The remote host is missing an update to the system as announced in the referenced advisory.
The following packages are affected: dia dia-gnome
CVE-2006-1550 Multiple buffer overflows in the xfig import code (xfig-import.c) in Dia 0.87 and later before 0.95-pre6 allow user-complicit attackers to have an unknown impact via a crafted xfig file, possibly involving an invalid (1) color index, (2) number of points, or (3) depth.
Solution: Update your system with the appropriate patches or software upgrades.