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Category:   Application (Instant Messaging/IRC/Chat)  >   Microsoft Skype for Business Vendors:   Microsoft
Microsoft Skype for Business Emoji Processing Flaw Lets Remote Users Cause the Target Service to Crash
SecurityTracker Alert ID:  1042125
SecurityTracker URL:  http://securitytracker.com/id/1042125
CVE Reference:   CVE-2018-8546   (Links to External Site)
Date:  Nov 13 2018
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2013 SP1, 2016; Microsoft Office 2019; Office 365 ProPlus
Description:   A vulnerability was reported in Microsoft Skype for Business. A remote user can cause the target service to crash.

A remote user can send a specially crafted message containing certain emoji characters to the target user to cause the target user's Skype for Business to crash.

Sabine Degen of SEC Consult Vulnerability Lab reported this vulnerability.

Impact:   A remote user can cause the target service to crash.
Solution:   The vendor has issued a fix.

The Microsoft advisories are available at:

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8546

Vendor URL:  portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8546 (Links to External Site)
Cause:   State error
Underlying OS:  Windows (2012), Windows (2016)

Message History:   None.


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