The Dia drawing program is designed to draw various types of diagrams.
Several format string flaws were found in the way dia displays certain messages. If an attacker is able to trick a Dia user into opening a carefully crafted file, it may be possible to execute arbitrary code as the user running Dia. (CVE-2006-2453, CVE-2006-2480)
Users of Dia should update to these erratum packages, which contain backported patches and are not vulnerable to these issues.