CVE-2016-6190
SOGo before 2.3.12 and 3.x before 3.1.1 does not restrict access to the UID and DTSTAMP attributes, which allows remote authenticated users to obtain sensitive information about appointments with the "View the Date & Time" restriction, as demonstrated by correlating UIDs and DTSTAMPs between all users.
Date published : 2017-02-17
https://github.com/inverse-inc/sogo/commit/717f45f640a2866b76a8984139391fae64339225
https://github.com/inverse-inc/sogo/commit/875a4aca3218340fd4d3141950c82c2ff45b343d