** Changed in: apt (Ubuntu Noble)
Status: New => Triaged
** Changed in: apt (Ubuntu Noble)
Assignee: (unassigned) => Julian Andres Klode (juliank)
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https://bugs.launchpad.net/bugs/2060721
Title:
APT 2.8.0: Promote weak key warnings to errors
Status in apt package in Ubuntu:
Triaged
Status in apt source package in Noble:
Triaged
Bug description:
⚠️ Only land this in the release pocket after PPAs have been resigned
(This bumps the apt version to 2.8.0. APT uses the odd/even number
system, with 2.7.x being the development series for 2.8, and this is
the only change left for the 2.8 release, safe for some minor
translation/test suite improvements)
(This will be uploaded after the beta and may be released before noble
release, as a zero day SRU or within the weeks following the release)
[Impact]
APT is currently just warning about keys that it should be rejecting to give
Launchpad time to resign PPAs. This needs to be bumped to an error such that
the crypto policy is fully implemented and we only trust keys that are still
being trusted. #2055193
A warning provides some help right now to third-parties to fix their
repositories, but it's not *safe*: A repository could have multiple
signing keys and be signed by a good key now, then later, a previous
key still in trusted.gpg.d could be revoked and we'd degrade to
warnings, which, given that we update in the background automatically,
the user may not see.
Other fixes:
- The test suite has been made less flaky in two places
- Documentation translation has been unfuzzied for URL changes in 2.7.14
[Test plan]
The vast regression test suite prevents regression in other components.
Additional tests are:
1. (promotion to error) Take a repository that has a weak key warning,
upgrade apt and check that it is an error
2. (still valid) Check that the main Ubuntu repositories and/or resigned PPAs
work correctly.
We don't have any tests for the test changes or the documentation
translation URL unfuzzying.
[Where problems could occur]
apt will start to fail updates of repositories with weak signing keys, but it
will have warned users about that before. Given that it is still early in the
cycle, and we only enable updates for 24.04.1, this seems the right tradeoff
for future security.
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