ASLR in *nix

[PaX] [1] also provides an ASLR patch for Linux and OpenBSD. [OpenBSD][2] and [PIE][3] provide detailed information on the randomized image layout.

[1] [PaX] PaX presentation, Brad Spengler,

[2][OpenBSD] Exploit Mitigation Techniques, Theo de Raadt

[3][PIE] OpenBSD’s Position Independent Executable (PIE) Implementation, Kurt Miller