The remote host is missing an update to gtkdiskfree announced via advisory DSA 822-1. Eric Romang discovered that gtkdiskfree, a GNOME program that shows free and used space on filesystems, creates a temporary file in an insecure fashion. The old stable distribution (woody) does not contain the gtkdiskfree package.

For the stable distribution (sarge) this problem has been fixed in version 1.9.3-4sarge1. For the unstable distribution (sid) this problem will be fixed soon. We recommend that you upgrade your gtkdiskfree package. https://secure1.securityspace.com/smysecure/catid.html?in=DSA%20822-1