The remote host is missing an update to mysql-dfsg announced via advisory DSA 1079-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%201079-1

Several vulnerabilities have been discovered in MySQL, a popular SQL database. The Common Vulnerabilities and Exposures Project identifies the following problems: CVE-2006-0903 Improper handling of SQL queries containing the NULL character allow local users to bypass logging mechanisms. CVE-2006-1516 Usernames without a trailing null byte allow remote attackers to read portions of memory. CVE-2006-1517 A request with an incorrect packet length allows remote attackers to obtain sensitive information. CVE-2006-1518 Specially crafted request packets with invalid length values allow the execution of arbitrary code. The following vulnerability matrix shows which version of MySQL in which distribution has this problem fixed: woody sarge sid mysql 3.23.49-8.15 n/a n/a mysql-dfsg n/a 4.0.24-10sarge2 n/a mysql-dfsg-4.1 n/a 4.1.11a-4sarge3 n/a mysql-dfsg-5.0 n/a n/a 5.0.21-3 We recommend that you upgrade your mysql packages.