Issued:

2009-04-07

Updated:

2009-04-07

RHSA-2009:0411 - Moderate: device-mapper-multipath security update

Synopsis

Moderate: device-mapper-multipath security update

Type/Severity

Security Advisory Moderate

Topic

Updated device-mapper-multipath packages that fix a security issue are now available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

Description

The device-mapper multipath packages provide tools to manage multipath devices by issuing instructions to the device-mapper multipath kernel module, and by managing the creation and removal of partitions for device-mapper devices.

It was discovered that the multipathd daemon set incorrect permissions on the socket used to communicate with command line clients. An unprivileged, local user could use this flaw to send commands to multipathd, resulting in access disruptions to storage devices accessible via multiple paths and, possibly, file system corruption on these devices. (CVE-2009-0115)

Users of device-mapper-multipath are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue. The multipathd service must be restarted for the changes to take effect.

Important: the version of the multipathd daemon in Red Hat Enterprise Linux 5 has a known issue which may cause a machine to become unresponsive when the multipathd service is stopped. This issue is tracked in the Bugzilla bug #494582; a link is provided in the References section of this erratum. Until this issue is resolved, we recommend restarting the multipathd service by issuing the following commands in sequence:

# killall -KILL multipathd

# service multipathd restart

Solution

Before applying this update, make sure that all previously-released errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at This content is not included.http://kbase.redhat.com/faq/docs/DOC-11259

Affected Products

Updated Packages

• device-mapper-multipath-0.4.5-31.el4_7.1.s390x.rpm
• kpartx-0.4.7-23.el5_3.2.ppc.rpm
• device-mapper-multipath-0.4.5-31.el4_7.1.ia64.rpm
• device-mapper-multipath-0.4.7-23.el5_3.2.src.rpm
• kpartx-0.4.7-23.el5_3.2.s390x.rpm
• device-mapper-multipath-0.4.7-23.el5_3.2.ia64.rpm
• device-mapper-multipath-0.4.5-31.el4_7.1.i386.rpm
• device-mapper-multipath-0.4.7-23.el5_3.2.i386.rpm
• device-mapper-multipath-0.4.7-23.el5_3.2.ppc.rpm
• device-mapper-multipath-0.4.7-23.el5_3.2.x86_64.rpm
• kpartx-0.4.7-23.el5_3.2.i386.rpm
• device-mapper-multipath-0.4.5-31.el4_7.1.src.rpm
• kpartx-0.4.7-23.el5_3.2.x86_64.rpm
• device-mapper-multipath-0.4.5-31.el4_7.1.ppc.rpm
• device-mapper-multipath-0.4.7-23.el5_3.2.s390x.rpm
• device-mapper-multipath-0.4.5-31.el4_7.1.x86_64.rpm
• kpartx-0.4.7-23.el5_3.2.ia64.rpm
• device-mapper-multipath-0.4.5-31.el4_7.1.s390.rpm

Fixes

• This content is not included.BZ - 493330

CVEs

• CVE-2009-0115

References

• http://www.redhat.com/security/updates/classification/#moderate
• This content is not included.This content is not included.https://bugzilla.redhat.com/show_bug.cgi?id=494582

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.