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Category:   OS (Microsoft)  >   Windows Kernel Vendors:   Microsoft
Windows Kernel-Mode Drivers Object Memory Handling Bugs Let Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1034334
SecurityTracker URL:
CVE Reference:   CVE-2015-6171, CVE-2015-6173, CVE-2015-6174, CVE-2015-6175   (Links to External Site)
Date:  Dec 8 2015
Impact:   Root access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): Vista SP2, 2008 SP2, 7 SP1, 2008 R2 SP1, 8, 8.1, 2012, 2012 R2, RT, RT 8.1, 10; and prior service packs
Description:   Several vulnerabilities were reported in Windows Kernel-Mode Drivers. A local user can obtain elevated privileges on the target system.

A local user can run a specially crafted program to trigger an object handling memory error execute arbitrary commands on the target system with kernel-mode privileges.

Nils Sommer of bytegeist (via Google Project Zero) reported three of the vulnerabilities.

Impact:   A local user can obtain kernel-mode privileges on the target system.
Solution:   The vendor has issued a fix.

A patch matrix is available in the vendor's advisory.

The Microsoft advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Access control error

Message History:   None.

 Source Message Contents

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