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Category:   Device (Router/Bridge/Hub)  >   Cisco IOS Vendors:   Cisco
Cisco IOS H.323 NAT Processing Flaw Lets Remote Users Cause the Target System to Reload
SecurityTracker Alert ID:  1039449
SecurityTracker URL:  http://securitytracker.com/id/1039449
CVE Reference:   CVE-2017-12231   (Links to External Site)
Date:  Sep 27 2017
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

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

A remote user can send specially crafted H.323 packet that use the Registration, Admission, and Status (RAS) protocol through the target device via IPv4 to trigger a network address translation (NAT) error and cause the target device to crash and reload.

The vendor has assigned bug ID CSCvc57217 to this vulnerability.

Jason Fernandez reported this vulnerability.

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

The vendor advisory is available at:

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

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

Message History:   None.


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