The remote host is missing an update as announced via advisory SSA:2005-286-01.

https://secure1.securityspace.com/smysecure/catid.html?in=SSA:2005-286-01

New OpenSSL packages are available for Slackware 8.1, 9.0, 9.1, 10.0, 10.1, 10.2, and -current to fix a security issue. Under certain conditions, an attacker acting as a 'man in the middle' may force a client and server to fall back to the less-secure SSL 2.0 protocol. More details about this issue may be found here: http://www.openssl.org/news/secadv_20051011.txt