Message-ID: <20040519111605.18C2A135B@wotan.suse.de>
Date: Wed, 19 May 2004 13:16:05 +0200 (CEST)
From: krahmer@...e.de (Sebastian Krahmer)
To: bugtraq@...urityfocus.com
Subject: SUSE Security Announcement: cvs (SuSE-SA:2004:013)


-----BEGIN PGP SIGNED MESSAGE-----

______________________________________________________________________________

                        SUSE Security Announcement

        Package:                cvs
        Announcement-ID:        SuSE-SA:2004:013
        Date:                   Wed May 19 13:00:00 MEST 2004
        Affected products:      8.0, 8.1, 8.2, 9.0, 9.1
                                SuSE Firewall on CD 2 - VPN
                                SuSE Firewall on CD 2
                                SuSE Linux Enterprise Server 7, 8
                                SuSE Linux Office Server
                                UnitedLinux 1.0
        Vulnerability Type:     remote command execution
        Severity (1-10):        6
        SUSE default package:   No.
        Cross References:       CAN-2004-0396

    Content of this advisory:
        1) security vulnerability resolved: buffer overflow in cvs
           problem description, discussion, solution and upgrade information
        2) pending vulnerabilities, solutions, workarounds:
            - neon
            - subversion
            - kdelibs/kdelibs3
        3) standard appendix (further information)

______________________________________________________________________________

1)  problem description, brief discussion, solution, upgrade information

    The Concurrent Versions System (CVS) offers tools which allow developers
    to share and maintain large software projects.
      Stefan Esser reported buffer overflow conditions within the cvs program.
    They allow remote attackers to execute arbitrary code as the user
    the cvs server runs as. Since there is no easy workaround we strongly
    recommend to update the cvs package.

    Please download the update package for your distribution and verify its
    integrity by the methods listed in section 3) of this announcement.
    Then, install the package using the command "rpm -Fhv file.rpm" to apply
    the update.
    Our maintenance customers are being notified individually. The packages
    are being offered to install from the maintenance web.



    Intel i386 Platform:

    SuSE-9.1:
    ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/cvs-1.11.14-24.3.i586.rpm
      69c95cbfa186423e5ccd0bceca85ce5e
    patch rpm(s):
    ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/cvs-1.11.14-24.3.i586.patch.rpm
      ed22f3796ba36d11e8b57206cc44ba50
    source rpm(s):
    ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/src/cvs-1.11.14-24.3.src.rpm
      decc60230083b364be07846947baa10f

    SuSE-9.0:
    ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/cvs-1.11.6-81.i586.rpm
      161e5eece784ccec09e54d93a48a25eb
    patch rpm(s):
    ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/cvs-1.11.6-81.i586.patch.rpm
      3832183c3375821d96d6bbe841c2542a
    source rpm(s):
    ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/src/cvs-1.11.6-81.src.rpm
      2e92aa8a31f034ab24b95d5586a878b3

    SuSE-8.2:
    ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/cvs-1.11.5-112.i586.rpm
      c03d619fa87ffdd87e9d194ce21ce26a
    patch rpm(s):
    ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/cvs-1.11.5-112.i586.patch.rpm
      239d2dcb90a84b9a189f7320443b7710
    source rpm(s):
    ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/src/cvs-1.11.5-112.src.rpm
      8f813f570a0c24f204141006aa113e9b

    SuSE-8.1:
    ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/cvs-1.11.1p1-329.i586.rpm
      f0ded9029096e4c7fe448bfd766873c8
    patch rpm(s):
    ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/cvs-1.11.1p1-329.i586.patch.rpm
      f283e18a349d0b591fcc99e856e2d2a0
    source rpm(s):
    ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/src/cvs-1.11.1p1-329.src.rpm
      2fea2689f867ef164db489fc3e7ae7ae

    SuSE-8.0:
    ftp://ftp.suse.com/pub/suse/i386/update/8.0/d3/cvs-1.11.1p1-329.i386.rpm
      c92b15968da527c390bc2fdb43678aed
    patch rpm(s):
    ftp://ftp.suse.com/pub/suse/i386/update/8.0/d3/cvs-1.11.1p1-329.i386.patch.rpm
      bd265ef4d22e697083fb7c4651282a29
    source rpm(s):
    ftp://ftp.suse.com/pub/suse/i386/update/8.0/zq1/cvs-1.11.1p1-329.src.rpm
      a4fd9ee43942c279f1daff2f62472cee


    Opteron x86_64 Platform:

    SuSE-9.1:
    ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/cvs-1.11.14-24.3.x86_64.rpm
      94d36ec490837efc5b31ec425f7fd52e
    patch rpm(s):
    ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/cvs-1.11.14-24.3.x86_64.patch.rpm
      94909d2d14bac22141ae5422d0905e93
    source rpm(s):
    ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/src/cvs-1.11.14-24.3.src.rpm
      0ccd11bc9288c9caf2b695fabb4f2c8e

    SuSE-9.0:
    ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/cvs-1.11.6-81.x86_64.rpm
      19bad506fcf71a5391c7e597aca841a9
    patch rpm(s):
    ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/cvs-1.11.6-81.x86_64.patch.rpm
      12bac5dd73b90cacb4da3ce7cabef60e
    source rpm(s):
    ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/src/cvs-1.11.6-81.src.rpm
      35f08b9134b849dbdeb43864c48e7406

______________________________________________________________________________

2)  Pending vulnerabilities in SUSE Distributions and Workarounds:

    - neon
    The neon library contains a buffer overflow which allows attackers
    to execute arbitrary code as the user utilizing the neon library.
    New neon packages are available on our ftp servers. CAN-2004-0398
    has been assigned to this issue.

    - subversion
    New subversion, subversion-devel and subversion-server packages are
    available on our ftp servers, fixing a stack overflow issue while
    handling REPORT queries. CAN-2004-0397 has been assigned to this issue.

    - kdelibs/kdelib3
    New kdelibs and kdelibs3 packages are currently being tested, fixing
    the vulnerabilities described in
    http://www.kde.org/info/security/advisory-20040517-1.txt.
    New packages will soon be available on our ftp servers.

______________________________________________________________________________

3)  standard appendix: authenticity verification, additional information

  - Package authenticity verification:

    SUSE update packages are available on many mirror ftp servers all over 
    the world. While this service is being considered valuable and important
    to the free and open source software community, many users wish to be 
    sure about the origin of the package and its content before installing
    the package. There are two verification methods that can be used 
    independently from each other to prove the authenticity of a downloaded
    file or rpm package:
    1) md5sums as provided in the (cryptographically signed) announcement.
    2) using the internal gpg signatures of the rpm package.

    1) execute the command 
        md5sum <name-of-the-file.rpm>
       after you downloaded the file from a SUSE ftp server or its mirrors.
       Then, compare the resulting md5sum with the one that is listed in the
       announcement. Since the announcement containing the checksums is 
       cryptographically signed (usually using the key security@...e.de), 
       the checksums show proof of the authenticity of the package.
       We disrecommend to subscribe to security lists which cause the 
       email message containing the announcement to be modified so that
       the signature does not match after transport through the mailing 
       list software.
       Downsides: You must be able to verify the authenticity of the
       announcement in the first place. If RPM packages are being rebuilt
       and a new version of a package is published on the ftp server, all 
       md5 sums for the files are useless.

    2) rpm package signatures provide an easy way to verify the authenticity
       of an rpm package. Use the command
        rpm -v --checksig <file.rpm>
       to verify the signature of the package, where <file.rpm> is the
       filename of the rpm package that you have downloaded. Of course, 
       package authenticity verification can only target an un-installed rpm
       package file.
       Prerequisites:
        a) gpg is installed
        b) The package is signed using a certain key. The public part of this
           key must be installed by the gpg program in the directory 
           ~/.gnupg/ under the user's home directory who performs the
           signature verification (usually root). You can import the key
           that is used by SUSE in rpm packages for SUSE Linux by saving
           this announcement to a file ("announcement.txt") and
           running the command (do "su -" to be root):
            gpg --batch; gpg < announcement.txt | gpg --import
           SUSE Linux distributions version 7.1 and thereafter install the
           key "build@...e.de" upon installation or upgrade, provided that
           the package gpg is installed. The file containing the public key
           is placed at the top-level directory of the first CD (pubring.gpg)
           and at ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de .


  - SUSE runs two security mailing lists to which any interested party may
    subscribe:

    suse-security@...e.com
        -   general/linux/SUSE security discussion. 
            All SUSE security announcements are sent to this list.
            To subscribe, send an email to 
                <suse-security-subscribe@...e.com>.

    suse-security-announce@...e.com
        -   SUSE's announce-only mailing list.
            Only SUSE's security announcements are sent to this list.
            To subscribe, send an email to
                <suse-security-announce-subscribe@...e.com>.

    For general information or the frequently asked questions (faq) 
    send mail to:
        <suse-security-info@...e.com> or
        <suse-security-faq@...e.com> respectively.

    =====================================================================
    SUSE's security contact is <security@...e.com> or <security@...e.de>.
    The <security@...e.de> public key is listed below.
    =====================================================================
______________________________________________________________________________

    The information in this advisory may be distributed or reproduced,
    provided that the advisory is not modified in any way. In particular,
    it is desired that the clear-text signature shows proof of the
    authenticity of the text.
    SUSE Linux AG makes no warranties of any kind whatsoever with respect
    to the information contained in this security advisory.

Type Bits/KeyID    Date       User ID
pub  2048R/3D25D3D9 1999-03-06 SuSE Security Team <security@...e.de>
pub  1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <build@...e.de>

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