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Port 3050 Details

known port assignments and vulnerabilities
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Port(s) Protocol Service Details Source
3050 tcp,udp gds_db Borland Interbase database

Stack-based buffer overflow in the database service (ibserver.exe) in Borland InterBase 2007 SP2 allows remote attackers to execute arbitrary code via a malformed opcode 0x52 request to TCP port 3050.
References: [CVE-2008-1910], [BID-28730]

Integer overflow in Borland Interbase 2007 SP2 ( allows remote attackers to execute arbitrary code via a malformed packet to TCP port 3050, which triggers a stack-based buffer overflow. NOTE: this issue might be related to [CVE-2008-0467].
References: [CVE-2008-2559] [BID-29302] [SECUNIA-30299]

Multiple stack-based buffer overflows in Borland InterBase LI through, and WI through, allow remote attackers to execute arbitrary code via (1) a long service attach request on TCP port 3050 to the (a) SVC_attach or (b) INET_connect function, (2) a long create request on TCP port 3050 to the (c) isc_create_database or (d) jrd8_create_database function, (3) a long attach request on TCP port 3050 to the (e) isc_attach_database or (f) PWD_db_aliased function, or unspecified vectors involving the (4) jrd8_attach_database or (5) expand_filename2 function.
References: [CVE-2007-5243] [BID-25917] [OSVDB-38609] [SECUNIA-27058]

A vulnerability has been discovered in Firebird, which can be exploited by malicious people to compromise a vulnerable system. The vulnerability is caused due to an error when processing requests and can be exploited to cause a buffer overflow via a specially crafted request sent to TCP port 3050.
References: [CVE-2013-2492], [SECUNIA-52506]

gds_db (IANA official)
3050 tcp,udp gds_db (Interbase/Firebird) (official) Wikipedia
3050 tcp,udp gds_db gds_db IANA
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External Resources
SANS Internet Storm Center: port 3050

Well Known Ports: 0 through 1023.
Registered Ports: 1024 through 49151.
Dynamic/Private : 49152 through 65535.

TCP ports use the Transmission Control Protocol. TCP is the most commonly used protocol on the Internet and any TCP/IP network. Whereas the IP protocol deals only with packets, TCP enables two hosts to establish a connection and exchange streams of data. TCP guarantees delivery of data and that packets will be delivered in the same order in which they were sent. Guaranteed communication/delivery is the key difference between TCP and UDP.

UDP ports use the Datagram Protocol, a communications protocol for the Internet network, transport, and session layers. Like TCP (Transmission Control Protocol), UDP is used with IP (the Internet Protocol) and makes possible the transmission of datagrams from one computer to applications on another computer, but unlike TCP, UDP is connectionless and does not guarantee reliable communication; it's up to the application that received the message to process any errors and verify correct delivery. UDP is often used with time-sensitive applications, such as audio/video streaming, where dropping some packets is preferable to waiting for delayed data.

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