Saturday, August 29, 2015
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
Alienware Brings Liquid Cooling and Dynamic Overclocking to Holiday Lineup
Razer Launches Wildcat Xbox One Controller And Upgraded Nabu Smartband
Workstation Market Shippments Rebound In Q2
Google Will Help You Find Your Plumber
IFA 2015: What We Know So Far
Acer Liquid Z410 And Liquid Jade Z Phones Released
Huawei Honor Phones Coming To Europe
AMD Radeon R9 370X Graphics Card Launched In Asia
Active Discussions
How to back up a PS2 DL game
Copy a protected DVD?
roxio issues with xp pro
How to burn a backup copy of The Frozen Throne
Help make DVDInfoPro better with dvdinfomantis!!!
Copied dvd's say blank in computer only
menu making
Optiarc AD-7260S review
 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 Radeon R9 370X Graphics Card Launched In Asia
AMD Radeon R9 Nano Graphics Card Shipping September 10th
AMD Showcases Graphics, Energy Efficient Computing and Die-Stacking Technologies At Hot Chips
GPU shipments Dropped During The Quarter, Both AMD And Nvidia Slipped
This Tool May Unlock The Disabled Cores Of Your GPU
Sony's Midrange Xperia C5 Ultra and M5 Smartphones Come With Strong Cameras
Android Lollipop Rolls For the Xperia Z3 and Xperia Z2 Series
Sony Mobile and ZMP to Develop Enterprise Solutions that Utilize Autonomous Unmanned Aerial Vehicles
New AMD Godavari A8-7670K Desktop Processors Released
AMD Reports Weak Second Quarter Results
AMD's Partners Bring The Fury To The Market
New Catalyst 15.7 Driver Brings Performance Optimizations

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2015 - All rights reserved -
Privacy policy - Contact Us .