Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : AppArmor update (USN-3784-1)

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-3784-1 advisory. As a security improvement, this update adjusts the private-files abstraction to disallow writing to thumbnailer configuration files...