Hello Sebastien, or anyone else affected, Accepted apparmor into xenial-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/apparmor/2.10.95-0ubuntu2.3 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 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 to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision. Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance! ** Changed in: apparmor (Ubuntu Xenial) Status: Triaged => Fix Committed ** Tags removed: verification-done ** Tags added: verification-needed -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apparmor in Ubuntu. https://bugs.launchpad.net/bugs/1580463 Title: Snap blocks access to system input methods (ibus, fcitx, ...) Status in apparmor package in Ubuntu: Fix Released Status in im-config package in Ubuntu: Fix Released Status in snapd package in Ubuntu: Fix Released Status in apparmor source package in Xenial: Fix Committed Status in im-config source package in Xenial: In Progress Status in snapd source package in Xenial: Fix Released Status in apparmor source package in Yakkety: Fix Released Status in im-config source package in Yakkety: Fix Released Status in snapd source package in Yakkety: Fix Released Bug description: = SRU im-config = [Impact] ibus-daemon by default uses a unix socket name of /tmp/dbus-... that is indistinguishable from dbus-daemon abstract sockets. While dbus-daemon has AppArmor mediation, ibus-daemon does not so it is important that its abstract socket not be confused with dbus-daemon's. By modifying ibus-daemon's start arguments to use "--address 'unix:tmpdir=/tmp/ibus'" AppArmor can continue mediating DBus abstract sockets like normal and also mediate access to the ibus-daemon-specific abstract socket via unix rules. This also tidies up the abstract socket paths so that it is clear which are for ibus-daemon, which for dbus-daemon, etc. The upload simply adjusts 21_ibus.rc to start ibus-daemon with "-- address 'unix:tmpdir=/tmp/ibus'" and adds a comment. No compiled code changes are required. [Test Case] 1. start a unity session before updating to the package in -proposed 2. $ grep IBUS_ADDRESS ~/.config/ibus/bus/*-unix-0 IBUS_ADDRESS=unix:abstract=/tmp/dbus-Vyx8fGFA,guid=28e8e7e89f902c8d4e9d77c5557add76 3. $ lsof -p $(pidof ibus-daemon) | grep '/dbus' ibus-daem 2973 jamie 8u unix 0x0000000000000000 0t0 29606 @/tmp/dbus-oxKYpN30 type=STREAM 4. update the package in -proposed and perform '2' and '3'. The IBUS_ADDRESSES should be the same as before 5. logout of unity, then log back in 6. $ grep IBUS_ADDRESS ~/.config/ibus/bus/*-unix-0 IBUS_ADDRESS=unix:abstract=/tmp/ibus/dbus-SpxOl8Fc,guid=06d4bbeb07614c6dffbf221c57473f4e (notice '/tmp/ibus/' in the path) 7. $ lsof -p $(pidof ibus-daemon) | grep '/dbus' ibus-daem 3471 jamie 8u unix 0x0000000000000000 0t0 26107 @/tmp/ibus/dbus-SpxOl8Fc type=STREAM ... (notice '@/tmp/ibus/' in the path) In addition to the above, you can test for regressions by opening 'System Settings' under the 'gear' icon in the panel and selecting 'Text Entry'. From there, add an input source on the right, make sure 'Show current input source in the menu bar' is checked, then use the input source panel indicator to change input sources. [Regression Potential] The regression potential is considered low because there are no compiled code changes and because the changes only occur after ibus- daemon is restarted, which is upon session start, not package upgrade. When it is restarted, the files in ~/.config/ibus/bus/*-unix-0 are updated accordingly for other applications to pick up. This change intentionally requires a change to the unity7 snapd interface, which is in progress. Currently the change should not regress snapdsbehavior due to other issues surrounding using ibus unrelated to security policy. = SRU apparmor = [Impact] The upload that adjusts ibus-daemon to start with "--address 'unix:tmpdir=/tmp/ibus'" causes the ibus AppArmor abstraction to no longer be sufficient due to the lack of a rule for the new socket path. This upload adds such a rule. [Test Case] 1. Start a unity session after updating to the im-config package in -proposed but before the apparmor package in -proposed 2. Use the ibus client program to list the available engines $ ibus list-engine language: Spanish; Castilian xkb:latam::spa - Spanish (Latin American) xkb:es::spa - Spanish language: Slovak xkb:sk:qwerty:slo - Slovak (qwerty) xkb:sk::slo - Slovak ... 3. Create an AppArmor profile file, called ibus, with the following contents: #include <tunables/global> profile ibus { #include <abstractions/base> #include <abstractions/dbus-session-strict> #include <abstractions/ibus> /usr/bin/ibus mr, } 4. Load the profile $ sudo apparmor_parser -qr ibus 5. Rerun the ibus client program under confinement to see that it fails $ aa-exec -p ibus -- ibus list-engine Can't connect to IBus. 6. Note the AppArmor denial in the syslog audit: type=1400 audit(1472252079.589:57): apparmor="DENIED" operation="connect" profile="ibus" pid=5364 comm="ibus" family="unix" sock_type="stream" protocol=0 requested_mask="send receive connect" denied_mask="send connect" addr=none peer_addr="@/tmp/ibus/dbus- kxnhAsmv" peer="unconfined" 7. Update to the apparmor package in -proposed 8. Rerun the ibus client program under confinement to see that it works $ aa-exec -p ibus -- ibus list-engine language: Spanish; Castilian xkb:latam::spa - Spanish (Latin American) xkb:es::spa - Spanish language: Slovak xkb:sk:qwerty:slo - Slovak (qwerty) xkb:sk::slo - Slovak ... [Regression Potential] The regression potential is considered low because there are no compiled code changes and because the changes only add additional rules to the apparmor ibus abstraction. = Original description = Currently snaps can't access ibus/fcitx from the system, do we need a interface for input methods there? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/1580463/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
