Low: openssh security, bug fix, and enhancement update
Security Advisory: Low
Updated openssh packages that fix one security issue, several bugs, and add
various enhancements are now available for Red Hat Enterprise Linux 6.
The Red Hat Security Response Team has rated this update as having low
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.
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.
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
https://access.redhat.com/site/articles/11258
Vulmon