seems that fb_inet_server is not compiled with stack protection
objdump -CR /usr/lib/firebird/2.1/bin/fb_inet_server
/usr/lib/firebird/2.1/bin/fb_inet_server: file format elf32-i386
DYNAMIC RELOCATION RECORDS OFFSET TYPE VALUE 08049ff0 R_386_GLOB_DAT __gmon_start__ 0804a000 R_386_JUMP_SLOT __gmon_start__ 0804a004 R_386_JUMP_SLOT __libc_start_main 0804a008 R_386_JUMP_SLOT server_main 0804a00c R_386_JUMP_SLOT __gxx_personality_v0
seems that fb_inet_server is not compiled with stack protection
objdump -CR /usr/lib/ firebird/ 2.1/bin/ fb_inet_ server
/usr/lib/ firebird/ 2.1/bin/ fb_inet_ server: file format elf32-i386
DYNAMIC RELOCATION RECORDS ty_v0
OFFSET TYPE VALUE
08049ff0 R_386_GLOB_DAT __gmon_start__
0804a000 R_386_JUMP_SLOT __gmon_start__
0804a004 R_386_JUMP_SLOT __libc_start_main
0804a008 R_386_JUMP_SLOT server_main
0804a00c R_386_JUMP_SLOT __gxx_personali