enigmail","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/enigmail@2:2.2.4-0ubuntu0.20.04.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:2.1.2-0ubuntu1","2:2.1.3+ds1-3","2:2.1.3+ds1-4","2:2.1.5+ds1-1","2:2.1.6+ds1-1","2:2.2.4-0ubuntu0.20.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"enigmail","binary_version":"2:2.2.4-0ubuntu0.20.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-12019.json"}},{"package":{"name":"enigmail","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/enigmail@2:2.2.4-0.3?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2:2.2.4-0.3"],"ecosystem_specific":{"binaries":[{"binary_name":"enigmail","binary_version":"2:2.2.4-0.3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-12019.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]}