The remote host is missing an update to openssl announced via advisory USN-1018-1.
Details follow:
Rob Hulswit discovered a race condition in the OpenSSL TLS server extension parsing code when used within a threaded server. A remote attacker could trigger this flaw to cause a denial of service or possibly execute arbitrary code with application privileges. (CVE-2010-3864)
Solution: The problem can be corrected by upgrading your system to the following package versions:
Ubuntu 8.04 LTS: libssl0.9.8 0.9.8g-4ubuntu3.12
Ubuntu 9.10: libssl0.9.8 0.9.8g-16ubuntu3.4
Ubuntu 10.04 LTS: libssl0.9.8 0.9.8k-7ubuntu8.4
Ubuntu 10.10: libssl0.9.8 0.9.8o-1ubuntu4.2
After a standard system update you need to reboot your computer to make all the necessary changes.