1.168.1. RHBA-2009:1358: bug fix and enhancement update
Updated pam packages that fix several bugs and add various enhancements are now available for Red Hat Enterprise Linux 5.
Pluggable Authentication Modules (PAM) provide a system whereby administrators can set up authentication policies without having to recompile programs that handle authentication.
Users are advised to upgrade to these updated pam packages, which resolve these issues and add these enhancements.