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BETA test the new Secunia Personal Software Inspector!

The Secunia PSI detects installed software on your computer and
categorises it as either Insecure, End-of-Life, or Up-To-Date.
Effectively enabling you to focus your attention on software
installations where more secure versions are available from the
vendors.

Download the free PSI BETA from the Secunia website:
https://psi.secunia.com/

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TITLE:
AMD Catalyst Software Suite DSM Dynamic Driver Vista Kernel
Protection Bypass

SECUNIA ADVISORY ID:
SA26448

VERIFY ADVISORY:
http://secunia.com/advisories/26448/

CRITICAL:
Not critical

IMPACT:
Security Bypass

WHERE:
Local system

OPERATING SYSTEM:
Microsoft Windows Vista
http://secunia.com/product/13223/

SOFTWARE:
AMD Catalyst Software Suite 7.x
http://secunia.com/product/15311/

DESCRIPTION:
A weakness has been reported in AMD Catalyst Software Suite, which
can be exploited by malicious, local users to bypass certain security
restrictions.

The weakness is caused due to an input validation error within the
digitally signed ATI DSM Dynamic Driver (atdcm64a.sys). This can be
exploited to e.g. load arbitrary unsigned drivers on Windows Vista.

The weakness is reported in atdcm64a.sys version 3.0.502.0 included
in the AMD Catalyst Software Suite. Other versions may also be
affected.

SOLUTION:
Update to AMD Catalyst Software Suite version 7.8.
http://ati.amd.com/support/drivers/vista32/common-vista32.html

PROVIDED AND/OR DISCOVERED BY:
Joanna Rutkowska and Alexander Tereshkin, Invisible Things Lab

ORIGINAL ADVISORY:
Invisible Things Lab:
http://bluepillproject.org/stuff/IsGameOver.ppt

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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