The remote host is missing an update to mantis announced via advisory DSA 335-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%20335-1

mantis, a PHP/MySQL web based bug tracking system, stores the password used to access its database in a configuration file which is world-readable. This could allow a local attacker to read the password and gain read/write access to the database. For the stable distribution (woody) this problem has been fixed in version 0.17.1-3. For the old stable distribution (potato) does not contain a mantis package. For the unstable distribution (sid) this problem is fixed in version 0.17.5-6. We recommend that you update your mantis package.