pam bug fix update

Updated pam packages that fix a bug in the pam_time and pam_group modules
are
now available.

Pluggable Authentication Modules (PAM) provide a system whereby
administrators can set up authentication policies, without having to
recompile programs to handle authentication.

These updated packages fix the following bug:

* the pam_time and pam_group modules, which support allowing or rejecting
authentication based on time and assigning group names respectively,
incorrectly matched user, service, or terminal name substrings even if no
wildcard was specified in the configuration. For example, "user" and
"user1" were incorrectly equated, causing policies to apply to both
usernames even when "user" was the only username subject to said policies.
This update improves the string matching in the pam_time and pam_group
modules ensuring such mis-matches (and consequent policy mis-applications)
no longer occur. (BZ#571341)

All pam users are advised to upgrade to these updated packages, which
resolve this issue.

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/docs/DOC-11259

571341 - pam_time not handling usernames correctly