[RHSA-2010:0567-01] Moderate: lvm2-cluster security update

[news 28]

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Red Hat Security Advisory

 

Synopsis: Moderate: lvm2-cluster security update

Advisory ID: RHSA-2010:0567-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2010-0567.html

Issue date: 2010-07-28

CVE Names: CVE-2010-2526

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1. Summary:

 

An updated lvm2-cluster package that fixes one security issue is now

available for Red Hat Enterprise Linux 5.

 

The Red Hat Security Response Team 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:

 

RHEL Cluster-Storage (v. 5 server) - i386, ia64, ppc, x86_64

 

3. Description:

 

The lvm2-cluster package contains support for Logical Volume Management

(LVM) in a clustered environment.

 

It was discovered that the cluster logical volume manager daemon (clvmd)

did not verify the credentials of clients connecting to its control UNIX

abstract socket, allowing local, unprivileged users to send control

commands that were intended to only be available to the privileged root

user. This could allow a local, unprivileged user to cause clvmd to exit,

or request clvmd to activate, deactivate, or reload any logical volume on

the local system or another system in the cluster. (CVE-2010-2526)

 

Note: This update changes clvmd to use a pathname-based socket rather than

an abstract socket. As such, the lvm2 update RHBA-2010:0569, which changes

LVM to also use this pathname-based socket, must also be installed for LVM

to be able to communicate with the updated clvmd.

 

All lvm2-cluster users should upgrade to this updated package, which

contains a backported patch to correct this issue. After installing the

updated package, clvmd must be restarted for the update to take effect.

 

4. 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

http://kbase.redhat.com/faq/docs/DOC-11259

 

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

 

614248 - CVE-2010-2526 lvm2-cluster: insecurity when communicating between lvm2 and clvmd

 

6. Package List:

 

RHEL Cluster-Storage (v. 5 server):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/lvm2-cluster-2.02.56-7.el5_5.4.src.rpm

 

i386:

lvm2-cluster-2.02.56-7.el5_5.4.i386.rpm

lvm2-cluster-debuginfo-2.02.56-7.el5_5.4.i386.rpm

 

ia64:

lvm2-cluster-2.02.56-7.el5_5.4.ia64.rpm

lvm2-cluster-debuginfo-2.02.56-7.el5_5.4.ia64.rpm

 

ppc:

lvm2-cluster-2.02.56-7.el5_5.4.ppc.rpm

lvm2-cluster-debuginfo-2.02.56-7.el5_5.4.ppc.rpm

 

x86_64:

lvm2-cluster-2.02.56-7.el5_5.4.x86_64.rpm

lvm2-cluster-debuginfo-2.02.56-7.el5_5.4.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://www.redhat.com/security/team/key/#package

 

7. References:

 

https://www.redhat.com/security/data/cve/CVE-2010-2526.html

http://www.redhat.com/security/updates/classification/#moderate

 

8. Contact:

 

The Red Hat security contact is . More contact

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

 

Copyright 2010 Red Hat, Inc.

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