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Category:   Device (Router/Bridge/Hub)  >   Cisco ASR Router Vendors:   Cisco
Cisco 5000 Series ASR Routers StarOS IKEv2 Processing Flaw Lets Remote Users Deny Service to VPN Tunnels
SecurityTracker Alert ID:  1040721
SecurityTracker URL:  http://securitytracker.com/id/1040721
CVE Reference:   CVE-2018-0273   (Links to External Site)
Date:  Apr 19 2018
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 5000 Series
Description:   A vulnerability was reported in StarOS on Cisco 5000 Series ASR Routers. A remote user can cause denial of service conditions on the target system.

A remote user can send specially crafted IKEv2 messages to the target system to trigger a flaw in the IPsec Manager and cause all active IPsec VPN tunnels to be terminated and prevent new tunnels from being established.

The vendor has assigned bug ID CSCve29605 to this vulnerability.

Impact:   A remote user can cause all active IPsec VPN tunnels to be terminated and prevent new tunnels from being established.
Solution:   The vendor has issued a fix.

The vendor advisory is available at:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-starosasr

Vendor URL:  tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-starosasr (Links to External Site)
Cause:   State error

Message History:   None.


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