FLSA-2005:152842: Updated lvm package fixes security issue
Posted on: 07/25/2005 05:42 AM

Updated lvm package are available for Red Hat Linux 7.3/9 and Fedora Core 1

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Fedora Legacy Update Advisory

Synopsis: Updated lvm package fixes security issue
Advisory ID: FLSA:152842
Issue date: 2005-07-24
Product: Red Hat Linux, Fedora Core
Keywords: Bugfix
CVE Names: CAN-2004-0972
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1. Topic:

An updated lvm package that fixes a security flaw is now available.

LVM is the Linux Logical Volume Manager utilities.

2. Relevant releases/architectures:

Red Hat Linux 7.3 - i386
Red Hat Linux 9 - i386
Fedora Core 1 - i386

3. Problem description:

A vulnerability has been reported in LVM, which can be exploited by malicious, local users to perform certain actions on a vulnerable system with escalated privileges. The vulnerability is caused due to the "lvmcreate_initrd" script creating temporary files insecurely. This can be exploited via symlink attacks to overwrite arbitrary files on the system with the privileges of the user invoking the vulnerable script. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0972 to this issue.

Users of lvm are advised to upgrade to this errata package, which contains a backported patch correcting this issue.

4. Solution:

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

To update all RPMs for your particular architecture, run:

rpm -Fvh [filenames]

where [filenames] is a list of the RPMs you wish to upgrade. Only those RPMs which are currently installed will be updated. Those RPMs which are not installed but included in the list will not be updated. Note that you can also use wildcards (*.rpm) if your current directory *only* contains the desired RPMs.

Please note that this update is also available via yum and apt. Many people find this an easier way to apply updates. To use yum issue:

yum update

or to use apt:

apt-get update; apt-get upgrade

This will start an interactive process that will result in the appropriate RPMs being upgraded on your system. This assumes that you have yum or apt-get configured for obtaining Fedora Legacy content. Please visit http://www.fedoralegacy.org/docs for directions on how to configure yum and apt-get.

5. Bug IDs fixed:

https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=152842

6. RPMs required:

Red Hat Linux 7.3:
SRPM:
http://download.fedoralegacy.org/redhat/7.3/updates/SRPMS/lvm-1.0.3-4.1.legacy.src.rpm

i386:
http://download.fedoralegacy.org/redhat/7.3/updates/i386/lvm-1.0.3-4.1.legacy.i386.rpm

Red Hat Linux 9:

SRPM:
http://download.fedoralegacy.org/redhat/9/updates/SRPMS/lvm-1.0.3-12.1.legacy.src.rpm

i386:
http://download.fedoralegacy.org/redhat/9/updates/i386/lvm-1.0.3-12.1.legacy.i386.rpm

Fedora Core 1:

SRPM:
http://download.fedoralegacy.org/fedora/1/updates/SRPMS/lvm-1.0.3-13.1.legacy.src.rpm

i386:
http://download.fedoralegacy.org/fedora/1/updates/i386/lvm-1.0.3-13.1.legacy.i386.rpm


7. Verification:

SHA1 sum Package Name
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2f33b8e68c37dea86b0059275184d366a1bffddf
redhat/7.3/updates/i386/lvm-1.0.3-4.1.legacy.i386.rpm
a4d6f9581baf72a6facf9ae2184eddc5c22aa562
redhat/7.3/updates/SRPMS/lvm-1.0.3-4.1.legacy.src.rpm
3f66e70eef52374a49d9ab4dc87ec1ada14dec32
redhat/9/updates/i386/lvm-1.0.3-12.1.legacy.i386.rpm
3b852bbe5291bb43910920b51612b087bf8603aa
redhat/9/updates/SRPMS/lvm-1.0.3-12.1.legacy.src.rpm
9378ae503e4d43934813b93951160ed705f41cd3
fedora/1/updates/i386/lvm-1.0.3-13.1.legacy.i386.rpm
0d3176879d28e673fc18158d643870b1acf367fd
fedora/1/updates/SRPMS/lvm-1.0.3-13.1.legacy.src.rpm

These packages are GPG signed by Fedora Legacy for security. Our key is available from http://www.fedoralegacy.org/about/security.php

You can verify each package with the following command:

rpm --checksig -v lt;filenamegt;

If you only wish to verify that each package has not been corrupted or tampered with, examine only the sha1sum with the following command:

sha1sum lt;filenamegt;

8. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0972

9. Contact:

The Fedora Legacy security contact is lt;secnotice@fedoralegacy.orggt;. More project details at http://www.fedoralegacy.org


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