[Bug 1996503] Please test proposed package

[Steve Langasek]

Hello Julian, or anyone else affected,

Accepted shim-signed into bionic-proposed. The package will build now
and be available at https://launchpad.net/ubuntu/+source/shim-
signed/1.37~18.04.13 in a few hours, and then in the -proposed
repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
bionic to verification-done-bionic. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-bionic. In either case, without details of your testing we will
not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

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https://bugs.launchpad.net/bugs/1996503

Title:
  shim 15.7-0ubuntu1

Status in shim package in Ubuntu:
  In Progress
Status in shim-signed package in Ubuntu:
  In Progress
Status in shim source package in Bionic:
  Fix Committed
Status in shim-signed source package in Bionic:
  Fix Committed
Status in shim source package in Focal:
  Fix Committed
Status in shim-signed source package in Focal:
  Fix Committed
Status in shim source package in Jammy:
  Fix Committed
Status in shim-signed source package in Jammy:
  Fix Committed
Status in shim source package in Kinetic:
  Fix Committed
Status in shim-signed source package in Kinetic:
  Fix Committed

Bug description:
  [Impact]
  New upstream release; shim security update CVE-2022-28737

  [Test plan]
  https://wiki.ubuntu.com/UEFI/SecureBoot/ShimUpdateProcess/TestPlan

  [Where problems could occur]
  Machines could become unbootable due to bugs as usual.

  Key rotations that require newer kernels can't enforce newer kernels
  being on the system prior to updates resulting in unbootable systems
  if kernels are not available.

  Requires the grub2-unsigned >= 2.04-1ubuntu47.4, >= 2.06-2ubuntu10 to be
  published to security and on each machine first too. Maybe should add Breaks to those (though you can set 'latest' policy and it would require upcoming grub uploads, so not _entirely_ useful).

  Also breaks fwupd.

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