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Message #33194
[Bug 1362469] Re: AppArmor unrequested reply protection generates unallowable denials
Whats the status of this? We might have a serious issue that needs
forwarding dbus to 1.8, however we haven't tracked it down to a single
commit that we could cherry pick yet.
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https://bugs.launchpad.net/bugs/1362469
Title:
AppArmor unrequested reply protection generates unallowable denials
Status in “dbus” package in Ubuntu:
Triaged
Bug description:
Starting with utopic's dbus 1.8.6-1ubuntu1 package, the new AppArmor
unrequested reply protections can generate some denials that can't
easily be allowed in policy. For example, when running a confined
pasaffe, you see these denials when starting and closing pasaffe:
apparmor="DENIED" operation="dbus_error" bus="session"
error_name="org.freedesktop.DBus.Error.UnknownMethod" mask="send"
name=":1.22" pid=4993 profile="/usr/bin/pasaffe" peer_pid=3624
peer_profile="unconfined"
It isn't obvious how to construct an AppArmor D-Bus rule to allow that
operation. A bare "dbus," rule allows it but that's not acceptable for
profiles implementing tight D-Bus confinement.
The code that implements unrequested reply protections should be
reviewed for issues and, if everything looks good there,
investigations into how to allow the operation that triggers the above
denial should occur.
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References