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Category:   Device (Router/Bridge/Hub)  >   Cisco IOS Vendors:   Cisco
Cisco IOS/IOS XE IKE Processing Flaws Let Remote Users Cause the Target System to Reload
SecurityTracker Alert ID:  1040595
SecurityTracker URL:  http://securitytracker.com/id/1040595
CVE Reference:   CVE-2018-0158, CVE-2018-0159   (Links to External Site)
Date:  Mar 28 2018
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   Two vulnerabilities were reported in Cisco IOS and IOS XE. A remote user can cause the target system to reload.

A remote user can send specially crafted Internet Key Exchange Version 1 (IKEv1) packets to the target system during an IKE negotiation to trigger an input validation flaw and cause the target system to reload [CVE-2018-0159].

A remote user can send specially crafted IKEv2 packets to the target system to trigger a memory leak and cause the target system to reload [CVE-2018-0158].

The vendor has assigned bug IDs CSCuj73916 and CSCvf22394 to these vulnerabilities.

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

The vendor advisories are available at:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike-dos
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike

Vendor URL:  tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike-dos (Links to External Site)
Cause:   Access control error, Input validation error

Message History:   None.


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