for most executables, with only a few exceptions for compatibility reasons. History Exec Shield was developed by various people at Red Hat; the first patch was released by Ingo Molnar of Red Hat and first released in May 2003. It is part of Fedora Core 1 through 6 and Red Hat Enterprise Linux since version 3. Other people involved include Jakub Jelínek, Ulrich Drepper, Richard Henderson and Arjan van de Ven. See also NX bit Openwall StackGuard W^X References External links Ingo Molnar's Exec Shield patch web page, includes documentation in the file ANNOUNCE-exec-shield Newsforge Feature Article Red Hat Magazine Feature/Project Article Negative security issues with ExecShield Linux Linux security software Operating system security