The remote host is missing an update to ipsec-tools announced via advisory USN-785-1.

The problem can be corrected by upgrading your system to the following package versions: Ubuntu 6.06 LTS: racoon 1:0.6.5-4ubuntu1.3 Ubuntu 8.04 LTS: racoon 1:0.6.7-1.1ubuntu1.2 Ubuntu 8.10: racoon 1:0.7-2.1ubuntu1.8.10.1 Ubuntu 9.04: racoon 1:0.7-2.1ubuntu1.9.04.1 In general, a standard system upgrade is sufficient to effect the necessary changes. https://secure1.securityspace.com/smysecure/catid.html?in=USN-785-1

It was discovered that ipsec-tools did not properly handle certain fragmented packets. A remote attacker could send specially crafted packets to the server and cause a denial of service. (CVE-2009-1574) It was discovered that ipsec-tools did not properly handle memory usage when verifying certificate signatures or processing nat-traversal keep-alive messages. A remote attacker could send specially crafted packets to the server and exhaust available memory, leading to a denial of service. (CVE-2009-1632)