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A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a memory leak or a reload of an affected device that leads to a denial of service (DoS) condition. The vulnerability is due to incorrect processing of certain IKEv2 packets. An attacker could exploit this vulnerability by sending crafted IKEv2 packets to an affected device to be processed. A successful exploit could cause an affected device to continuously consume memory and eventually reload, resulting in a DoS condition. Cisco Bug IDs: CSCvf22394.

• http://www.securityfocus.com/bid/103566 vdb-entryx_refsource_BID
• https://ics-cert.us-cert.gov/advisories/ICSA-18-107-03 x_refsource_MISC
• https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04 x_refsource_MISC
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike x_refsource_CONFIRM
• http://www.securitytracker.com/id/1040595 vdb-entryx_refsource_SECTRACK
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0158 government-resource