@janl in my case, apt was unable to use the _apt user due to misconfiguration. it did report (some) failure, which to ignore would be my choice and responsibility then - there is no way of making apt resolve the _apt user issue in a way that would lead to consistently increasing system security.
hence this is not a security bug, but rather just a request for increasing verbosity in error messages - in order to ease debugging OTHER bugs. please verify that you did indeed have the same issue with the following steps: 1. run apt, preserving the /tmp/apt.(data|sig).+ downloads (e.g. by *temporarily* chattr+a-ing your /tmp directory) 2. run the apt-key command on the exact same files from a root command line and compare output 3. run the apt-key command on the exact same files from a _apt command line and compare output -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1577926 Title: apt-key works fine, yet apt fails with "Could not execute 'apt-key'" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1577926/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs