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Category:   Application (Generic)  >   Microsoft Office Vendors:   Microsoft
Microsoft Office Multiple Flaws Let Remote Users Bypass ASLR and Execute Arbitrary Code
SecurityTracker Alert ID:  1032899
SecurityTracker URL:  http://securitytracker.com/id/1032899
CVE Reference:   CVE-2015-2375, CVE-2015-2376, CVE-2015-2377, CVE-2015-2378, CVE-2015-2379, CVE-2015-2380, CVE-2015-2415, CVE-2015-2424   (Links to External Site)
Date:  Jul 14 2015
Impact:   Execution of arbitrary code via network, Modification of system information, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2007 SP3, 2010 SP2; 2013 SP1, 2013 RT SP1; Office for Mac 2011; Excel Viewer 2007 SP3, Office Compatibility Pack SP3, Word Viewer
Description:   Multiple vulnerabilities were reported in Microsoft Office. A remote user can cause arbitrary code to be executed on the target user's system. A remote user can bypass security controls on the target system.

A remote user can create a specially crafted file that, when loaded by the target user, will execute arbitrary code on the target system [CVE-2015-2376, CVE-2015-2377, CVE-2015-2379, CVE-2015-2380, CVE-2015-2415, CVE-2015-2424]. The code will run with the privileges of the target user.

A remote user can create specially crafted content that, when loaded by the target user, will bypass the Address Space Layout Randomization (ASLR) protection features on the target user's system [CVE-2015-2375].

A remote user can place a specially crafted dynamic link library (DLL) file the target user's current working directory. Then, when the target user launches a certain application, the remote user's DLL file will be loaded and executed [CVE-2015-2378]. Microsoft Excel is affected.

3S Labs (via HP's Zero Day Initiative), M1x7e1(ShiXiaoLei) of SafeyeTeam, Steven Vittitoe of Google Project Zero, Jack Tang of Trend Micro, The Labs Team of iSIGHT Partners, and Edward Fjellskal of Telenor CERT reported these vulnerabilities.

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

A remote user can bypass security controls 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:

https://technet.microsoft.com/library/security/ms15-070

Vendor URL:  technet.microsoft.com/library/security/ms15-070 (Links to External Site)
Cause:   Access control error
Underlying OS:  UNIX (macOS/OS X), Windows (Any)

Message History:   None.


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