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Category:   Device (Router/Bridge/Hub)  >   Cisco Catalyst Switch Vendors:   Cisco
Cisco IOS on Cisco Catalyst 6800 Series Switch VPLS Memory Management Flaw Lets Remote Users Cause the Target Line Card to Crash
SecurityTracker Alert ID:  1039453
SecurityTracker URL:  http://securitytracker.com/id/1039453
CVE Reference:   CVE-2017-12238   (Links to External Site)
Date:  Sep 27 2017
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 6800 Series
Description:   A vulnerability was reported in Cisco IOS on Cisco Catalyst 6800 Series Switches. A remote user can cause the target line card to crash.

A remote user on the local network can create a large number of Virtual Private LAN Service (VPLS) generated MAC entries in the MAC address table on the target device to trigger a memory management error and cause the target line card to crash.

C6800-16P10G or C6800-16P10G-XL type line cards are affected.

The vendor has assigned bug ID CSCva61927 to this vulnerability.

Impact:   A remote user can cause the target line card to crash.
Solution:   The vendor has issued a fix.

The vendor advisory is available at:

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

Vendor URL:  tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-vpls (Links to External Site)
Cause:   Resource error

Message History:   None.


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