[RHSA-2015:2383-01] Moderate: pacemaker security, bug fix, and enhancement update

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Red Hat Security Advisory

 

Synopsis: Moderate: pacemaker security, bug fix, and enhancement update

Advisory ID: RHSA-2015:2383-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-2383.html

Issue date: 2015-11-19

CVE Names: CVE-2015-1867

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1. Summary:

 

Updated pacemaker packages that fix one security issue, several bugs, and

add two enhancements are now available for Red Hat Enterprise Linux 7.

 

Red Hat Product Security has rated this update as having Moderate 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.

 

2. Relevant releases/architectures:

 

Red Hat Enterprise Linux Server High Availability (v. 7) - s390x, x86_64

Red Hat Enterprise Linux Server Resilient Storage (v. 7) - s390x, x86_64

 

3. Description:

 

The Pacemaker Resource Manager is a collection of technologies working

together to provide data integrity and the ability to maintain

application availability in the event of a failure.

 

A flaw was found in the way pacemaker, a cluster resource manager,

evaluated added nodes in certain situations. A user with read-only access

could potentially assign any other existing roles to themselves and then

add privileges to other users as well. (CVE-2015-1867)

 

The pacemaker packages have been upgraded to upstream version 1.1.13, which

provides a number of bug fixes and enhancements over the previous version.

(BZ#1234680)

 

This update also fixes the following bugs:

 

* When a Pacemaker cluster included an Apache resource, and Apache's

mod_systemd module was enabled, systemd rejected notifications sent by

Apache. As a consequence, a large number of errors in the following format

appeared in the system log:

 

Got notification message from PID XXXX, but reception only permitted

for PID YYYY

 

With this update, the lrmd daemon now unsets the "NOTIFY_SOCKET" variable

in the described circumstances, and these error messages are no longer

logged. (BZ#1150184)

 

* Previously, specifying a remote guest node as a part of a group resource

in a Pacemaker cluster caused the node to stop working. This update adds

support for remote guests in Pacemaker group resources, and the described

problem no longer occurs. (BZ#1168637)

 

* When a resource in a Pacemaker cluster failed to start, Pacemaker updated

the resource's last failure time and incremented its fail count even if the

"on-fail=ignore" option was used. This in some cases caused unintended

resource migrations when a resource start failure occurred. Now, Pacemaker

does not update the fail count when "on-fail=ignore" is used. As a result,

the failure is displayed in the cluster status output, but is properly

ignored and thus does not cause resource migration. (BZ#1200849)

 

* Previously, Pacemaker supported semicolon characters (";") as delimiters

when parsing the pcmk_host_map string, but not when parsing the

pcmk_host_list string. To ensure consistent user experience, semicolons are

now supported as delimiters for parsing pcmk_host_list, as well.

(BZ#1206232)

 

In addition, this update adds the following enhancements:

 

* If a Pacemaker location constraint has the "resource-discovery=never"

option, Pacemaker now does not attempt to determine whether a specified

service is running on the specified node. In addition, if multiple location

constraints for a given resource specify "resource-discovery=exclusive",

then Pacemaker attempts resource discovery only on the nodes specified in

those constraints. This allows Pacemaker to skip resource discovery on

nodes where attempting the operation would lead to error or other

undesirable behavior. (BZ#1108853)

 

* The procedure of configuring fencing for redundant power supplies has

been simplified in order to prevent multiple nodes accessing cluster

resources at the same time and thus causing data corruption. For further

information, see the "Fencing: Configuring STONITH" chapter of the High

Availability Add-On Reference manual. (BZ#1206647)

 

* The output of the "crm_mon" and "pcs_status" commands has been modified

to be clearer and more concise, and thus easier to read when reporting

the status of a Pacemaker cluster with a large number of remote nodes and

cloned resources. (BZ#1115840)

 

All pacemaker users are advised to upgrade to these updated packages, which

correct these issues and add these enhancements.

 

4. Solution:

 

Before applying this update, make sure all previously released errata

relevant to your system have been applied.

 

For details on how to apply this update, refer to:

 

https://access.redhat.com/articles/11258

 

5. Bugs fixed (https://bugzilla.redhat.com/):

 

1162727 - member weirdness when adding/removing nodes

1172539 - Node ends up in a reboot loop when a resource with the same name exists

1182244 - crm_resource --restart broken

1182614 - Logs full of: error: gio_poll_dispatch_update: Adaptor for descriptor 8 is not in-use

1187321 - pacemaker - libqb dependency needs update

1194475 - edge case causes colocation constraint not to be honored.

1200785 - pacemaker-cli requires pacemaker but does not depend on it

1200849 - crmd: Resource marked with failcount=INFINITY on start failure with on-fail=ignore

1203053 - Nagios metadata is missing

1205188 - debug-promote implementation

1206232 - fencing: Allow semi-colon delimiter for pcmk_host_list

1211370 - CVE-2015-1867 pacemaker: acl read-only access allow role assignment

1211833 - systemd resources are shut down before the cluster at reboot

1212647 - crm_resource -C works inconsistently with clearing resources on baremetal remote nodes

1225854 - Error in `/usr/sbin/crm_resource': free(): invalid pointer: 0x00007f7199482848

1234680 - Rebase Pacemaker to obtain pacemaker-remote fixes for OSP

1246291 - lrmd killed by SIGSEGV

1267265 - A change in "crm_resource --set-parameter is-managed" introduces regression for Clone and M/S resources

 

6. Package List:

 

Red Hat Enterprise Linux Server High Availability (v. 7):

 

Source:

pacemaker-1.1.13-10.el7.src.rpm

 

s390x:

pacemaker-1.1.13-10.el7.s390x.rpm

pacemaker-cli-1.1.13-10.el7.s390x.rpm

pacemaker-cluster-libs-1.1.13-10.el7.s390x.rpm

pacemaker-cts-1.1.13-10.el7.s390x.rpm

pacemaker-debuginfo-1.1.13-10.el7.s390x.rpm

pacemaker-doc-1.1.13-10.el7.s390x.rpm

pacemaker-libs-1.1.13-10.el7.s390x.rpm

pacemaker-libs-devel-1.1.13-10.el7.s390x.rpm

pacemaker-nagios-plugins-metadata-1.1.13-10.el7.s390x.rpm

pacemaker-remote-1.1.13-10.el7.s390x.rpm

 

x86_64:

pacemaker-1.1.13-10.el7.x86_64.rpm

pacemaker-cli-1.1.13-10.el7.x86_64.rpm

pacemaker-cluster-libs-1.1.13-10.el7.i686.rpm

pacemaker-cluster-libs-1.1.13-10.el7.x86_64.rpm

pacemaker-cts-1.1.13-10.el7.x86_64.rpm

pacemaker-debuginfo-1.1.13-10.el7.i686.rpm

pacemaker-debuginfo-1.1.13-10.el7.x86_64.rpm

pacemaker-doc-1.1.13-10.el7.x86_64.rpm

pacemaker-libs-1.1.13-10.el7.i686.rpm

pacemaker-libs-1.1.13-10.el7.x86_64.rpm

pacemaker-libs-devel-1.1.13-10.el7.i686.rpm

pacemaker-libs-devel-1.1.13-10.el7.x86_64.rpm

pacemaker-nagios-plugins-metadata-1.1.13-10.el7.x86_64.rpm

pacemaker-remote-1.1.13-10.el7.x86_64.rpm

 

Red Hat Enterprise Linux Server Resilient Storage (v. 7):

 

Source:

pacemaker-1.1.13-10.el7.src.rpm

 

s390x:

pacemaker-1.1.13-10.el7.s390x.rpm

pacemaker-cli-1.1.13-10.el7.s390x.rpm

pacemaker-cluster-libs-1.1.13-10.el7.s390x.rpm

pacemaker-cts-1.1.13-10.el7.s390x.rpm

pacemaker-debuginfo-1.1.13-10.el7.s390x.rpm

pacemaker-doc-1.1.13-10.el7.s390x.rpm

pacemaker-libs-1.1.13-10.el7.s390x.rpm

pacemaker-libs-devel-1.1.13-10.el7.s390x.rpm

pacemaker-nagios-plugins-metadata-1.1.13-10.el7.s390x.rpm

pacemaker-remote-1.1.13-10.el7.s390x.rpm

 

x86_64:

pacemaker-1.1.13-10.el7.x86_64.rpm

pacemaker-cli-1.1.13-10.el7.x86_64.rpm

pacemaker-cluster-libs-1.1.13-10.el7.i686.rpm

pacemaker-cluster-libs-1.1.13-10.el7.x86_64.rpm

pacemaker-cts-1.1.13-10.el7.x86_64.rpm

pacemaker-debuginfo-1.1.13-10.el7.i686.rpm

pacemaker-debuginfo-1.1.13-10.el7.x86_64.rpm

pacemaker-doc-1.1.13-10.el7.x86_64.rpm

pacemaker-libs-1.1.13-10.el7.i686.rpm

pacemaker-libs-1.1.13-10.el7.x86_64.rpm

pacemaker-libs-devel-1.1.13-10.el7.i686.rpm

pacemaker-libs-devel-1.1.13-10.el7.x86_64.rpm

pacemaker-nagios-plugins-metadata-1.1.13-10.el7.x86_64.rpm

pacemaker-remote-1.1.13-10.el7.x86_64.rpm

 

These packages are GPG signed by Red Hat for security. Our key and

details on how to verify the signature are available from

https://access.redhat.com/security/team/key/

 

7. References:

 

https://access.redhat.com/security/cve/CVE-2015-1867

https://access.redhat.com/security/updates/classification/#moderate

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://access.redhat.com/security/team/contact/

 

Copyright 2015 Red Hat, Inc.

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