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Date: Mon, 4 May 2015 01:43:48 -0400 (EDT)
From: cve-assign@...re.org
To: oss-security@...ts.openwall.com
Cc: cve-assign@...re.org
Subject: Re: USBCreator D-Bus service
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> http://openwall.com/lists/oss-security/2015/04/22/12
> On my Ubuntu VM, I have a D-Bus service listening on
> com.ubuntu.USBCreator. As far as I can tell, this is installed by
> default.
> It looks like the author intended for all the methods to call
> check_polkit, but KVMTest doesn't.
> the following appears to work
> on my machine:
> dbus-send --print-reply --system --dest=com.ubuntu.USBCreator
> /com/ubuntu/USBCreator com.ubuntu.USBCreator.KVMTest ...
> dict:string:string:DISPLAY,"foo",XAUTHORITY,"foo",LD_PRELOAD,"/tmp/test.so"
As far as we know, this affects only Ubuntu, and although people from
Ubuntu discussed the announcement here, apparently nobody from Ubuntu
sent a message here stating that they concluded it was a single
vulnerability that didn't yet have a CVE ID. We found that that's the
state by reading:
http://bazaar.launchpad.net/~usb-creator-hackers/usb-creator/trunk/revision/470
Use CVE-2015-3643.
> http://openwall.com/lists/oss-security/2015/04/24/5
As far as we can tell, this followup post doesn't announce an
additional vulnerability. Apparently, the goal of that post was to
describe how to check for some of the exploitation preconditions, and
suggest the possibility of bypassing a precondition.
- --
CVE assignment team, MITRE CVE Numbering Authority
M/S M300
202 Burlington Road, Bedford, MA 01730 USA
[ PGP key available through http://cve.mitre.org/cve/request_id.html ]
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