[Bug 1562733] Re: apt signature requierements prevent updates from some repositories

Launchpad Bug Tracker 1562733 at bugs.launchpad.net
Mon May 9 12:20:16 UTC 2016


Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: appstream (Ubuntu)
       Status: New => Confirmed

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Title:
  apt signature requierements prevent updates from some repositories

Status in appstream package in Ubuntu:
  Confirmed
Status in apt package in Ubuntu:
  In Progress

Bug description:
  Since xenial updated the requirements for the strength of PGP
  signatures of packages, packages from some repositories are no longer
  updated. Apt-get update reports these errors:

  E: Failed to fetch http://[...]/Release  No Hash entry in Release file /var/lib/apt/lists/partial/[...] which is considered strong enough for security purposes
  E: Some index files failed to download. They have been ignored, or old ones used instead.

  While the motivation for the change is valid, the result is a
  potential security problem, as the new versions of the packages that
  may fix recently discovered vulnerabilities are not automatically
  installed.

  One less important but unfortunate effect is a scary message that is
  displayed to the user, without clear explanation that the problem
  needs to be addressed by the repository owner.

  Related: Bug #1558331

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