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[lwip-devel] [bug #57562] TFTP Filenames not properly terminated

From: Christian Herber
Subject: [lwip-devel] [bug #57562] TFTP Filenames not properly terminated
Date: Thu, 9 Jan 2020 03:14:46 -0500 (EST)
User-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.117 Safari/537.36


                 Summary: TFTP Filenames not properly terminated
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: christianherber
            Submitted on: Thu 09 Jan 2020 08:14:44 AM UTC
                Category: apps
                Severity: 3 - Normal
              Item Group: Faulty Behaviour
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None
            lwIP version: 2.0.2



tftp_server line 247, copies the filename from tftp packet to the filename
char array. This does not copy the termination character. In consequence, the
filename passed to the open() function is not (always) terminated.


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