{"id":"UBUNTU-CVE-2017-17847","details":"An issue was discovered in Enigmail before 1.9.9. Signature spoofing is possible because the UI does not properly distinguish between an attachment signature, and a signature that applies to the entire containing message, aka TBE-01-021. This is demonstrated by an e-mail message with an attachment that is a signed e-mail message in message/rfc822 format.","modified":"2025-07-16T07:36:27.627935Z","published":"2017-12-27T17:08:00Z","upstream":["CVE-2017-17847"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-17847"},{"type":"REPORT","url":"https://enigmail.net/download/other/Enigmail%20Pentest%20Report%20by%20Cure53%20-%20Excerpt.pdf"},{"type":"REPORT","url":"https://lists.debian.org/debian-security-announce/2017/msg00333.html"},{"type":"REPORT","url":"https://sourceforge.net/p/enigmail/bugs/709/"},{"type":"REPORT","url":"https://www.debian.org/security/2017/dsa-4070"},{"type":"REPORT","url":"https://www.mail-archive.com/enigmail-users@enigmail.net/msg04280.html"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-17847"}],"affected":[{"package":{"name":"enigmail","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/enigmail@2:1.9.9-0ubuntu0.14.04.1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.9.9-0ubuntu0.14.04.1"}]}],"versions":["2:1.5.2-0ubuntu1","2:1.7-0ubuntu0.14.04.1","2:1.7.2-0ubuntu0.14.04.1","2:1.8.2-0ubuntu0.14.04.1","2:1.9.7-0ubuntu0.14.04.1"],"ecosystem_specific":{"binaries":[{"binary_version":"2:1.9.9-0ubuntu0.14.04.1","binary_name":"enigmail"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-17847.json"}},{"package":{"name":"enigmail","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/enigmail@2:1.9.9-0ubuntu0.16.04.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.9.9-0ubuntu0.16.04.1"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_version":"2:1.9.9-0ubuntu0.16.04.1","binary_name":"enigmail"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-17847.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":"high"}]}