The remote host is missing an update to bacula announced via advisory DSA 2558-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%202558-1

It was discovered that bacula, a network backup service, does not properly enforce console ACLs. This could allow information about resources to be dumped by an otherwise-restricted client. For the stable distribution (squeeze), this problem has been fixed in version 5.0.2-2.2+squeeze1. For the testing distribution (wheezy), this problem will be fixed soon. For the unstable distribution (sid), this problem has been fixed in version 5.2.6+dfsg-4. We recommend that you upgrade your bacula packages.