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.
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.