Buffer overflows and DoS during IKE packet parsing.
vulners.com/securityvulns/securityvulns:doc:3347
vulners.com/securityvulns/securityvulns:doc:3464
vulners.com/securityvulns/securityvulns:doc:3505
vulners.com/securityvulns/securityvulns:doc:3508