The remote host is missing an update to the system as announced in the referenced advisory.
The following package is affected: exim
CVE-2010-4345 Exim 4.72 and earlier allows local users to gain privileges by leveraging the ability of the exim user account to specify an alternate configuration file with a directive that contains arbitrary commands, as demonstrated by the spool_directory directive.
Solution: Update your system with the appropriate patches or software upgrades.