[FLSA-2005:152842] Updated lvm package fixes security issue

From: Marc Deslauriers (marcdeslauriers_at_videotron.ca)
Date: 07/24/05

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To: bugtraq@securityfocus.com, full-disclosure@lists.grok.org.uk

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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
    ---------------------------------------------------------------------

    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 <filename>

    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 <filename>

    8. References:

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

    9. Contact:

    The Fedora Legacy security contact is <secnotice@fedoralegacy.org>. More
    project details at http://www.fedoralegacy.org

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