Mandriva Linux Security Advisory 2009-186 - src/remote/server.cpp in fbserver.exe in Firebird SQL 1.5 before 1.5.6, 2.0 before 2.0.6, 2.1 before 2.1.3, and 2.5 before 2.5 Beta 2 allows remote attackers to cause a denial of service (daemon crash) via a malformed op_connect_request message that triggers an infinite loop or NULL pointer dereference. This update provides fixes for this vulnerability.
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Core Security Technologies Advisory - A remote denial of service vulnerability has been found in Firebird SQL, which can be exploited by a remote attacker to force the server to close the socket where it is listening for incoming connections and to enter an infinite loop, by sending an unexpected 'op_connect_request' message with invalid data to the server. Proof of concept code included.
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