Buffer overflow in Andreas Huggel Exiv2 before 0.9 does not null terminate strings before calling the sscanf function, which allows remote attackers to cause a denial of service (application crash) via images with crafted IPTC metadata.
https://exchange.xforce.ibmcloud.com/vulnerabilities/24349
http://www.vupen.com/english/advisories/2006/0345
http://secunia.com/advisories/18619
http://home.arcor.de/ahuggel/exiv2/changelog.html
http://dev.robotbattle.com/mantis/bug_view_advanced_page.php?bug_id=447