The remote host is missing an update to flexbackup announced via advisory DSA 1216-1. Eric Romang discovered that the flexbackup backup tool creates temporary files in an insecure manner, which allows denial of service through a symlink attack.

For the stable distribution (sarge) this problem has been fixed in version 1.2.1-2sarge1 For the upcoming stable distribution (etch) this problem has been fixed in version 1.2.1-3. For the unstable distribution (sid) this problem has been fixed in version 1.2.1-3. We recommend that you upgrade your flexbackup package. https://secure1.securityspace.com/smysecure/catid.html?in=DSA%201216-1