oss-security - CVE Request -- dbus -- Local DoS via messages with non-native byte order

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Date: Sun, 12 Jun 2011 15:01:40 +0200
From: Jan Lieskovsky <jlieskov@...hat.com>
To: "Steven M. Christey" <coley@...us.mitre.org>
CC: oss-security@...ts.openwall.com, Simon McVittie <smcv@...ian.org>,
        629938@...s.debian.org
Subject: CVE Request -- dbus -- Local DoS via messages with non-native byte
 order

Hello, Josh, Steve, vendors,

   It was found that D-BUS message bus service / messaging facility did
not update the byte-order flag of the message properly by swapping the
byte order of incoming messages into their native endiannes. A local,
authenticated user could use this flaw to send a specially-crafted
message to a system service (like Avahi or NetworkManager), using the
system bus, potentially leading to disconnect of such a service from
system bus (denial of service).

References:
[1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629938
[2] https://bugs.freedesktop.org/show_bug.cgi?id=38120
[3] https://bugzilla.redhat.com/show_bug.cgi?id=712676

Upstream patches:
[4] 
http://cgit.freedesktop.org/dbus/dbus/commit/?h=dbus-1.2&id=6519a1f77c61d753d4c97efd6e15630eb275336e
     (in upstream v1.2.28 version)

[5] 
http://cgit.freedesktop.org/dbus/dbus/commit/?h=dbus-1.4&id=c3223ba6c401ba81df1305851312a47c485e6cd7
     (in upstream v1.4.12 version)

Could you allocate a CVE id for this?

Thank you && Regards, Jan.
--
Jan iankko Lieskovsky / Red Hat Security Response Team

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