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

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Date: Mon, 13 Jun 2011 15:25:46 -0400 (EDT)
From: Josh Bressers <bressers@...hat.com>
To: oss-security@...ts.openwall.com
Cc: Simon McVittie <smcv@...ian.org>, 629938@...s.debian.org,
        "Steven M. Christey" <coley@...us.mitre.org>
Subject: Re: CVE Request -- dbus -- Local DoS via messages
 with non-native byte order



----- Original Message -----
> 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)
> 

Please use CVE-2011-2200.

Thanks.

-- 
    JB

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