1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

NVIDIA 295.40 Closes High-Risk Security Flaw

NVIDIA

Published on 11 April 2012 10:13 AM EDT
Written by Michael Larabel in NVIDIA
16 Comments

NVIDIA's Linux team this morning announced the immediate release of the 295.40 Linux driver. There aren't many changes for this release compared to the recent 295.33 driver release, but it does address a high-risk security vulnerability.

The official changes for the NVIDIA 295.40 Linux stable driver release include closing a security vulnerability where attackers could reconfigure GPUs to gain access to arbitrary system memory, fixes a bug causing DisplayPort devices to occasionally fail after suspend-and-resume, a new "AllowNon3DVisionModes" X configuration option, and support for two new GPUs. The newly-supported GPUs is the GeForce GT 610 and GeForce GT 635M.

The high-risk security vulnerability that was recently discovered is described in CVE-2012-0946. This issue came down to an issue whereby arbitrary system memory could be accessed because the default file permissions on the NVIDIA GPU device nodes allows for read/write access to all users. NVIDIA classified this issue as high-risk since the read/write access is needed in order to leverage NVIDIA GPU hardware acceleration whether it be for OpenGL, OpenCL, or VDPAU. Fortunately, NVIDIA quickly identified the root cause of the vulnerability and released this new driver.

NVIDIA's also released a patch to its Linux kernel shim so that older drivers can be manually patched too. However, now with the new 295.40 driver, a new CUDA library is needed otherwise the CUDA debugger will fail against the patched library. Updated 295.40 drivers have also been released for Solaris and FreeBSD, which are also affected by the vulnerability.

The latest NVIDIA Linux drivers (and for Solaris/FreeBSD) can be fetched from the NVIDIA Unix driver portal page.

Benchmarks of the NVIDIA GeForce GTX 680 are currently being conducted this week at Phoronix, so expect some new NVIDIA Linux benchmarks by next week.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Articles & Reviews
  1. Linux Compiler Benchmarks Of LLVM Clang 3.5 vs. LLVM Clang 3.6-rc1
  2. Intel Broadwell HD Graphics 5500: Windows 8.1 vs. Linux
  3. Linux Benchmarks Of NVIDIA's Early 2015 GeForce Line-Up
  4. NVIDIA GeForce GTX 960: A Great $200 GPU For Linux Gamers
  5. Disk Encryption Tests On Fedora 21
  6. Xonotic 0.8 Performance With The Open-Source AMD/NVIDIA Gallium3D Drivers
Latest Linux News
  1. Ubuntu's Mir Gains Server-Side Platform Probing
  2. Broadwell Linux Ultrabook Running MUCH Cooler Than Haswell
  3. LZHAM 1.0 Lossless Data Compression Codec Released
  4. LibreOffice 4.4 Is Coming Soon With New Features
  5. Linux Users Upset By Chromium's Busted HiDPI Support
  6. BPF Backend Merged Into LLVM To Make Use Of New Kernel Functionality
  7. Dying Light Is Headed To Linux, SteamOS
  8. Wayland 1.6.1 & Weston 1.6.1 Released
  9. Mesa 10.4.3 Brings A Bunch Of Fixes For The Direct3D "Nine" Support
  10. Intel Has A Few More Graphics Changes For The Linux 3.20 Kernel
Most Viewed News This Week
  1. Windows 10 To Be A Free Upgrade: What Linux Users Need To Know
  2. Google Admin Encourages Trying Btrfs, Not ZFS On Linux
  3. TraceFS: The Newest Linux File-System
  4. My Initial Intel Broadwell Linux Experience With The ThinkPad X1 Carbon
  5. Mozilla's Servo Still On Track For 2015 Alpha Release
  6. Fedora 23 Likely To Pursue Wayland By Default
  7. Keith Packard Leaves Intel's Linux Graphics Work
  8. A Proposal To Go 64-bit Only With Fedora 23