[Bug 1744318] Re: changelogs.ubuntu.com should be using HTTPS

[Launchpad Bug Tracker]

** Branch linked: lp:~juliank/ubuntu-release-upgrader/https-changelogs

** Branch linked: lp:~juliank/update-manager/https-changelogs

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https://bugs.launchpad.net/bugs/1744318

Title:
  changelogs.ubuntu.com should be using HTTPS

Status in ubuntu-release-upgrader package in Ubuntu:
  New
Status in update-manager package in Ubuntu:
  Triaged
Status in ubuntu-release-upgrader source package in Bionic:
  New
Status in update-manager source package in Bionic:
  Triaged

Bug description:
  Although the packages listed in meta-release files on
  changelogs.ubuntu.com are signature-checked there doesn't appear to be
  any way to verify the meta-release files are valid so a man-in-the-
  middle could maliciously supply an alternate meta-release.

  meta-release files should be signed with the archive GPG key and/or
  delivered over HTTPS.

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