Wednesday, March 29, 2017
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
Intel Details 10, 22nm Processes, Proposes Transistor-density Metric
U.S. House Voted Against Broadband Privacy Rules
SK Hynix Offers More Than $9 billion for Toshiba Chip Unit: report
Toshiba's Nuclear Unit Westinghouse Files for Bankruptcy
New Intel Xeon Processor E3-1200 v6 Product Family Targets Pros
Google Assistant Is Coming To More Connected Devices
Self-assembly Technique Could Solve Miniaturization Chip Making Issues
Prepare For Battle GeForce GTX Bundle Includes For Honor or Tom Clancy's Ghost Recon Wildlands Games
Active Discussions
Which of these DVD media are the best, most durable?
How to back up a PS2 DL game
Copy a protected DVD?
roxio issues with xp pro
Help make DVDInfoPro better with dvdinfomantis!!!
menu making
Optiarc AD-7260S review
cdrw trouble
 Home > News > Graphics Cards > AMD rel...
Last 7 Days News : SU MO TU WE TH FR SA All News

Tuesday, August 14, 2007
AMD releases ATI Vista driver patch


AMD has released a patch for its ATI Catalyst drivers to remove the possibility of them being used as an attack vector to circumvent the improved security defenses of Vista.

The ATI driver flaw was highlighted by Joanna Rutkowska, security researcher and founder of Invisible Things Lab, at the Black Hat conference early this month as an illustration of why the Vista kernel protection doesn?t work.

The flaw was later exploited by a proof-of-concept-tool, Purple Pill, released by security researcher Alex Ionescu, that patches the Vista kernel to turn off certain checks for signed drivers, which means any malicious rootkit author could piggyback on ATI?s legitimately signed driver to tamper with the Vista kernel.

ATI has confirmed the bug, which affects the AMD Catalyst software package and strongly urged users to download the patch, Catalyst version 7.8.

While the bug has been patched, it doesn?t mean that Vista is really secure OS. Considering that there are several hundreds of third-party drivers that are poorly written, the same problem could occur again and again.

In addition, an attacker could make their own malicious driver, get the driver certified to use for an attack.

And because Microsoft has no way of knowing in advance whether a driver has a bug, or has been made explicitly for the purpose of corrupting the Vista kernel, the company needs to come up with a plan on how it can protect its Vista kernel better.

From VISTA.BLORGE



Previous
Next
Nvidia MCP73 'to debut 25 September'        All News        Windows XP over Vista for 2008 Summer Olympic Games
Nvidia MCP73 'to debut 25 September'     Graphics Cards News      Apple picks AMD Radeon HD GPUs for iMac

Source Link Get RSS feed Easy Print E-Mail this Message

Related News
AMD Ryzen 5 CPUs For Desktops Launching April 11 Worldwide
AMD Comments On Thread Scheduling, Temperature Reporting Issues On Ryzen CPUs
Imagination Details New iPhone's Graphics - Meet The Furian 8XT Architecture
AMD Previews "Naples" Server Processor, Coming in Q2 2017
PS Vue Now Lets You Watch Multiple Channels at Once
AMD Ryzen 7 Desktop Processors Launch, Adding Pressure To Intel
GDC 2017: AMD Unveils Vega Retail Name, Partners With Bethesda And Talks About Asynchronous Reprojection
Sony Says PLAYSTATION VR Sells Through 915,000 Units
AMD Launches Ryzen PC Chips, With A Price And Performance That Could Threaten Intel
Nvidia, and AMD Increase GPU Attach Rates While Total GPU Shipments Remain Flat
ISSCC: Intel Presents 2.5D FPGA, AMD Details Upcoming Zen x86 Core
AMD Says New Ryzen CPU Is Coming Early March, Followed by the Vega GPU

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2017 - All rights reserved -
Privacy policy - Contact Us .