openssh, pam_ssh_agent_auth security update

CentOS Errata and Security Advisory CESA-2013:1591

OpenSSH is OpenBSD’s Secure Shell (SSH) protocol implementation.
These packages include the core files necessary for the OpenSSH client
and server.

The default OpenSSH configuration made it easy for remote attackers to
exhaust unauthorized connection slots and prevent other users from being
able to log in to a system. This flaw has been addressed by enabling random
early connection drops by setting MaxStartups to 10:30:100 by default.
For more information, refer to the sshd_config(5) man page. (CVE-2010-5107)

These updated openssh packages include numerous bug fixes and enhancements.
Space precludes documenting all of these changes in this advisory.
Users are directed to the Red Hat Enterprise Linux 6.5 Technical Notes,
linked to in the References, for information on the most significant of
these changes.

All openssh users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues and add
these enhancements.

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-cr-announce/2013-November/027303.html

Affected packages:
openssh
openssh-askpass
openssh-clients
openssh-ldap
openssh-server
pam_ssh_agent_auth

Upstream details at:
https://access.redhat.com/errata/RHSA-2013:1591