Source Here : http://www.infomaticsonline.co.uk/News/1143925
The forthcoming Red Hat Enterprise Linux (RHEL) 3 suite will include a new feature to thwart worms and hackers.
The news arrives as the security of open-source systems comes under increased scrutiny. Less than two weeks ago, several serious security vulnerabilities were revealed in OpenSSH and Sendmail, two popular open-source software packages.
The RHEL 3 server operating system, due to ship within weeks, includes a feature called Position Independent Executables (PIE). This is a modification to the Linux kernel developed by Red Hat to reduce the threat from worms and other buffer-overflow based attacks.