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Category:   OS (Microsoft)  >   Windows Kernel Vendors:   Microsoft
Microsoft Windows Kernel Bugs Let Remote Users Execute Arbitrary Code and Local Users Bypass ASLR Restricitions and Gain Elevated Privileges
SecurityTracker Alert ID:  1034114
SecurityTracker URL:  http://securitytracker.com/id/1034114
CVE Reference:   CVE-2015-6100, CVE-2015-6101, CVE-2015-6102, CVE-2015-6103, CVE-2015-6104, CVE-2015-6109, CVE-2015-6113   (Links to External Site)
Date:  Nov 10 2015
Impact:   Disclosure of system information, Disclosure of user information, Execution of arbitrary code via network, User access via local system, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   Multiple vulnerabilities were reported in the Windows Kernel. A remote user can cause arbitrary code to be executed on the target user's system. A local user can obtain potentially sensitive information. A local user can obtain elevated privileges on the target system. A local user can bypass security restrictions.

A local user can obtain potentially sensitive information from the kernel and bypass address space layout randomization (ASLR) controls on the target system [CVE-2015-6102, CVE-2015-6109].

A local user can run a specially crafted program to execute arbitrary code on the target system with kernel-level privileges [CVE-2015-6100, CVE-2015-6101].

A remote or local user can create a specially crafted font file that, when loaded by the target user, will trigger an error in the Adobe Type Manager Library and execute arbitrary code on the target user's system [CVE-2015-6103, CVE-2015-6104].

A local user can run a specially crafted program at a low integrity level to exploit a permission validation flaw and modify files outside of the low integrity level restrictions [CVE-2015-6113].

Nils Sommer of bytegeist (via Google Project Zero), Mateusz Jurczyk of Google Project Zero, and James Forshaw of Google Project Zero reported these vulnerabilities.

Impact:   A remote user can create content that, when loaded by the target user, will execute arbitrary code on the target user's system.

A local user can obtain potentially sensitive information on the target system.

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

A local user can bypass address space layout randomization controls on the target system.

Solution:   The vendor has issued a fix.

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

A restart is required.

The Microsoft advisory is available at:

https://technet.microsoft.com/library/security/ms15-115

Vendor URL:  technet.microsoft.com/library/security/ms15-115 (Links to External Site)
Cause:   Access control error

Message History:   None.


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