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.

Integer overflow in Firebird SQL 1.0.3 and earlier, 1.5.x before 1.5.6, 2.0.x before 2.0.4, and 2.1.x before 2.1.0 RC1 might allow remote attackers to execute arbitrary code via crafted (1) op_receive, (2) op_start, (3) op_start_and_receive, (4) op_send, (5) op_start_and_send, and (6) op_start_send_and_receive XDR requests, which triggers memory corruption.

Stack-based buffer overflow in the process_packet function in fbserver.exe in Firebird SQL 2.0.2 allows remote attackers to execute arbitrary code via a long request to TCP port 3050.

Multiple stack-based buffer overflows in Firebird LI 2.0.0.12748 and 2.0.1.12855, and WI 2.0.0.12748 and 2.0.1.12855, allow remote attackers to execute arbitrary code via (1) a long attach request on TCP port 3050 to the isc_attach_database function or (2) a long create request on TCP port 3050 to the isc_create_database function.

Multiple stack-based buffer overflows in Firebird LI 1.5.3.4870 and 1.5.4.4910, and WI 1.5.3.4870 and 1.5.4.4910, allow remote attackers to execute arbitrary code via (1) a long service attach request on TCP port 3050 to the SVC_attach function or (2) unspecified vectors involving the INET_connect function.

Unspecified vulnerability in the server in Firebird before 2.0.2 allows remote attackers to cause a denial of service (daemon crash) via an XNET session that makes multiple simultaneous requests to register events, aka CORE-1403.

Unspecified vulnerability in the server in Firebird before 2.0.2 allows remote attackers to determine the existence of arbitrary files, and possibly obtain other "file access," via unknown vectors, aka CORE-1312.

The Services API in Firebird before 2.0.2 allows remote authenticated users without SYSDBA privileges to read the server log (firebird.log), aka CORE-1148.

Unspecified vulnerability in the Services API in Firebird before 2.0.2 allows remote attackers to cause a denial of service, aka CORE-1149.

Unspecified vulnerability in the (1) attach database and (2) create database functionality in Firebird before 2.0.2, when a filename exceeds MAX_PATH_LEN, has unknown impact and attack vectors, aka CORE-1405.