DISPUTED GNOME Evolution through 3.38.3 produces a "Valid signature" message for an unknown identifier on a previously trusted key because Evolution does not retrieve enough information from the GnuPG API. NOTE: third parties dispute the significance of this issue, and dispute whether Evolution is the best place to change this behavior.

Evolution 2.2.x and 2.3.x in GNOME 2.7 and 2.8, when "load images if sender in addressbook" is enabled, allows remote attackers to cause a denial of service (persistent crash) via a crafted "From" header that triggers an assert error in camel-internet-address.c when a null pointer is used.

A Debian bug report [1] brought to light the fact that Evolution does not create its data files with appropriate permissions. Because of this, if user A on a system uses Evolut ion for email, user B can read any of user A's email. The default permissions for ~/.evolution is 0755, and the default permissions for Evolution data files is 0644 (although s trangely enough the default permissions for .index files is 0600).

As well, by default in Fedora and RHEL5, a user's home directory has mode 0755 permissions.

By contrast, Firefox creates ~/.mozilla/firefox as mode 0700, protecting user bookmarks and caches.

Evolution should probably create/enforce ~/.evolution being mode 0700.

[1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=526409