The remote host is missing an update to samba announced via advisory DSA 1823-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%201823-1

Several vulnerabilities have been discovered in Samba, a SMB/CIFS file, print, and login server. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2009-1886 The smbclient utility contains a formatstring vulnerability where commands dealing with file names treat user input as format strings to asprintf. CVE-2009-1888 In the smbd daemon, if a user is trying to modify an access control list (ACL) and is denied permission, this deny may be overridden if the parameter dos filemode is set to yes in the smb.conf and the user already has write access to the file. The old stable distribution (etch) is not affected by these problems. For the stable distribution (lenny), these problems have been fixed in version 3.2.5-4lenny6. The unstable distribution (sid), which is only affected by CVE-2009-1888, will be fixed soon. We recommend that you upgrade your samba package.