The remote host is missing an update to openssl announced via advisory DSA 1763-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%201763-1

It was discovered that insufficient length validations in the ASN.1 handling of the OpenSSL crypto library may lead to denial of service when processing a manipulated certificate. For the old stable distribution (etch), this problem has been fixed in version 0.9.8c-4etch5 of the openssl package and in version 0.9.7k-3.1etch3 of the openssl097 package. For the stable distribution (lenny), this problem has been fixed in version 0.9.8g-15+lenny1. For the unstable distribution (sid), this problem has been fixed in version 0.9.8g-16. We recommend that you upgrade your openssl packages.