Question: For some reason on suse 10.0 and 10.1 I cannot overflow the buffer so as to overwrite EIP no matter what. The attached code is a very simple example to illustrate my issue. Basically the following is what I get when the program segfaults on SuSE 10.1. However, the attached program produced the expected results 0x41414141 in main () on FreeBSD versions 5.3 and 6.1, on redhat 7.2 Any ideas why this is happening? What sort of security controls are in place that prevent this from happening? Are these controls unique to SuSE? ----------------------------------- plato@zion:~> gdb ./overflow GNU gdb 6.4 Copyright 2005 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "x86_64-suse-linux"...Using host libthread_db library "/lib64/libthread_db.so.1". (gdb) run Starting program: /home/plato/overflow warning: Lowest section in system-supplied DSO at 0xffffe000 is .hash at ffffe0b4 Program received signal SIGSEGV, Segmentation fault. 0x080483ec in main () at overflow.c:6 6 } (gdb) ------------------------------------------ Regards, Robert Hudock --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-unsubscribe@opensuse.org For additional commands, e-mail: opensuse-help@opensuse.org