The remote host is missing an update to vbox3 announced via advisory DSA 418-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%20418-1

A bug was discovered in vbox3, a voice response system for isdn4linux, whereby root privileges were not properly relinquished before executing a user-supplied tcl script. By exploiting this vulnerability, a local user could gain root privileges. For the current stable distribution (woody) this problem has been fixed in version 0.1.7.1. For the unstable distribution, this problem has been fixed in version 0.1.8. We recommend that you update your vbox3 package.