Tuesday, January 27, 2015
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
Microsoft Offers Power BI Business Intelligence Tools For Free
Apple Takes Top Spot in China's Smartphone Market
Dell M3800 Mobile Workstation Now Available With 4K Display
Twitter Gets Group Messaging and Video Recording
Microsoft Updates Xbox One Controller Firmware
Crucial Ballistix Elite DDR4 Memory Now Available
Samsung Advances Smart eMBMS Solution with Improved Video
Mitsubishi Chemical Files Patent Lawsuit Against Red Phosphors in China
Active Discussions
Rimage 2000i
Sound card for my Laptop
full screen wide screen
Hi
About the restriction problem of chapter quantity in DVD
Booktype utilities for LiteON and OEM DVD Recorders
downgrade a nero vision 5 project to nero vision 2
what is the minimum burning speed
 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
Slow PC Sales Jeep AMD's Revenue Down
Verbatim-MKM To Manufacture And Sell Archival-Grade M-Discs
Creative Unveils Sound Blaster X7 Limited Edition At CES
AMD at 2015 International CES
PlayStation Network Back Online
New Feature-stuffed Catalyst Omega Drives Released
Imagination Releases Raspberry Pi Rival
AMD Adds The Mobile "Carrizo" Family of APUs to Its Roadmap
New Scalable PowerVR Series7 GPUs Target Wearables, Servers
AMD Reveals Civilization: Beyond Earth Game Bundle, Overclocked Radeon R9 290X
PS4 Remote Play Now Available for Xperia Z3 Series
AMD's Radeon R9 290X Graphics Card Now Available For Just $300

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 .