The remote host is missing an update to open-iscsi announced via advisory DSA 1314-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%201314-1

Several local and remote vulnerabilities have been discovered in open-iscsi, a transport-independent iSCSI implementation. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2007-3099 Olaf Kirch discovered that due to a programming error access to the management interface socket was insufficiently protected, which allows denial of service. CVE-2007-3100 Olaf Kirch discovered that access to a semaphore used in the logging code was insufficiently protected, allowing denial of service. The oldstable distribution (sarge) doesn't include open-iscsi. For the stable distribution (etch) these problems have been fixed in version 2.0.730-1etch1. For the unstable distribution (sid) these problems have been fixed in version 2.0.865-1. We recommend that you upgrade your open-iscsi packages.