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Category:   Device (Router/Bridge/Hub)  >   Cisco Catalyst Switch Vendors:   Cisco
Cisco IOS XE on Cisco Catalyst Switch WLC Association Request Processing Input Validation Flaw Lets Remote Users Cause the Target System to Restart
SecurityTracker Alert ID:  1039458
SecurityTracker URL:  http://securitytracker.com/id/1039458
CVE Reference:   CVE-2017-12222   (Links to External Site)
Date:  Sep 27 2017
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 3650 and 3850 switches; IOS XE 16.1 through 16.3.3
Description:   A vulnerability was reported in Cisco IOS XE on Cisco Catalyst Switch. A remote user can cause the target system to restart.

A remote user on the local network can submit a specially crafted association request to trigger an input validation flaw in the target wireless controller manager and cause the switch to restart.

Systems configured as wireless LAN controllers (WLC) are affected.

The vendor has assigned bug ID CSCvd45069 to this vulnerability.

Impact:   A remote user can cause the target system to restart.
Solution:   The vendor has issued a fix.

The vendor advisory is available at:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-ios-xe

Vendor URL:  tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-ios-xe (Links to External Site)
Cause:   Input validation error

Message History:   None.


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