RHBA-2011:0524 - Bug Fix Advisory

Topic

An updated setup package that fixes several bugs and adds various enhancements
is now available.

Description

The setup package contains a set of important system configuration and
setup files, such as passwd, group, and profile.

This updated setup package fixes the following bugs:

• When logging in to an interactive login shell, the contents of the

/etc/profile script are executed in order to set up an initial environment.
Messages which should have been displayed to the user upon logging in to the
Korn shell (ksh) were suppressed due to an internal test to determine whether
the shell is a login shell that relied upon the value of the PS1 environment
variable having already been set before /etc/profile was executed. However, this
environment variable is set in the Korn shell only after /etc/profile is
executed, which led to messages never being displayed to Korn shell users. This
update provides an alternative test that does not rely on the PS1 variable being
set before /etc/profile execution, with the result that messages are properly
displayed to users of the Korn shell upon login. (BZ#616117)

• Bash provides the environment variable, PROMPT_COMMAND, containing a command

that is called when a prompt is displayed. Previously, the PROMPT_COMMAND
command used two separate echo commands. Consequently, if a background process
returned text, the text might have displayed in the X terminal title rather than
the terminal itself. In this updated package, the PROMPT_COMMAND command uses a
single printf statement rather than two echo commands, ensuring returned text
displays in the shell. (BZ#620408)

• Scripts in /etc/profile.d/ can contain special characters (eg spaces) in their

filenames. Previously, if a script in the /etc/profile.d/ directory used a space
in its filename, error messages were returned every time the shell was started.
In this update, the script filenames in /etc/profile.d/ are formatted correctly
when called, and consequently, run as expected. (BZ#661645)

• Previously, using a user defined script in /etc/profile.d/ to modify umask

settings failed when using an interactive login shell. Consequently, when this
issue was encountered, the default umask settings were used. This updated
package provides modified startup scripts, ensuring user defined scripts in
/etc/profile.d/ set umask settings as instructed. (BZ#661681)

In addition, this updated package provides the following enhancements:

• The vdsm-reg package creates a user ID (UID) pair and group ID (GID) pair,

both with the name "rhevm" and number "109". This user and group are used as a
virtualization agent for Red Hat Enterprise Virtualization Manager. Previously,
this UID/GID pair were not reserved during setup and other packages or
administrators could accidentally assign those values to other users and groups.
The setup package now reserves these UID and GID names and numbers. Accidental
clashes with other users and groups are therefore avoided. (BZ#652287)

• The Automated Bug Reporting Tool (abrt) creates a user ID (UID) pair and group

ID (GID) pair, both with the name "abrt" and number "173". The automated bug
reporting process uses this user and group when it reports bugs. Previously,
this UID/GID pair were not reserved during setup and other packages or
administrators could accidentally assign those values to other users and groups.
The setup package now reserves these UID and GID names and numbers for abrt.
Accidental clashes with other users and groups are therefore avoided.
(BZ#670231)

Users are advised to upgrade to this updated setup package, which resolves these
issues and adds these enhancements.

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
http://kbase.redhat.com/faq/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems) 6 s390x

Fixes

• BZ - 616117 - ksh users can't see output from scripts in /etc/profile.d/
• BZ - 620408 - Text might be put in the terminal title instead of the terminal itself
• BZ - 652287 - RHEVM User and Group ID reservation request
• BZ - 661645 - Add double quotes arround sourced profile.d scripts
• BZ - 661681 - umask set in /etc/profile.d is eclipsed by bashrc
• BZ - 670231 - ABRT needs uid/gid reservation

CVEs

(none)

References

(none)