[RHSA-2001:044-08] New samba packages available to fix /tmp races

From: bugzilla@redhat.com
Date: Tue May 15 2001 - 04:20:23 CEST

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    ---------------------------------------------------------------------
                       Red Hat, Inc. Red Hat Security Advisory

    Synopsis: New samba packages available to fix /tmp races
    Advisory ID: RHSA-2001:044-08
    Issue date: 2001-04-05
    Updated on: 2001-05-14
    Product: Red Hat Linux
    Keywords: samba /tmp overwrite
    Cross references:
    Obsoletes:
    ---------------------------------------------------------------------

    1. Topic:

    New samba packages are available; these packages fix /tmp races
    in smbclient and the printing code. By exploiting these vulnerabilities,
    local users could overwrite any file in the system.

    It is recommended that all samba users upgrade to the fixed packages.
    Please note that the packages for Red Hat Linux 6.2 require an updated
    logrotate package.

    Note: these packages include the security patch from Samba-2.0.9.

    2. Relevant releases/architectures:

    Red Hat Linux 5.2 - alpha, i386, sparc

    Red Hat Linux 6.2 - alpha, i386, sparc

    Red Hat Linux 7.0 - alpha, i386

    Red Hat Linux 7.1 - i386

    3. Problem description:

    The printing code in smbd uses predictable filenames in /tmp, and passes
    them as an output file to system(); a user could create a symbolic
    link in /tmp and then overwrite any file on the system; later on chmod(0666)
    is called on the file, leading to even more problems.

    The smbclient 'more' and 'mput' commands also used /tmp files insecurely;
    this is less of a risk in that these are not normally run as root.

    Thanks go to Marcus Meissner (mm@caldera.de) for investigating the issue
    and to the Samba team for providing a patch.

    4. Solution:

    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 directly *only* contains the
    desired RPMs.

    Please note that this update is also available via Red Hat Network. Many
    people find this an easier way to apply updates. To use Red Hat Network,
    launch the Red Hat Update Agent with the following command:

    up2date

    This will start an interactive process that will result in the appropriate
    RPMs being upgraded on your system.

    Again, note that the packages for Red Hat Linux 6.2 requre an updated
    logrotate package.

    5. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla for more info):

    33509 - Samba uses mktemp
    33915 - Samba + Quota allows user to pass hard limit; but with gibberish data not correct files
    31632 - Quota do not work on SAMBA Server.
    36424 - security hole allows a user with a shell account to corrupt local devices
    28919 - samba logrotate bug fills the partition limit

    6. RPMs required:

    Red Hat Linux 5.2:

    SRPMS:
    ftp://updates.redhat.com/5.2/en/os/SRPMS/samba-2.0.5a-2.5.2.src.rpm

    alpha:
    ftp://updates.redhat.com/5.2/en/os/alpha/samba-2.0.5a-2.5.2.alpha.rpm
    ftp://updates.redhat.com/5.2/en/os/alpha/samba-client-2.0.5a-2.5.2.alpha.rpm

    i386:
    ftp://updates.redhat.com/5.2/en/os/i386/samba-2.0.5a-2.5.2.i386.rpm
    ftp://updates.redhat.com/5.2/en/os/i386/samba-client-2.0.5a-2.5.2.i386.rpm

    sparc:
    ftp://updates.redhat.com/5.2/en/os/sparc/samba-2.0.5a-2.5.2.sparc.rpm
    ftp://updates.redhat.com/5.2/en/os/sparc/samba-client-2.0.5a-2.5.2.sparc.rpm

    Red Hat Linux 6.2:

    SRPMS:
    ftp://updates.redhat.com/6.2/en/os/SRPMS/samba-2.0.8-1.6.src.rpm
    ftp://updates.redhat.com/6.2/en/os/SRPMS/logrotate-3.5.2-0.6.src.rpm

    alpha:
    ftp://updates.redhat.com/6.2/en/os/alpha/samba-2.0.8-1.6.alpha.rpm
    ftp://updates.redhat.com/6.2/en/os/alpha/samba-client-2.0.8-1.6.alpha.rpm
    ftp://updates.redhat.com/6.2/en/os/alpha/samba-common-2.0.8-1.6.alpha.rpm
    ftp://updates.redhat.com/6.2/en/os/alpha/logrotate-3.5.2-0.6.alpha.rpm

    i386:
    ftp://updates.redhat.com/6.2/en/os/i386/samba-2.0.8-1.6.i386.rpm
    ftp://updates.redhat.com/6.2/en/os/i386/samba-client-2.0.8-1.6.i386.rpm
    ftp://updates.redhat.com/6.2/en/os/i386/samba-common-2.0.8-1.6.i386.rpm
    ftp://updates.redhat.com/6.2/en/os/i386/logrotate-3.5.2-0.6.i386.rpm

    sparc:
    ftp://updates.redhat.com/6.2/en/os/sparc/samba-2.0.8-1.6.sparc.rpm
    ftp://updates.redhat.com/6.2/en/os/sparc/samba-client-2.0.8-1.6.sparc.rpm
    ftp://updates.redhat.com/6.2/en/os/sparc/samba-common-2.0.8-1.6.sparc.rpm
    ftp://updates.redhat.com/6.2/en/os/sparc/logrotate-3.5.2-0.6.sparc.rpm

    Red Hat Linux 7.0:

    SRPMS:
    ftp://updates.redhat.com/7.0/en/os/SRPMS/samba-2.0.8-1.7.src.rpm

    alpha:
    ftp://updates.redhat.com/7.0/en/os/alpha/samba-2.0.8-1.7.alpha.rpm
    ftp://updates.redhat.com/7.0/en/os/alpha/samba-client-2.0.8-1.7.alpha.rpm
    ftp://updates.redhat.com/7.0/en/os/alpha/samba-common-2.0.8-1.7.alpha.rpm

    i386:
    ftp://updates.redhat.com/7.0/en/os/i386/samba-2.0.8-1.7.i386.rpm
    ftp://updates.redhat.com/7.0/en/os/i386/samba-client-2.0.8-1.7.i386.rpm
    ftp://updates.redhat.com/7.0/en/os/i386/samba-common-2.0.8-1.7.i386.rpm

    Red Hat Linux 7.1:

    SRPMS:
    ftp://updates.redhat.com/7.1/en/os/SRPMS/samba-2.0.8-1.7.1.src.rpm

    i386:
    ftp://updates.redhat.com/7.1/en/os/i386/samba-2.0.8-1.7.1.i386.rpm
    ftp://updates.redhat.com/7.1/en/os/i386/samba-client-2.0.8-1.7.1.i386.rpm
    ftp://updates.redhat.com/7.1/en/os/i386/samba-common-2.0.8-1.7.1.i386.rpm
    ftp://updates.redhat.com/7.1/en/os/i386/samba-swat-2.0.8-1.7.1.i386.rpm

    7. Verification:

    MD5 sum Package Name
    --------------------------------------------------------------------------
    c13389ba4bf3318b49e19b6469b2e0fe 5.2/en/os/SRPMS/samba-2.0.5a-2.5.2.src.rpm
    3f0a195dbf5a363459926806185e80ba 5.2/en/os/alpha/samba-2.0.5a-2.5.2.alpha.rpm
    58aa6febd254fc1e0784fbf6cfcfff02 5.2/en/os/alpha/samba-client-2.0.5a-2.5.2.alpha.rpm
    9a12a093f101c98a1532e37299c484ce 5.2/en/os/i386/samba-2.0.5a-2.5.2.i386.rpm
    5fda5f6989dea440ccdaf08446412ba9 5.2/en/os/i386/samba-client-2.0.5a-2.5.2.i386.rpm
    854c4cb488ab388141b99d477faf3e86 5.2/en/os/sparc/samba-2.0.5a-2.5.2.sparc.rpm
    9352f1fda00801b00e63a899770ff8de 5.2/en/os/sparc/samba-client-2.0.5a-2.5.2.sparc.rpm
    335f2123c5ce3606db471183dfcdebad 6.2/en/os/SRPMS/logrotate-3.5.2-0.6.src.rpm
    e4e697ad704a84c2ea4606be6ed19f5f 6.2/en/os/SRPMS/samba-2.0.8-1.6.src.rpm
    f0f9129497c91d12da04cd6219267aa3 6.2/en/os/alpha/logrotate-3.5.2-0.6.alpha.rpm
    9622500299782f17bda3657f85a9ad05 6.2/en/os/alpha/samba-2.0.8-1.6.alpha.rpm
    c612a2092a1b03295b7d9d9c25af583d 6.2/en/os/alpha/samba-client-2.0.8-1.6.alpha.rpm
    7fdd3bdafd9833e33167b33d19d3058f 6.2/en/os/alpha/samba-common-2.0.8-1.6.alpha.rpm
    33f4ce1b7967405f33f4ad1cb73fae35 6.2/en/os/i386/logrotate-3.5.2-0.6.i386.rpm
    edcecaa0c060f2371225d14ba5f6d908 6.2/en/os/i386/samba-2.0.8-1.6.i386.rpm
    21acd09eb2072ec859a622f91d2aaca2 6.2/en/os/i386/samba-client-2.0.8-1.6.i386.rpm
    917694eaf3f0d1f640e7ac9ec9acb329 6.2/en/os/i386/samba-common-2.0.8-1.6.i386.rpm
    3f14ee70fdb73ba09ef49e4c4f3c6a7f 6.2/en/os/sparc/logrotate-3.5.2-0.6.sparc.rpm
    7dd43e058143351a4605df173ede02a3 6.2/en/os/sparc/samba-2.0.8-1.6.sparc.rpm
    478fbb5206d9a32208a63202bb5237c5 6.2/en/os/sparc/samba-client-2.0.8-1.6.sparc.rpm
    9024c3b3e1a8ce90e9545979b5fd97f2 6.2/en/os/sparc/samba-common-2.0.8-1.6.sparc.rpm
    79e6f09ba81d43ee261a278ffd28e60a 7.0/en/os/SRPMS/samba-2.0.8-1.7.src.rpm
    cbfae3f2420cfae17b005211a8fdf692 7.0/en/os/alpha/samba-2.0.8-1.7.alpha.rpm
    f09d86bd2a942bfea3a89b00960584e3 7.0/en/os/alpha/samba-client-2.0.8-1.7.alpha.rpm
    a201143cad04e8cf7c199b247bcab800 7.0/en/os/alpha/samba-common-2.0.8-1.7.alpha.rpm
    a8ab5a701ae81d123b45e564e6a780d4 7.0/en/os/i386/samba-2.0.8-1.7.i386.rpm
    e7cd3ef7cad58e3be9ae72aa7e7a2b33 7.0/en/os/i386/samba-client-2.0.8-1.7.i386.rpm
    2ea653688e214f9b0ca6619967f77076 7.0/en/os/i386/samba-common-2.0.8-1.7.i386.rpm
    54613f26efbbfe5c2664bee923e63ce4 7.1/en/os/SRPMS/samba-2.0.8-1.7.1.src.rpm
    282c70feb595b651804678407b7d7b08 7.1/en/os/i386/samba-2.0.8-1.7.1.i386.rpm
    6e529dfb18f06b18360c755018864f8f 7.1/en/os/i386/samba-client-2.0.8-1.7.1.i386.rpm
    e5f9759330d4ac09ea02ddead9c461e1 7.1/en/os/i386/samba-common-2.0.8-1.7.1.i386.rpm
    6033af45917b0cbe447187ea56aeaefa 7.1/en/os/i386/samba-swat-2.0.8-1.7.1.i386.rpm

    These packages are GPG signed by Red Hat, Inc. for security. Our key
    is available at:
        http://www.redhat.com/corp/contact.html

    You can verify each package with the following command:
        rpm --checksig <filename>

    If you only wish to verify that each package has not been corrupted or
    tampered with, examine only the md5sum with the following command:
        rpm --checksig --nogpg <filename>

    8. References:

    Copyright(c) 2000, 2001 Red Hat, Inc.



    This archive was generated by hypermail 2b30 : Tue May 15 2001 - 15:11:23 CEST