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Category:   Device (VoIP/Phone/FAX)  >   Cisco IP Phones Vendors:   Cisco
Cisco 7800 and 8800 Series IP Phones Input Validation Flaw in SIP SDP Parser Lets Remote Users Deny Service
SecurityTracker Alert ID:  1040927
SecurityTracker URL:  http://securitytracker.com/id/1040927
CVE Reference:   CVE-2018-0325   (Links to External Site)
Date:  May 16 2018
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Cisco 7800 and 8800 Series IP Phones. A remote user can cause denial of service conditions on the target system.

A remote user can send a specially crafted Session Initiation Protocol (SIP) packet to trigger an input validation flaw in the SIP Session Description Protocol (SDP) parser and cause the SIP process to restart and all active phone calls on the target device to be dropped.

The vendor has assigned bug ID CSCvf40066 to this vulnerability.

Mozilla reported this vulnerability.

Impact:   A remote user can cause all active phone calls on the target device to be dropped.
Solution:   The vendor has issued a fix.

The vendor advisory is available at:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180516-ip-phone-dos

Vendor URL:  tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180516-ip-phone-dos (Links to External Site)
Cause:   Input validation error

Message History:   None.


 Source Message Contents

Subject:  https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180516-ip-phone-dos

 
 


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