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Category:   Device (VoIP/Phone/FAX)  >   Cisco IP Phones Vendors:   Cisco
Cisco 8800 Series IP Phones SIP Packet Validation Flaw Lets Remote Users Cause the Target SIP Service to Restart
SecurityTracker Alert ID:  1038636
SecurityTracker URL:
CVE Reference:   CVE-2017-6656   (Links to External Site)
Date:  Jun 8 2017
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 8800 Series; 11.0(0.1)
Description:   A vulnerability was reported in Cisco 8800 Series IP Phones. A remote user can cause the target service to restart.

A remote user can send specially crafted SIP packets to trigger an input validation flaw and cause the target SIP process to restart. As a result, active phone calls are dropped.

The vendor has assigned bug ID CSCvc29353 to this vulnerability.

Impact:   A remote user can cause the active phone calls to drop.
Solution:   The vendor has issued a fix.

The vendor advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Input validation error

Message History:   None.

 Source Message Contents



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