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Date: Thu, 18 Feb 2010 09:09:15 +0800
From: Eugene Teo <>
CC: Marcus Meissner <>
Subject: Re: CVE request: kernel information leak via userspace
 USB interface

Hi Marcus,

On 02/17/2010 06:29 PM, Marcus Meissner wrote:
> While programming a USB device using libusb I found that a usb read from
> the device returned data it should not.
> Access to USB userspace devices either requires root access or desktop user access
> via udev/hal ACLs on non-mass-storage Digital Cameras or Media Players. (So the
> desktop user needs to plugin such a ACL getting device before being able
> to read the memory).

To abuse this, you will need physical access to plug in a USB device, so 
I do not think this should be regarded as a security issue.

Thanks, Eugene
Eugene Teo / Red Hat Security Response Team

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