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[RHSA-2015:1700-01] Important: pcs security update

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Red Hat Security Advisory

 

Synopsis: Important: pcs security update

Advisory ID: RHSA-2015:1700-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-1700.html

Issue date: 2015-09-01

CVE Names: CVE-2015-5189 CVE-2015-5190

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1. Summary:

 

Updated pcs packages that fix two security issues are now available for Red

Hat Enterprise Linux 6 and 7.

 

Red Hat Product Security has rated this update as having Important security

impact. Common Vulnerability Scoring System (CVSS) base scores, which give

detailed severity ratings, are available for each vulnerability from the

CVE links in the References section.

 

2. Relevant releases/architectures:

 

Red Hat Enterprise Linux High Availability (v. 6) - i386, x86_64

Red Hat Enterprise Linux Resilient Storage (v. 6) - i386, x86_64

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

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

 

3. Description:

 

The pcs packages provide a command-line configuration system for the

Pacemaker and Corosync utilities.

 

A command injection flaw was found in the pcsd web UI. An attacker able to

trick a victim that was logged in to the pcsd web UI into visiting a

specially crafted URL could use this flaw to execute arbitrary code with

root privileges on the server hosting the web UI. (CVE-2015-5190)

 

A race condition was found in the way the pcsd web UI backend performed

authorization of user requests. An attacker could use this flaw to send a

request that would be evaluated as originating from a different user,

potentially allowing the attacker to perform actions with permissions of a

more privileged user. (CVE-2015-5189)

 

These issues were discovered by Tomáš Jelínek of Red Hat.

 

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

contain backported patches to correct these issues.

 

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/):

 

1252805 - CVE-2015-5189 pcs: Incorrect authorization when using pcs web UI

1252813 - CVE-2015-5190 pcs: Command injection with root privileges.

 

6. Package List:

 

Red Hat Enterprise Linux High Availability (v. 6):

 

Source:

pcs-0.9.139-9.el6_7.1.src.rpm

 

i386:

pcs-0.9.139-9.el6_7.1.i686.rpm

pcs-debuginfo-0.9.139-9.el6_7.1.i686.rpm

 

x86_64:

pcs-0.9.139-9.el6_7.1.x86_64.rpm

pcs-debuginfo-0.9.139-9.el6_7.1.x86_64.rpm

 

Red Hat Enterprise Linux Resilient Storage (v. 6):

 

Source:

pcs-0.9.139-9.el6_7.1.src.rpm

 

i386:

pcs-0.9.139-9.el6_7.1.i686.rpm

pcs-debuginfo-0.9.139-9.el6_7.1.i686.rpm

 

x86_64:

pcs-0.9.139-9.el6_7.1.x86_64.rpm

pcs-debuginfo-0.9.139-9.el6_7.1.x86_64.rpm

 

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

 

Source:

pcs-0.9.137-13.el7_1.4.src.rpm

 

x86_64:

pcs-0.9.137-13.el7_1.4.x86_64.rpm

pcs-debuginfo-0.9.137-13.el7_1.4.x86_64.rpm

python-clufter-0.9.137-13.el7_1.4.x86_64.rpm

 

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

 

Source:

pcs-0.9.137-13.el7_1.4.src.rpm

 

x86_64:

pcs-0.9.137-13.el7_1.4.x86_64.rpm

pcs-debuginfo-0.9.137-13.el7_1.4.x86_64.rpm

python-clufter-0.9.137-13.el7_1.4.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-2015-5189

https://access.redhat.com/security/cve/CVE-2015-5190

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

 

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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