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Sicherheit: Ausführen von Code mit höheren Privilegien in pacemaker
Aktuelle Meldungen Distributionen
Name: Ausführen von Code mit höheren Privilegien in pacemaker
ID: RHSA-2015:2383-01
Distribution: Red Hat
Plattformen: Red Hat Enterprise Linux
Datum: Fr, 20. November 2015, 09:05
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1867
Applikationen: pacemaker

Originalnachricht

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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
=====================================================================

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 <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2015 Red Hat, Inc.
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