This bug has been fixed in apt-transport-https 1.2.19 (xenial) and 1.3.4 (yakkety), released 2017-01-26, by Julian Klode in bug 1651923.
If you are still affected by it, update apt-transport-https to the appropriate version and reinstall Ubuntu's version of ttf-mscorefonts- installer. You should remove Debian's version of ttf-mscorefonts- installer beforehand, if you installed it (unless you want to keep using Debian's version of course). If you run into Content-Range errors when reinstalling ttf-mscorefonts- installer, remove the downloaded fonts in /var/lib/update-notifier /package-data-downloads/partial/ and try again. This is a different bug, also fixed recently, but not backported to Xenial and Yakkety yet (bug 1657567). ** Changed in: msttcorefonts (Ubuntu) Status: In Progress => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1607535 Title: ttf-mscorefonts-installer 3.4+nmu1ubuntu2 fails to install core fonts To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/msttcorefonts/+bug/1607535/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs