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Category:   Device (Router/Bridge/Hub)  >   Cisco IOS Vendors:   Cisco
Cisco IOS XE NAT/MPLS Processing Flaw Lets Remote Users Cause the Target System to Reload
SecurityTracker Alert ID:  1033645
SecurityTracker URL:  http://securitytracker.com/id/1033645
CVE Reference:   CVE-2015-6282   (Links to External Site)
Date:  Sep 23 2015
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Cisco IOS XE. A remote user can cause the target system to reload.

A remote user can send specially crafted IPv4 packets that require Network Address Translation (NAT) and Multiprotocol Label Switching (MPLS) processing through the target device to cause the device to reload.

Inbound interfaces configured with the 'ip nat inside' command are affected when the destination outbound interface is configured with the 'ip nat outside' and 'mpls ip' commands are affected.

Cisco ASR 1000 Series, Cisco ISR 4300 Series, Cisco ISR 4400 Series, and Cisco Cloud Services 1000v Series Routers are affected.

The vendor has assigned bug ID CSCut96933 to this vulnerability.

Impact:   A remote user can cause the target device to reload.
Solution:   Cisco has issued a fix.

A patch matrix is available in the vendor's advisory.

The Cisco advisory is available at:

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150923-iosxe

Vendor URL:  tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150923-iosxe (Links to External Site)
Cause:   State error

Message History:   None.


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