It was found that evolution-data-server, a back-end contacts, tasks and calendar information handling data server for Evolution, did not perform SSL certificates validation for secured connections. Evolution email client, using evolution-data-server's calendar caldav and addressbook webdav contact back-ends, holding the trust about the other side of the connection being the valid owner of the presented certificate, could be tricked into accepting a spoofed SSL certificate by mistake (MITM attack). Upstream bug report: [1] https://bugzilla.gnome.org/show_bug.cgi?id=671537 References: [2] https://bugzilla.novell.com/show_bug.cgi?id=760517 [3] https://bugs.launchpad.net/ubuntu/+source/evolution-data-server/+bug/933659/ [4] http://www.openwall.com/lists/oss-security/2012/05/03/3 [5] http://www.openwall.com/lists/oss-security/2012/05/04/4 [6] http://www.openwall.com/lists/oss-security/2012/05/04/5 Upstream patches: [7] https://bugzilla.gnome.org/show_bug.cgi?id=671537#c10 (patch for evolution-data-server) [8] https://bugzilla.gnome.org/attachment.cgi?id=209771 (patch for evolution)
This issue is known upstream.