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Category:   Device (Router/Bridge/Hub)  >   Cisco ASR Router Vendors:   Cisco
Cisco ASR 5000 Series Router IKEv2 Race Condition Lets Remote Users Cause the Target 'ipsecmgr' Service to Crash
SecurityTracker Alert ID:  1037413
SecurityTracker URL:  http://securitytracker.com/id/1037413
CVE Reference:   CVE-2016-9203   (Links to External Site)
Date:  Dec 9 2016
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 20.2.3, 20.2.3.65026
Description:   A vulnerability was reported in Cisco ASR 5000 Series Routers. A remote user can cause the target service to crash.

A remote user can exploit a race condition in the Internet Key Exchange Version 2 (IKEv2) function and cause the target 'ipsecmgr' service to crash and restart, causing any connections being negotiated to fail.

The vendor has assigned bug ID CSCvb38398 to this vulnerability.

Impact:   A remote user can cause the target 'ipsecmgr' service to crash and restart. Connections being negotiated will fail.
Solution:   The vendor has issued a fix.

The vendor advisory is available at:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161207-asr1

Vendor URL:  tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161207-asr1 (Links to External Site)
Cause:   State error

Message History:   None.


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