Multiple vulnerabilities have been identified in Firebird, which could be exploited by remote attackers to cause a denial of service or take complete control of an affected system.
The first issue is caused by a buffer overflow error when processing an overly long username, which could be exploited by remote unauthenticated attackers to crash a vulnerable server or execute arbitrary code [...]
Solution
Upgrade to Firebird version 2.1 RC1 :
http://sourceforge.net/projects/firebird/
Credits
Vulnerabilities reported by the vendor, Damian Frizza and Alfredo Ortega (Core Security Technologies).
ChangeLog
2008-01-28 : Initial release
2008-01-29 : Updated Description
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