{"id":"UBUNTU-CVE-2017-17688","details":"** DISPUTED ** The OpenPGP specification allows a Cipher Feedback Mode (CFB) malleability-gadget attack that can indirectly lead to plaintext exfiltration, aka EFAIL. NOTE: third parties report that this is a problem in applications that mishandle the Modification Detection Code (MDC) feature or accept an obsolete packet type, not a problem in the OpenPGP specification.","modified":"2025-07-16T07:36:26.041665Z","published":"2018-05-16T19:29:00Z","withdrawn":"2025-07-18T16:44:17Z","upstream":["CVE-2017-17688"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-17688"},{"type":"REPORT","url":"https://efail.de"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-17688"}],"affected":[{"package":{"name":"enigmail","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/enigmail@2:2.0.8-1~ubuntu0.16.04.2?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:2.0.8-1~ubuntu0.16.04.2"}]}],"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"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"2:2.0.8-1~ubuntu0.16.04.2","binary_name":"enigmail"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-17688.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}