The remote host is missing an update to mysql-5.1 announced via advisory DSA 2496-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%202496-1

Several issues have been discovered in the MySQL database server. The vulnerabilities are addressed by upgrading MySQL to a new upstream version, 5.1.63, which includes additional changes, such as performance improvements and corrections for data loss defects. These changes are described in the MySQL release notes at: http://dev.mysql.com/doc/refman/5.1/en/news-5-1-x.html CVE-2012-2122, an authentication bypass vulnerability, occurs only when MySQL has been built in with certain optimisations enabled. The packages in Debian stable (squeeze) are not known to be affected by this vulnerability. It is addressed in this update nonetheless, so future rebuilds will not become vulnerable to this issue. For the stable distribution (squeeze), these problems have been fixed in version 5.1.63-0+squeeze1. For the testing distribution (wheezy), these problems has been fixed in version 5.1.62-1 of the mysql-5.1 package and version 5.5.24+dfsg-1 of the mysql-5.5 package. We recommend that you upgrade your MySQL packages.