Stack-based buffer overflow in Firebird before 2.0.4, and 2.1.x before 2.1.0 RC1, might allow remote attackers to execute arbitrary code via a long username.
https://exchange.xforce.ibmcloud.com/vulnerabilities/39981
http://www.vupen.com/english/advisories/2008/0300
http://www.securitytracker.com/id?1019277
http://www.securityfocus.com/bid/27467
http://www.debian.org/security/2008/dsa-1529
http://tracker.firebirdsql.org/browse/CORE-1603
http://sourceforge.net/project/shownotes.php?release_id=570816&group_id=9028
http://sourceforge.net/project/shownotes.php?group_id=9028&release_id=570800
http://security.gentoo.org/glsa/glsa-200803-02.xml
http://secunia.com/advisories/29501