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AUSCERT External Security Bulletin Redistribution
ESB-2010.0654
Moderate: lvm2-cluster security update
29 July 2010
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: lvm2-cluster
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 5
Red Hat Enterprise Linux AS/ES/WS 4
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Denial of Service -- Existing Account
Unauthorised Access -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2010-2526
Original Bulletin:
https://rhn.redhat.com/errata/RHSA-2010-0567.html
https://rhn.redhat.com/errata/RHSA-2010-0568.html
Comment: This advisory references vulnerabilities in products which run on
platforms other than Red Hat. It is recommended that administrators
running lvm2-cluster check for an updated version of the software
for their operating system.
This bulletin contains two (2) Red Hat security advisories.
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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
=====================================================================
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 <secalert@redhat.com>. More contact
details at https://www.redhat.com/security/team/contact/
Copyright 2010 Red Hat, Inc.
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Red Hat Security Advisory
Synopsis: Moderate: lvm2-cluster security update
Advisory ID: RHSA-2010:0568-01
Product: Red Hat Global File System
Advisory URL: https://rhn.redhat.com/errata/RHSA-2010-0568.html
Issue date: 2010-07-28
CVE Names: CVE-2010-2526
=====================================================================
1. Summary:
An updated lvm2-cluster package that fixes one security issue is now
available for Red Hat Global File System for Red Hat Enterprise Linux 4.
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:
Red Hat Global File System 4AS - i386, ia64, ppc, x86_64
Red Hat Global File System 4ES - i386, ia64, x86_64
Red Hat Global File System 4WS - i386, ia64, 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:
Red Hat Global File System 4AS:
Source:
ftp://updates.redhat.com/enterprise/4AS/en/RHGFS/SRPMS/lvm2-cluster-2.02.42-5.el4_8.2.src.rpm
i386:
lvm2-cluster-2.02.42-5.el4_8.2.i386.rpm
lvm2-cluster-debuginfo-2.02.42-5.el4_8.2.i386.rpm
ia64:
lvm2-cluster-2.02.42-5.el4_8.2.ia64.rpm
lvm2-cluster-debuginfo-2.02.42-5.el4_8.2.ia64.rpm
ppc:
lvm2-cluster-2.02.42-5.el4_8.2.ppc64.rpm
lvm2-cluster-debuginfo-2.02.42-5.el4_8.2.ppc64.rpm
x86_64:
lvm2-cluster-2.02.42-5.el4_8.2.x86_64.rpm
lvm2-cluster-debuginfo-2.02.42-5.el4_8.2.x86_64.rpm
Red Hat Global File System 4ES:
Source:
ftp://updates.redhat.com/enterprise/4ES/en/RHGFS/SRPMS/lvm2-cluster-2.02.42-5.el4_8.2.src.rpm
i386:
lvm2-cluster-2.02.42-5.el4_8.2.i386.rpm
lvm2-cluster-debuginfo-2.02.42-5.el4_8.2.i386.rpm
ia64:
lvm2-cluster-2.02.42-5.el4_8.2.ia64.rpm
lvm2-cluster-debuginfo-2.02.42-5.el4_8.2.ia64.rpm
x86_64:
lvm2-cluster-2.02.42-5.el4_8.2.x86_64.rpm
lvm2-cluster-debuginfo-2.02.42-5.el4_8.2.x86_64.rpm
Red Hat Global File System 4WS:
Source:
ftp://updates.redhat.com/enterprise/4WS/en/RHGFS/SRPMS/lvm2-cluster-2.02.42-5.el4_8.2.src.rpm
i386:
lvm2-cluster-2.02.42-5.el4_8.2.i386.rpm
lvm2-cluster-debuginfo-2.02.42-5.el4_8.2.i386.rpm
ia64:
lvm2-cluster-2.02.42-5.el4_8.2.ia64.rpm
lvm2-cluster-debuginfo-2.02.42-5.el4_8.2.ia64.rpm
x86_64:
lvm2-cluster-2.02.42-5.el4_8.2.x86_64.rpm
lvm2-cluster-debuginfo-2.02.42-5.el4_8.2.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 <secalert@redhat.com>. More contact
details at https://www.redhat.com/security/team/contact/
Copyright 2010 Red Hat, Inc.
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