[Bug 1782320] Re: Braille display inoperable in GUI since polkit-update
This bug was fixed in the package brltty - 5.5-4ubuntu2.0.1 --- brltty (5.5-4ubuntu2.0.1) bionic; urgency=medium * debian/patches/policykit-fix: - backport fix for polkit authentication following CVE-2018-1116 (lp: #1782320) -- Sebastien Bacher Wed, 29 Aug 2018 09:57:52 +0200 ** Changed in: brltty (Ubuntu Bionic) Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1782320 Title: Braille display inoperable in GUI since polkit-update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/brltty/+bug/1782320/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1782320] Re: Braille display inoperable in GUI since polkit-update
thanks for testing! ** Tags removed: verification-needed verification-needed-bionic ** Tags added: verification-done verification-done-bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1782320 Title: Braille display inoperable in GUI since polkit-update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/brltty/+bug/1782320/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1782320] Re: Braille display inoperable in GUI since polkit-update
Have tested the brltty package in bionic-proposed as instructed in comment #12: v5.5-4ubuntu2.0.1 It works as expected. After commenting out the "api-parameters Auth=keyfile" line in brltty.conf and restarting the machine (just to be sure), my braille display works completely in both text console as in my GUI desktop. Thanks for fixing this! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1782320 Title: Braille display inoperable in GUI since polkit-update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/brltty/+bug/1782320/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1782320] Re: Braille display inoperable in GUI since polkit-update
This bug was fixed in the package brltty - 5.6-5ubuntu1 --- brltty (5.6-5ubuntu1) cosmic; urgency=medium * Merged fixes from Debian, including the patch to work with the current polkit version (lp: #1782320) brltty (5.6-5) unstable; urgency=medium * patches/atspi2-shutdown: Automatically shut down brltty on session shut down. * control: Bump Standards-Version to 4.1.5 (no changes). * control: Mark python-brlapi and python3-brlapi Multi-Arch: same. * patches/policykit-fix: Fix polkit authentication (Closes: #905058). -- Sebastien Bacher Wed, 29 Aug 2018 09:46:17 +0200 ** Changed in: brltty (Ubuntu) Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1782320 Title: Braille display inoperable in GUI since polkit-update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/brltty/+bug/1782320/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1782320] Re: Braille display inoperable in GUI since polkit-update
Hello Frans-Willem, or anyone else affected, Accepted brltty into bionic-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/brltty/5.5-4ubuntu2.0.1 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! ** Changed in: brltty (Ubuntu Bionic) Status: New => Fix Committed ** Tags added: verification-needed verification-needed-bionic -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1782320 Title: Braille display inoperable in GUI since polkit-update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/brltty/+bug/1782320/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1782320] Re: Braille display inoperable in GUI since polkit-update
** Changed in: brltty (Ubuntu Bionic) Importance: Undecided => High ** Changed in: brltty (Ubuntu Bionic) Assignee: (unassigned) => Sebastien Bacher (seb128) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1782320 Title: Braille display inoperable in GUI since polkit-update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/brltty/+bug/1782320/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1782320] Re: Braille display inoperable in GUI since polkit-update
This is not yet fixed in cosmic as version 5.6-5ubuntu1 is still in -proposed. ** Also affects: brltty (Ubuntu Bionic) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1782320 Title: Braille display inoperable in GUI since polkit-update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/brltty/+bug/1782320/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1782320] Re: Braille display inoperable in GUI since polkit-update
** Changed in: brltty (Ubuntu) Status: Confirmed => Fix Committed ** Changed in: brltty (Ubuntu) Importance: Undecided => High ** Description changed: + * Impact + + Since the fix for CVE-2018-1116 in policykit-1 the braille display + doesn't work in graphical UIs + + * Test case + Log into an Ubuntu/GNOME session and activate the braille display + + * Regression potential + The braille display should keep working on the command line and in graphical sessions + + -- + + $ lsb_release -rd Description: Ubuntu 18.04 LTS Release: 18.04 $ apt-cache policy brltty brltty: - Installed: 5.5-4ubuntu2 - Candidate: 5.5-4ubuntu2 - Version table: - *** 5.5-4ubuntu2 500 - 500 http://nl.archive.ubuntu.com/ubuntu bionic/main amd64 Packages - 100 /var/lib/dpkg/status + Installed: 5.5-4ubuntu2 + Candidate: 5.5-4ubuntu2 + Version table: + *** 5.5-4ubuntu2 500 + 500 http://nl.archive.ubuntu.com/ubuntu bionic/main amd64 Packages + 100 /var/lib/dpkg/status - $ apt-cache policy policykit-1-gnome + $ apt-cache policy policykit-1-gnome policykit-1-gnome: - Installed: (none) - Candidate: 0.105-6ubuntu2 - Version table: - 0.105-6ubuntu2 500 - 500 http://nl.archive.ubuntu.com/ubuntu bionic/main amd64 Packages + Installed: (none) + Candidate: 0.105-6ubuntu2 + Version table: + 0.105-6ubuntu2 500 + 500 http://nl.archive.ubuntu.com/ubuntu bionic/main amd64 Packages Expected behavior: After a system upgrade, the braille display should function as before the upgrade. Actual behavior: Since the upgrade, the braille display only works in console mode (Ctrl+Alt+F3, -F4, etc.) In GUI mode, the display reads "Screen not in text mode". Restarting Orca (screenreader) has no effect. Restarting the system has no effect. This is the upgrade command, taken from /var/log/apt/history.log: Start-Date: 2018-07-17 07:47:02 Commandline: /usr/bin/unattended-upgrade Upgrade: libpolkit-gobject-1-0:amd64 (0.105-20, 0.105-20ubuntu0.18.04.1), libpolkit-agent-1-0:amd64 (0.105-20, 0.105-20ubuntu0.18.04.1), libpolkit-backend-1-0:amd64 (0.105-20, 0.105-20ubuntu0.18.04.1), policykit-1:amd64 (0.105-20, 0.105-20ubuntu0.18.04.1), gir1.2-polkit-1.0:amd64 (0.105-20, 0.105-20ubuntu0.18.04.1) End-Date: 2018-07-17 07:47:04 These are the error messages taken from /var/log/syslog: Jul 18 10:55:34 WaanzinsPC2 brltty[2635]: polkit_authority_check_authorization_sync error 11: Resource temporarily unavailable. Jul 18 10:55:34 WaanzinsPC2 brltty[2635]: brltty: polkit_authority_check_authorization_sync error 11: Resource temporarily unavailable. Jul 18 10:55:34 WaanzinsPC2 brltty[2635]: BrlAPI connection fd=22 accepted: local Jul 18 10:55:34 WaanzinsPC2 brltty[2635]: brltty: BrlAPI connection fd=22 accepted: local Jul 18 10:55:34 WaanzinsPC2 brltty[2635]: polkit_authority_check_authorization_sync error 11: Resource temporarily unavailable. Jul 18 10:55:34 WaanzinsPC2 brltty[2635]: brltty: polkit_authority_check_authorization_sync error 11: Resource temporarily unavailable. Jul 18 10:55:34 WaanzinsPC2 brltty[2635]: BrlAPI connection fd=22 accepted: local Jul 18 10:55:34 WaanzinsPC2 brltty[2635]: brltty: BrlAPI connection fd=22 accepted: local Jul 18 10:55:34 WaanzinsPC2 brltty[2635]: polkit_authority_check_authorization_sync error 11: Resource temporarily unavailable. Jul 18 10:55:34 WaanzinsPC2 brltty[2635]: brltty: polkit_authority_check_authorization_sync error 11: Resource temporarily unavailable. Jul 18 10:55:34 WaanzinsPC2 brltty[2635]: BrlAPI connection fd=22 accepted: local Jul 18 10:55:34 WaanzinsPC2 brltty[2635]: brltty: BrlAPI connection fd=22 accepted: local Jul 18 10:55:34 WaanzinsPC2 brltty[2635]: polkit_authority_check_authorization_sync error 11: Resource temporarily unavailable. Jul 18 10:55:34 WaanzinsPC2 brltty[2635]: brltty: polkit_authority_check_authorization_sync error 11: Resource temporarily unavailable. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: brltty 5.5-4ubuntu2 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 Uname: Linux 4.15.0-20-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 Date: Wed Jul 18 11:03:27 2018 ExecutablePath: /bin/brltty InstallationDate: Installed on 2018-05-15 (63 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) LocalLibraries: /usr/local/lib/libgpg-error.so.0.24.2 /usr/local/lib/libgcrypt.so.20.2.2 SourcePackage: brltty UpgradeStatus: No upgrade log present (probably fresh install) mtime.conffile..etc.brltty.conf: 2018-05-16T09:36:35.497752 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1782320 Title: Braille display inoperable in GUI since polkit-update To manage notifications about
[Bug 1782320] Re: Braille display inoperable in GUI since polkit-update
>From the upstream policykit bug entry, it is actually a misuse of the policykit API from brltty. I have uploaded a fix in Debian's brltty 5.6-5. Ubuntu should definitely include the policykit-fix patch contained in that 5.6-5 version as an update to ubuntu 18.04, otherwise all blind users will have the issue, thus unable to use the graphical desktop. ** Package changed: policykit-1 (Ubuntu) => brltty (Ubuntu) ** Changed in: brltty (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1782320 Title: Braille display inoperable in GUI since polkit-update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/brltty/+bug/1782320/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1782320] Re: Braille display inoperable in GUI since polkit-update
Yes, disabling that patch fixes the issue. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1782320 Title: Braille display inoperable in GUI since polkit-update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/policykit-1/+bug/1782320/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1782320] Re: Braille display inoperable in GUI since polkit-update
I can confirm the same issue on Debian: upgrading from version 0.105-20 to version 0.105-21 brings the same issue. ** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-1116 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1782320 Title: Braille display inoperable in GUI since polkit-update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/policykit-1/+bug/1782320/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1782320] Re: Braille display inoperable in GUI since polkit-update
This is most probably due to the introduction of Fix-CVE-2018-1116 -Trusting-client-supplied-UID.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1782320 Title: Braille display inoperable in GUI since polkit-update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/policykit-1/+bug/1782320/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1782320] Re: Braille display inoperable in GUI since polkit-update
This seems to be an issue within policykit itself. Printing the actual error shows: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: process with PID 12570 has been replaced >From reading the source code, it seems that policykit is checking the start time of the program and finds a mismatch. It happens that orca is run as a Python script, so I thought that might be due to the script startup procedure, but starting a C brlapi client gives the same issue. At any rate, really looks like not an issue in brltty itself. ** Package changed: brltty (Ubuntu) => policykit-1 (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1782320 Title: Braille display inoperable in GUI since polkit-update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/policykit-1/+bug/1782320/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1782320] Re: Braille display inoperable in GUI since polkit-update
Note: to reproduce the issue, one just needs to install an Ubuntu 18.04 system, start brltty by hand as root with: sudo brltty -b no then try to connect to it as normal logged-in user through brlapi: python3 >>> import brlapi >>> b = brlapi.Connection() which shouldn't raise an exception. Logs can be seen in /var/log/syslog (unfortunately the current package source code only prints errno instead of the GError). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1782320 Title: Braille display inoperable in GUI since polkit-update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/policykit-1/+bug/1782320/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1782320] Re: Braille display inoperable in GUI since polkit-update
Well, this is not a real solution, we need to fix polkit, otherwise all users will have the same issue, and we don't want to make them all revert back to file-based authentication. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1782320 Title: Braille display inoperable in GUI since polkit-update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/brltty/+bug/1782320/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1782320] Re: Braille display inoperable in GUI since polkit-update
Thanks to a member of the BrlTTY mailing list, my problem is solved. It seems that the default authorization of BrltTTY under Ubuntu was no longer working. Providing it with a dummy key-file was enough to get it back to work - instantly. The display came back to life immediately after these steps: - edit /etc/brltty.conf, uncomment the line "api-parameters Auth=keyfile:/etc/brlapi.key" - sudo touch /etc/brlapi.key - sudo chmod 0644 /etc/brlapi.key For me, the issue is solved. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1782320 Title: Braille display inoperable in GUI since polkit-update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/brltty/+bug/1782320/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1782320] Re: Braille display inoperable in GUI since polkit-update
Have just replayed the upgrade in a VirtualBox VM using a clean install of Ubuntu 18.04. Before the upgrade (of policy-kit), the braille display works (both output and input). After the upgrade and reboot, the same errors appear in /var/log/syslog: Jul 18 11:49:43 test-VirtualBox brltty[409]: BrlAPI connection fd=27 accepted: local Jul 18 11:49:43 test-VirtualBox brltty[409]: brltty: BrlAPI connection fd=27 accepted: local Jul 18 11:49:43 test-VirtualBox brltty[409]: polkit_authority_check_authorization_sync error 11: Resource temporarily unavailable. Jul 18 11:49:43 test-VirtualBox brltty[409]: brltty: polkit_authority_check_authorization_sync error 11: Resource temporarily unavailable. Jul 18 11:49:43 test-VirtualBox brltty[409]: BrlAPI connection fd=27 accepted: local Jul 18 11:49:43 test-VirtualBox brltty[409]: brltty: BrlAPI connection fd=27 accepted: local Jul 18 11:49:43 test-VirtualBox brltty[409]: polkit_authority_check_authorization_sync error 11: Resource temporarily unavailable. Jul 18 11:49:43 test-VirtualBox brltty[409]: brltty: polkit_authority_check_authorization_sync error 11: Resource temporarily unavailable. Jul 18 11:49:43 test-VirtualBox brltty[409]: BrlAPI connection fd=27 accepted: local Jul 18 11:49:43 test-VirtualBox brltty[409]: brltty: BrlAPI connection fd=27 accepted: local Jul 18 11:49:43 test-VirtualBox brltty[409]: polkit_authority_check_authorization_sync error 11: Resource temporarily unavailable. Jul 18 11:49:43 test-VirtualBox brltty[409]: brltty: polkit_authority_check_authorization_sync error 11: Resource temporarily unavailable. Jul 18 11:49:43 test-VirtualBox brltty[409]: BrlAPI connection fd=27 accepted: local Jul 18 11:49:43 test-VirtualBox brltty[409]: brltty: BrlAPI connection fd=27 accepted: local Jul 18 11:49:43 test-VirtualBox brltty[409]: polkit_authority_check_authorization_sync error 11: Resource temporarily unavailable. Jul 18 11:49:43 test-VirtualBox brltty[409]: brltty: polkit_authority_check_authorization_sync error 11: Resource temporarily unavailable. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1782320 Title: Braille display inoperable in GUI since polkit-update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/brltty/+bug/1782320/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
