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Category:   Application (Instant Messaging/IRC/Chat)  >   Microsoft Lync Vendors:   Microsoft
Microsoft Lync Font File Processing Flaws Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1034331
SecurityTracker URL:  http://securitytracker.com/id/1034331
CVE Reference:   CVE-2015-6106, CVE-2015-6107, CVE-2015-6108   (Links to External Site)
Date:  Dec 8 2015
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2010, 2010 Attendee, 2013 SP1
Description:   Several vulnerabilities were reported in Microsoft Lync. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create a specially crafted font file that, when loaded by the target user, will execute arbitrary code on the target system. The code will run with the privileges of the target user.

Steven Vittitoe of Google Project Zero reported two of the vulnerabilities.

Impact:   A remote user can create a font file that, when loaded by the target user, will execute arbitrary code on the target user's 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/ms15-128

Vendor URL:  technet.microsoft.com/library/security/ms15-128 (Links to External Site)
Cause:   Access control error
Underlying OS:  Windows (Any)

Message History:   None.


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