[Pkg-utopia-maintainers] Bug#503532: D-Bus security issue

Simon McVittie smcv at debian.org
Sun Jan 4 17:01:18 UTC 2009


On Sat, 03 Jan 2009 at 17:58:47 +0000, Matthew Johnson wrote:
> In order to fix CVE-2008-4311 the default permissions on the system bus
> have been tightened up. This has revealed bugs in the configurations
> shipped with a number of services using the system bus which relied on
> the broken behaviour and will now break.

I've uploaded source and i386 binaries for a "release candidate" which has
deny-by-default and all of upstream's logging improvements:

  http://people.debian.org/~smcv/dbus-cve-2008-4311/

codehelp is compiling amd64 binaries which we'll upload to the same place when
they're ready. Please use this and try out your packages. If things are
denied, you'll get syslog spam like this:

Jan  4 16:56:34 carbon dbus-daemon: Rejected send message, 1 matched rules; type="method_call", sender=":1.4" (uid=0 pid=18344 comm="/usr/sbin/NetworkManager --pid-file /var/run/Netwo") interface="org.freedesktop.Hal.Device.KillSwitch" member="GetPower" error name="(unset)" requested_reply=0 destination="org.freedesktop.Hal" (uid=0 pid=18252 comm="/usr/sbin/hald "))

We're still looking into the fallout from this, so we're not uploading
to unstable right now. http://wiki.debian.org/DBusPermissions has the
gory details.

(1.2.8 in experimental has the deny-by-default and some (but not all) of
the logging improvements; I think you're better off with my version for
debugging.)

Regards,
    Simon
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