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Category:   OS (Microsoft)  >   Microsoft GDI+ Vendors:   Microsoft
Microsoft Graphics Component Bugs Lets Local Users Bypass ASLR Protection and Gain Elevated Privileges
SecurityTracker Alert ID:  1036101
SecurityTracker URL:  http://securitytracker.com/id/1036101
CVE Reference:   CVE-2016-3216, CVE-2016-3219, CVE-2016-3220   (Links to External Site)
Date:  Jun 14 2016
Impact:   Disclosure of system information, Root access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): Vista SP2, 2008 SP2, 7 SP1, 2008 R2 SP1, 8.1, 2012, 2012 R2, RT 8.1, 10, 10 Version 1511; and prior service packs
Description:   Several vulnerabilities were reported in Microsoft GDI+. A local user can bypass security restrictions. A local user can gain system privileges on the target system.

The Windows Graphics Component (GDI32.dll) does not properly handle memory objects [CVE-2016-3216]. A local user can obtain potentially sensitive information to bypass Address Space Layout Randomization (ASLR) protections.

A local user can run a specially crafted application to trigger a memory object handling error in 'Win32k.sys' and gain kernel-level privileges on the target system [CVE-2016-3219].

A local user can run a specially crafted application to trigger a memory object handling error in Adobe Type Manager Font Driver (ATMFD.dll) to gain elevated privileges on the target system [CVE-2016-3220].

James Forshaw of Google Project Zero and Mateusz Jurczyk of Google Project Zero reported these vulnerabilities.

Impact:   A local user can bypass security controls on the target system.

A local user can obtain system privileges on the target system.

Solution:   The vendor has issued a fix.

The Microsoft advisory is available at:

https://technet.microsoft.com/library/security/ms16-074

Vendor URL:  technet.microsoft.com/library/security/ms16-074 (Links to External Site)
Cause:   Access control error

Message History:   None.


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