Buffer overflow detected in ntserv on Ubuntu 16.04 64bit#2

Steps to reproduce: 0. Download netrek-server-vanilla-2.18.0.tar.gz 1. Built a server on Ubuntu 16.04 64bit 2. started it 3. connected to the server with cow 4. Entered a username and a password (twice) 5. click on Federation server crashed with the following output: ``` *** buffer overflow detected ***: ntserv terminated ======= Backtrace: ========= /lib/x86_64-linux-gnu/libc.so.6(+0x777e5)[0x7f3b821f37e5] /lib/x86_64-linux-gnu/libc.so.6(__fortify_fail+0x5c)[0x7f3b8229456c] /lib/x86_64-linux-gnu/libc.so.6(+0x116570)[0x7f3b82292570] /lib/x86_64-linux-gnu/libc.so.6(+0x115815)[0x7f3b82291815] ntserv[0x410227] ntserv[0x411360] ntserv[0x42032d] ntserv[0x4078aa] ntserv[0x4061d9] ntserv[0x40381d] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7f3b8219c830] ntserv[0x403b89] ======= Memory map: ======== 00400000-00439000 r-xp 00000000 fc:02 12321148 /usr/local/games/netrek-server-vanilla/lib/ntserv 00638000-00639000 r--p 00038000 fc:02 12321148 /usr/local/games/netrek-server-vanilla/lib/ntserv 00639000-0063e000 rw-p 00039000 fc:02 12321148 /usr/local/games/netrek-server-vanilla/lib/ntserv 0063e000-0064e000 rw-p 00000000 00:00 0 009f6000-00a17000 rw-p 00000000 00:00 0 [heap] 7f3b81d54000-7f3b81d6a000 r-xp 00000000 fc:02 41418817 /lib/x86_64-linux-gnu/libgcc_s.so.1 7f3b81d6a000-7f3b81f69000 ---p 00016000 fc:02 41418817 /lib/x86_64-linux-gnu/libgcc_s.so.1 7f3b81f69000-7f3b81f6a000 rw-p 00015000 fc:02 41418817 /lib/x86_64-linux-gnu/libgcc_s.so.1 7f3b81f6a000-7f3b81f75000 r-xp 00000000 fc:02 41419481 /lib/x86_64-linux-gnu/libnss_files-2.23.so 7f3b81f75000-7f3b82174000 ---p 0000b000 fc:02 41419481 /lib/x86_64-linux-gnu/libnss_files-2.23.so 7f3b82174000-7f3b82175000 r--p 0000a000 fc:02 41419481 /lib/x86_64-linux-gnu/libnss_files-2.23.so 7f3b82175000-7f3b82176000 rw-p 0000b000 fc:02 41419481 /lib/x86_64-linux-gnu/libnss_files-2.23.so 7f3b82176000-7f3b8217c000 rw-p 00000000 00:00 0 7f3b8217c000-7f3b8233b000 r-xp 00000000 fc:02 41419496 /lib/x86_64-linux-gnu/libc-2.23.so 7f3b8233b000-7f3b8253b000 ---p 001bf000 fc:02 41419496 /lib/x86_64-linux-gnu/libc-2.23.so 7f3b8253b000-7f3b8253f000 r--p 001bf000 fc:02 41419496 /lib/x86_64-linux-gnu/libc-2.23.so 7f3b8253f000-7f3b82541000 rw-p 001c3000 fc:02 41419496 /lib/x86_64-linux-gnu/libc-2.23.so 7f3b82541000-7f3b82545000 rw-p 00000000 00:00 0 7f3b82545000-7f3b8254a000 r-xp 00000000 fc:02 12064576 /usr/lib/x86_64-linux-gnu/libgdbm.so.3.0.0 7f3b8254a000-7f3b82749000 ---p 00005000 fc:02 12064576 /usr/lib/x86_64-linux-gnu/libgdbm.so.3.0.0 7f3b82749000-7f3b8274a000 r--p 00004000 fc:02 12064576 /usr/lib/x86_64-linux-gnu/libgdbm.so.3.0.0 7f3b8274a000-7f3b8274b000 rw-p 00005000 fc:02 12064576 /usr/lib/x86_64-linux-gnu/libgdbm.so.3.0.0 7f3b8274b000-7f3b82754000 r-xp 00000000 fc:02 41419489 /lib/x86_64-linux-gnu/libcrypt-2.23.so 7f3b82754000-7f3b82953000 ---p 00009000 fc:02 41419489 /lib/x86_64-linux-gnu/libcrypt-2.23.so 7f3b82953000-7f3b82954000 r--p 00008000 fc:02 41419489 /lib/x86_64-linux-gnu/libcrypt-2.23.so 7f3b82954000-7f3b82955000 rw-p 00009000 fc:02 41419489 /lib/x86_64-linux-gnu/libcrypt-2.23.so 7f3b82955000-7f3b82983000 rw-p 00000000 00:00 0 7f3b82983000-7f3b82a8b000 r-xp 00000000 fc:02 41419488 /lib/x86_64-linux-gnu/libm-2.23.so 7f3b82a8b000-7f3b82c8a000 ---p 00108000 fc:02 41419488 /lib/x86_64-linux-gnu/libm-2.23.so 7f3b82c8a000-7f3b82c8b000 r--p 00107000 fc:02 41419488 /lib/x86_64-linux-gnu/libm-2.23.so 7f3b82c8b000-7f3b82c8c000 rw-p 00108000 fc:02 41419488 /lib/x86_64-linux-gnu/libm-2.23.so 7f3b82c8c000-7f3b82cb2000 r-xp 00000000 fc:02 41419492 /lib/x86_64-linux-gnu/ld-2.23.so 7f3b82e2f000-7f3b82ea1000 rw-s 00000000 00:05 196611 /SYSV00000080 (deleted) 7f3b82ea1000-7f3b82ea5000 rw-p 00000000 00:00 0 7f3b82eae000-7f3b82eb1000 rw-p 00000000 00:00 0 7f3b82eb1000-7f3b82eb2000 r--p 00025000 fc:02 41419492 /lib/x86_64-linux-gnu/ld-2.23.so 7f3b82eb2000-7f3b82eb3000 rw-p 00026000 fc:02 41419492 /lib/x86_64-linux-gnu/ld-2.23.so 7f3b82eb3000-7f3b82eb4000 rw-p 00000000 00:00 0 7ffc6eee8000-7ffc6ef09000 rw-p 00000000 00:00 0 [stack] 7ffc6efec000-7ffc6efee000 r--p 00000000 00:00 0 [vvar] 7ffc6efee000-7ffc6eff0000 r-xp 00000000 00:00 0 [vdso] ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall] Is this a known issue? ```