Hello Adam, or anyone else affected,

Accepted glib2.0 into bionic-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/glib2.0/2.56.4-0ubuntu0.18.04.5 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 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.

** Changed in: glib2.0 (Ubuntu Bionic)
       Status: In Progress => Fix Committed

** Tags added: verification-needed-bionic

You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to ibus in Ubuntu.

  IBus no longer works in Qt applications after upgrade

Status in GLib:
  Fix Released
Status in ibus:
  Fix Released
Status in glib2.0 package in Ubuntu:
  Fix Committed
Status in ibus package in Ubuntu:
  Fix Released
Status in glib2.0 source package in Xenial:
  In Progress
Status in glib2.0 source package in Bionic:
  Fix Committed
Status in glib2.0 source package in Disco:
  In Progress
Status in glib2.0 source package in Eoan:
  Fix Committed
Status in glib2.0 source package in Focal:
  Fix Committed
Status in ibus source package in Focal:
  Fix Released
Status in glib2.0 package in Debian:
  Fix Released

Bug description:

  IBus was broken for Qt applications as a regression due to the fix of
  CVE-2019-14822. As a result the IBus patch was disabled temporarily,
  which fixed IBus from a usability POV.

  The real fix has been made in glib2.0, and the updates in -proposed
  will allow the IBus patch to be re-enabled.

  [Test Case]

   * On a standard Ubuntu {eoan,disco,bionic,xenial} installation
     - Upgrade the glib2.0 packages from
     - Upgrade the ibus packages from
     - Install some IBus input method, e.g. ibus-libpinyin
     - Install some Qt application, e.g. Kate

  * Relogin (maybe reboot)

  * Add the input method to the input sources

  * Open the Qt app and try to input something using the IBus IM

  => Find that the transliteration works as expected

  [Regression Potential]

  The applicable patches origin from glib upstream:
  Consequently the changes have been reviewed by the glib maintainer, but also 
tested by the IBus maintainer, by me (gunnarhj), and - of course - the author 
Simon McVittie. The changes have been in Debian unstable since 2019-10-30.

  [Original description]

  Kubuntu Release 18.04.3 LTS

  Expected behavior:
  ibus continues working as before after applying security update 
1.5.17-ubuntu5.1 from version 1.5.17-ubuntu5.

  Observed behavior:
  ibus is not usable anymore in Qt applications.

  After updating ibus and the related packages ibus-gtk, ibus-gtk3, 
libibus-1.0-5 and gir1.2-ibus-1.0 all from version 1.5.17-ubuntu5 to 
1.5.17-ubuntu5.1, I can no longer use ibus in Qt applications. Using 
shift-space no longer changes the selected input method and even when i switch 
to the mozc input method in a gtk application, i can not use it in any Qt 
  When starting qtconfig in a terminal, I also get the following message:

  Bus::open: Connect ibus failed!
  IBusInputContext::createInputContext: no connection to ibus-daemon

  This bug was not present in version 1.5.17-3ubuntu5 and I also
  confirmed that downgrading the packages to version 1.5.17-3ubuntu4
  restores ibus functionality in Qt applications.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ibus 1.5.17-3ubuntu5.1
  ProcVersionSignature: Ubuntu 5.0.0-30.32~18.04.1-generic 5.0.21
  Uname: Linux 5.0.0-30-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.9-0ubuntu7.7
  Architecture: amd64
  CurrentDesktop: KDE
  Date: Sat Sep 21 07:58:56 2019
  InstallationDate: Installed on 2019-06-28 (84 days ago)
  InstallationMedia: Kubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 
  SourcePackage: ibus
  UpgradeStatus: No upgrade log present (probably fresh install)

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