RHSA-2011:1580 - Security Advisory

Topic

An updated resource-agents package that fixes one security issue, several
bugs, and adds multiple enhancements is 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.

Description

The resource-agents package contains a set of scripts to interface with
several services to operate in a High Availability environment for both
Pacemaker and rgmanager service managers.

It was discovered that certain resource agent scripts set the
LD_LIBRARY_PATH environment variable to an insecure value containing empty
path elements. A local user able to trick a user running those scripts to
run them while working from an attacker-writable directory could use this
flaw to escalate their privileges via a specially-crafted dynamic library.
(CVE-2010-3389)

Red Hat would like to thank Raphael Geissert for reporting this issue.

This update also fixes the following bugs:

• When using the Sybase database and the ASEHAagent resource in the

cluster.conf file, it was not possible to run more than one ASEHAagent per
Sybase installation. Consequently, a second ASEHA (Sybase Adaptive Server
Enterprise (ASE) with the High Availability Option) agent could not be run.
This bug has been fixed and it is now possible to use two ASEHA agents
using the same Sybase installation. (BZ#711852)

• The s/lang scripts, which implement internal functionality for the

rgmanager package, while the central_processing option is in use, were
included in the wrong package. Now, the rgmanager and resource-agents
packages require each other for installation to prevent problems when they
are used separately. (BZ#693518)

• Previously, the oracledb.sh script was using the "shutdown abort" command

as the first attempt to shut down a database. With this update, oracledb.sh
first attempts a graceful shutdown via the "shutdown immediate" command
before forcing the shutdown. (BZ#689801)

• Previously, when setting up a service on a cluster with a shared IP

resource and an Apache resource, the generated httpd.conf file contained a
bug in the line describing the shared IP address (the "Listen" line). Now,
the Apache resource agent generates the "Listen" line properly. (BZ#667217)

• If a high-availability (HA) cluster service was defined with an Apache

resource and was named with two words, such as "kickstart httpd", the
service never started because it could not find a directory with the space
character in its name escaped. Now, Apache resources work properly if a
name contains a space as described above. (BZ#667222)

• When inheritance was used in the cluster.conf file, a bug in the

/usr/share/cluster/nfsclient.sh file prevented it from monitoring NFS
exports properly. Consequently, monitoring of NFS exports to NFS clients
resulted in an endless loop. This bug has been fixed and the monitoring now
works as expected. (BZ#691814)

• Previously, the postgres-8 resource agent did not detect when a

PostgreSQL server failed to start. This bug has been fixed and postgres-8
now works as expected in the described scenario. (BZ#694816)

• When using the Pacemaker resource manager, the fs.sh resource agent

reported an error condition, if called with the "monitor" parameter and the
referenced device did not exist. Consequently, the error condition
prevented the resource from being started. Now, fs.sh returns the proper
response code in the described scenario, thus fixing this bug. (BZ#709400)

• Previously, numerous RGManager resource agents returned incorrect

response codes when coupled with the Pacemaker resource manager. Now, the
agents have been updated to work with Pacemaker properly. (BZ#727643)

This update also adds the following enhancement:

• With this update, when the network is removed from a node using the

netfs.sh resource agent, it now recovers faster than previously.
(BZ#678497)

As well, this update upgrades the resource-agents package to upstream
version 3.9.2, which provides a number of bug fixes and enhancements over
the previous version. (BZ#707127)

All users of resource-agents are advised to upgrade to this updated
package, which corrects 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
https://access.redhat.com/kb/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux High Availability for x86_64 6 x86_64
• Red Hat Enterprise Linux High Availability for x86_64 6 i386
• Red Hat Enterprise Linux Resilient Storage for x86_64 6 x86_64
• Red Hat Enterprise Linux Resilient Storage for x86_64 6 i386
• Red Hat Enterprise Linux High Availability (for RHEL Server) from RHUI 6 x86_64
• Red Hat Enterprise Linux High Availability (for RHEL Server) from RHUI 6 i386
• Red Hat Enterprise Linux Resilient Storage (for RHEL Server) from RHUI 6 x86_64
• Red Hat Enterprise Linux Resilient Storage (for RHEL Server) from RHUI 6 i386

Fixes

• BZ - 639044 - CVE-2010-3389 rgmanager: insecure library loading vulnerability
• BZ - 661888 - Support/testing of XFS filesystem as part of RHEL HA Add On
• BZ - 667217 - Listen line in generated httpd.conf incorrect
• BZ - 667222 - Apache resources with spaces in their names fail to start
• BZ - 678497 - netfs.sh patch, when network is lost it takes too long to unmount the NFS filesystems
• BZ - 691814 - nfsclient exports doens't work.
• BZ - 693518 - Move rgmanager S/Lang from resource-agents to rgmanager
• BZ - 694816 - postgres-8 resource agent does not detect a failed start of postgres server
• BZ - 707127 - resource-agents rebase
• BZ - 709400 - fs.sh resource agent monitor should not return an error if device does not exist.
• BZ - 711852 - second ASEHA agent wont start - Unique attribute collision
• BZ - 727643 - Modify major resource-agent agents to provide proper return codes to pacemaker

CVEs

• CVE-2010-3389

References

• https://access.redhat.com/security/updates/classification/#low