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Category:   Device (Router/Bridge/Hub)  >   Cisco ASR Router Vendors:   Cisco
Cisco ASR 1000 Series Routers Lets Remote Authenticated Users Consume Excessive CPU Resources on the Target System
SecurityTracker Alert ID:  1037770
SecurityTracker URL:  http://securitytracker.com/id/1037770
CVE Reference:   CVE-2017-3820   (Links to External Site)
Date:  Feb 3 2017
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): ASR 1000; IOS XE 3.13.6S, 3.16.2S, 3.17.1S
Description:   A vulnerability was reported in Cisco ASR 1000 Series Routers. A remote authenticated user can consume excessive CPU resources on the target system.

A remote authenticated user can send specially crafted SNMP requests for MIBs using only Interface Index (ifIndex) values to consume excessive CPU resources on the target system.

The vendor has assigned bug ID CSCux68796 to this vulnerability.

Impact:   A remote authenticated user can consume excessive CPU resources on the target system.
Solution:   The vendor has issued a fix.

The vendor advisory is available at:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170201-asrsnmp

Vendor URL:  tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170201-asrsnmp (Links to External Site)
Cause:   Resource error

Message History:   None.


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