|| ||firstname.lastname@example.org |
|| ||email@example.com |
|| ||Security ERRATA Low: resource-agents on SL6.x i386/x86_64 |
|| ||Thu, 8 Dec 2011 17:11:08 -0600|
|| ||Article, Thread
Synopsis: Low: resource-agents security, bug fix, and enhancement update
Issue Date: 2011-12-06
CVE Numbers: CVE-2010-3389
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.
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.
* 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.
* 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.
* 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.
* 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.
* 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.
* 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.
* 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.
* 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.
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.
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.
All users of resource-agents are advised to upgrade to this updated
package, which corrects these issues and adds these enhancements.
- Scientific Linux Development Team
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