The remote host is missing an update to spip announced via advisory DSA 2349-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%202349-1

Two vulnerabilities have been found in SPIP, a website engine for publishing, which allow privilege escalation to site administrator privileges and cross-site scripting. The oldstable distribution (lenny) doesn't include spip. For the stable distribution (squeeze), this problem has been fixed in version 2.1.1-3squeeze2. For the unstable distribution (sid), this problem has been fixed in version 2.1.12-1. We recommend that you upgrade your spip packages.