desktop-packages team mailing list archive
-
desktop-packages team
-
Mailing list archive
-
Message #32953
[Bug 715874] Re: gnome thumbnailers should have an apparmor profile
** Package changed: gnome-control-center (Ubuntu) => gnome-utils
(Ubuntu)
** Package changed: gnome-desktop (Ubuntu) => gnome-desktop3 (Ubuntu)
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-desktop in Ubuntu.
https://bugs.launchpad.net/bugs/715874
Title:
gnome thumbnailers should have an apparmor profile
Status in “gnome-desktop3” package in Ubuntu:
Triaged
Status in “gnome-utils” package in Ubuntu:
In Progress
Status in “totem” package in Ubuntu:
In Progress
Bug description:
Binary package hint: gnome-control-center
Nautilus normally uses gnome-thumbnail-font, to provide font previews. Eg:
$ gconftool-2 -g /desktop/gnome/thumbnailers/application@x-font-ttf/enable
true
$ gconftool-2 -g /desktop/gnome/thumbnailers/application@x-font-ttf/command
gnome-thumbnail-font %u %o
If a flaw is discovered in a font library or Gnome and a user
navigates to a directory that has a malicious font file, gnome-
thumbnail-font could be used to execute arbitrary code, write out to
files or leak information. Providing an apparmor profile for gnome-
thumbnail-font would be a good step towards proactively protecting the
user from this sort of attack.
The same can be said for other thumbnailers. Nautilus also uses totem-
video-thumbnail and evince-thumbnailer (evince-thumbnailer has an
apparmor profile already). For images, nautilus uses gdk-pixbuf
routines via gnome-desktop, but these can be altered to use evince-
thumbnailer by installing schema files for the various image mime-
types and updating gnome-desktop to not fallback to gdk-pixbuf on
thumbnail script error.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/gnome-desktop3/+bug/715874/+subscriptions