The remote host is missing an update to the system as announced in the referenced advisory.
The following package is affected: racoon
CVE-2004-0155 The KAME IKE Daemon Racoon, when authenticating a peer during Phase 1, validates the X.509 certificate but does not verify the RSA signature authentication, which allows remote attackers to establish unauthorized IP connections or conduct man-in-the-middle attacks using a valid, trusted X.509 certificate.
Solution: Update your system with the appropriate patches or software upgrades.