RHBA-2011:1195 - Bug Fix Advisory

Topic

Updated openssh packages that resolve an issue are now available for Red Hat
Enterprise Linux 5.

Description

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

These updated openssh packages fix the following bug:

• When Federal Information Processing Standards (FIPS) mode was enabled on a

system, key-based authentication was always unsuccessful. This was caused by the
newly introduced pubkey_key_verify() verification function, which did not take
into consideration the fact that it was running in a FIPS environment. With this
update, the pubkey_key_verify() function has been modified to respect FIPS, and
authentication using an RSA key is now successful without any issues when FIPS
mode is enabled. (BZ#730652)

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

Solution

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/kb/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 ia64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

• BZ - 730652 - cannot login with rsa key on FIPS environment.

CVEs

(none)

References

(none)