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Port 4868 Details


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Port(s) Protocol Service Details Source
4868 tcp applications Stack-based buffer overflow in the bpe_decompress function in (1) BlackBerry QNX Neutrino RTOS through 6.5.0 SP1 and (2) QNX Momentics Tool Suite through 6.5.0 SP1 in the QNX Software Development Platform allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via crafted packets to TCP port 4868.
References: [CVE-2013-2687]
SG
4868 udp applications Multiple QNX products is vulnerable to a buffer overflow, caused by improper bounds checking by copying the large input buffer to a small output buffer when handling the device file. By sending a specially-crafted request to UDP port 4868, a remote attacker could exploit this vulnerability to overflow a buffer and execute arbitrary code on the system or cause the application to crash.
References: [CVE-2013-2688] [XFDB-85524] [BID-61023]
SG
4868 tcp,udp phrelay Photon Relay IANA
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External Resources
SANS Internet Storm Center: port 4868

Notes:
Port numbers in computer networking represent communication endpoints. Ports are unsigned 16-bit integers (0-65535) that identify a specific process, or network service. IANA is responsible for internet protocol resources, including the registration of commonly used port numbers for well-known internet services.
Well Known Ports: 0 through 1023.
Registered Ports: 1024 through 49151.
Dynamic/Private : 49152 through 65535.

TCP ports use the Transmission Control Protocol, the most commonly used protocol on the Internet and any TCP/IP network. 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. Like TCP, UDP is used in combination with IP (the Internet Protocol) and facilitates 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 and realtime gaming, where dropping some packets is preferable to waiting for delayed data.

When troubleshooting unknown open ports, it is useful to find exactly what services/processes are listening to them. This can be accomplished in both Windows command prompt and Linux variants using the "netstat -aon" command. We also recommend runnig multiple anti-virus/anti-malware scans to rule out the possibility of active malicious software. For more detailed and personalized help please use our forums.

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