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Category:   Application (Generic)  >   NVIDIA Driver Vendors:   NVIDIA Corporation
NVIDIA CUDA Driver Toolkit Discloses Information to Local Users
SecurityTracker Alert ID:  1024962
SecurityTracker URL:  http://securitytracker.com/id/1024962
CVE Reference:   CVE-2011-0636   (Links to External Site)
Updated:  Jan 27 2011
Original Entry Date:  Jan 14 2011
Impact:   Disclosure of system information, Disclosure of user information

Version(s): NVIDIA CUDA Toolkit 3.2
Description:   A vulnerability was reported in NVIDIA CUDA Driver Toolkit. A local user can obtain potentially sensitive information.

The driver does not properly initialize memory. A local user can read portions of kernel memory.

Alex Granovsky of Firefly Project reported this vulnerability.

Impact:   A local user can obtain potentially sensitive information from kernel memory.
Solution:   No solution was available at the time of this entry.
Vendor URL:  developer.nvidia.com/object/cuda_download.html (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any)

Message History:   None.


 Source Message Contents

Subject:  CUDA drivers/Linux security hole

Hello,

We have recently found serious security breach in CUDA Linux drivers:

http://classic.chem.msu.su/cgi-bin/ceilidh.exe/gran/gamess/forum/?C35e9ea936bHW-7675-1380-00.htm

http://classic.chem.msu.su/cgi-bin/ceilidh.exe/gran/gamess/forum/?C35e9ea936bHW-7676-1022+00.htm

In brief, driver maps pinned memory to user space but does not initialize it to zero. As an example, our simplest "proof of concept" program was able to read large fragments of files being written or read by other users.  

Kind regards,
Alex Granovsky

Firefly Project
http://classic.chem.msu.su/gran/firefly/
 
 


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