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

______________________________________________________________________________ 

                        SuSE Security Announcement 

        Package: imlib 
        Announcement-ID: SuSE-SA:2002:015 
        Date: Tuesday, May 7th 2002 11:30 MEST 
        Affected products: 6.4, 7.0, 7.1, 7.2, 7.3, 8.0 
        Vulnerability Type: remote privilege escalation 
        Severity (1-10): 3 
        SuSE default package: yes 
        Other affected systems: all systems/applications using imlib 

    Content of this advisory: 
        1) security vulnerability resolved: imlib fallback and Denial-of-Service 
           problem description, discussion, solution and upgrade information 
        2) pending vulnerabilities, solutions, workarounds 
        3) standard appendix (further information) 

______________________________________________________________________________ 

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

    The imlib library can be used by X11 applications to handle various 
    kinds of image data. 

    Imlib could, under certain circumstances, revert to using a netpbm 
    library which is well known to have security problems and should not 
    be used for handling untrusted data. Furthermore a heap corruption 
    could occur in the imlib code. 
    An attacker could send a maliciously formated image file to trigger 
    a Denial-of-Service attack or even execute arbitrary code on the 
    victim's machine. 
    Thanks go to Al Viro and Alan Cox who discovered these bugs. 

    The imlib RPM package is installed by default and affects all applications 
    linked against imlib, like imager viewers, browsers, mail clients and 
    so on. 

    About 140 applications shipped with the SuSE Linux distribution depend 
    on imlib. You need to update your system, as no temporary workaround is 
    possbible. 

    Please run ldconfig(8) as root after updating imlib and restart all 
    applications using imlib. 

    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. 

    i386 Intel Platform: 

    SuSE-8.0 
      ftp://ftp.suse.com/pub/suse/i386/update/8.0/gra1/imlib-1.9.10-324.i386.patch.rpm 
      9137d95a9205a335871a71341c2c70b4 
    SuSE-8.0 
      ftp://ftp.suse.com/pub/suse/i386/update/8.0/gra1/imlib-1.9.10-324.i386.rpm 
      4abd84a67aacb2c2fa21582e228e6a1d 
    SuSE-8.0 
      ftp://ftp.suse.com/pub/suse/i386/update/8.0/gra3/imlib-config-1.9.10-324.i386.patch.rpm 
      43103d0ff1e60f008499a69519d722d3 
    SuSE-8.0 
      ftp://ftp.suse.com/pub/suse/i386/update/8.0/gra3/imlib-config-1.9.10-324.i386.rpm 
      02df11424f082e4aed1c93527f7bab69 
    SuSE-8.0 
      ftp://ftp.suse.com/pub/suse/i386/update/8.0/gra3/imlib-devel-1.9.10-324.i386.patch.rpm 
      7680c38f5fef811bc96ff2fc00baafad 
    SuSE-8.0 
      ftp://ftp.suse.com/pub/suse/i386/update/8.0/gra3/imlib-devel-1.9.10-324.i386.rpm 
      bb449e5db3bf0827168b78d7636accac 
    source rpm: 
      ftp://ftp.suse.com/pub/suse/i386/update/8.0/zq1/imlib-1.9.10-324.src.rpm 
      d7cb0ddd0e18d645191f967b5b6e8109 

    SuSE-7.3 
      ftp://ftp.suse.com/pub/suse/i386/update/7.3/gra1/imlib-1.9.10-305.i386.rpm 
      b114e4ea9babf4ac8bd241674b0be0fd 
    SuSE-7.3 
      ftp://ftp.suse.com/pub/suse/i386/update/7.3/gra2/imlib-config-1.9.10-305.i386.rpm 
      7b3cd1c19161ed500bc4a0306eb66d0c 
    SuSE-7.3 
      ftp://ftp.suse.com/pub/suse/i386/update/7.3/gra2/imlib-devel-1.9.10-305.i386.rpm 
      41af6a469645a4ce4399935604cbf4c0 
    source rpm: 
      ftp://ftp.suse.com/pub/suse/i386/update/7.3/zq1/imlib-1.9.10-305.src.rpm 
      1839a719883e4aa5e543ee1bd22dc780 

    SuSE-7.2 
      ftp://ftp.suse.com/pub/suse/i386/update/7.2/gra1/imlib-1.9.9-100.i386.rpm 
      9ec9fb90418a6ba76432334cb7e15bb8 
    SuSE-7.2 
      ftp://ftp.suse.com/pub/suse/i386/update/7.2/gra2/imlib-config-1.9.9-100.i386.rpm 
      584e88a451341910524740cc54ca9c64 
    SuSE-7.2 
      ftp://ftp.suse.com/pub/suse/i386/update/7.2/gra2/imlib-devel-1.9.9-100.i386.rpm 
      c8c25f5396d565f75f68d48d7911813b 
    source rpm: 
      ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/imlib-1.9.9-100.src.rpm 
      a5691ba54118a52454d394e346a6b8b4 

    SuSE-7.1 
      ftp://ftp.suse.com/pub/suse/i386/update/7.1/gra1/imlib-1.9.8.1-132.i386.rpm 
      dc9d57492cd4faa497e23e14fcf5e57b 
    SuSE-7.1 
      ftp://ftp.suse.com/pub/suse/i386/update/7.1/gra2/imlib-devel-1.9.8.1-132.i386.rpm 
      58f03af3039c42db5b5a9d1a6acd9c27 
    SuSE-7.1 
      ftp://ftp.suse.com/pub/suse/i386/update/7.1/gra2/imlibcfe-1.9.8.1-132.i386.rpm 
      b82aa8abda460e45094fb4a0d683971f 
    source rpm: 
      ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/imlib-1.9.8.1-132.src.rpm 
      f16db540325f4626aa5fda6ab5aa196b 

    SuSE-7.0 
      ftp://ftp.suse.com/pub/suse/i386/update/7.0/gra1/imlib-1.9.8.1-132.i386.rpm 
      c089d699c31addadba09fd967677e535 
    SuSE-7.0 
      ftp://ftp.suse.com/pub/suse/i386/update/7.0/gra2/imlibcfe-1.9.8.1-132.i386.rpm 
      ee3c4bf8ab5e7068afcfb7160c38653f 
    SuSE-7.0 
      ftp://ftp.suse.com/pub/suse/i386/update/7.0/gra2/imlibdev-1.9.8.1-132.i386.rpm 
      253759ffd47eb19831e61c52673ebc6f 
    source rpm: 
      ftp://ftp.suse.com/pub/suse/i386/update/7.0/zq1/imlib-1.9.8.1-132.src.rpm 
      2bb8b096627c72e25949d4e22fc26c3a 

    SuSE-6.4 
      ftp://ftp.suse.com/pub/suse/i386/update/6.4/gra1/imlib-1.9.8-13.i386.rpm 
      b3175095dade1c545822b42707a99820 
    SuSE-6.4 
      ftp://ftp.suse.com/pub/suse/i386/update/6.4/gra2/imlibcfe-1.9.8-13.i386.rpm 
      a54bfa0d5b6333c20497dfd6ae1c65f6 
    SuSE-6.4 
      ftp://ftp.suse.com/pub/suse/i386/update/6.4/gra2/imlibdev-1.9.8-13.i386.rpm 
      6d5815e9cfc1e9020dd758fcf3e15f0b 
    source rpm: 
      ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/imlib-1.9.8-13.src.rpm 
      ce83d062fb32cf34ed6921490c732a51 

    Sparc Platform: 

    SuSE-7.3 
      ftp://ftp.suse.com/pub/suse/sparc/update/7.3/gra1/imlib-1.9.10-110.sparc.rpm 
      58f0df8b16d05b7b28d919c53b20ddfd 
    SuSE-7.3 
      ftp://ftp.suse.com/pub/suse/sparc/update/7.3/gra2/imlib-config-1.9.10-110.sparc.rpm 
      92c1e1a5a67b0a73197f793101af5955 
    SuSE-7.3 
      ftp://ftp.suse.com/pub/suse/sparc/update/7.3/gra2/imlib-devel-1.9.10-110.sparc.rpm 
      744db88a54bcff79068a7b2392e34fc2 
    source rpm: 
      ftp://ftp.suse.com/pub/suse/sparc/update/7.3/zq1/imlib-1.9.10-110.src.rpm 
      fa4c576fea3185bc7624e50620dbaaf5 

    SuSE-7.1 
      ftp://ftp.suse.com/pub/suse/sparc/update/7.1/gra1/imlib-1.9.8.1-109.sparc.rpm 
      dc3336004bc77ceca74035cb05b050f9 
    SuSE-7.1 
      ftp://ftp.suse.com/pub/suse/sparc/update/7.1/gra2/imlib-devel-1.9.8.1-109.sparc.rpm 
      a27820491016c5ff1fac5706b7042158 
    SuSE-7.1 
      ftp://ftp.suse.com/pub/suse/sparc/update/7.1/gra2/imlibcfe-1.9.8.1-109.sparc.rpm 
      b8b28901c088bc6763f462753ca58b7c 
    source rpm: 
      ftp://ftp.suse.com/pub/suse/sparc/update/7.1/zq1/imlib-1.9.8.1-109.src.rpm 
      7605166c8ee6fa6439ade68e0d67c5c6 

    SuSE-7.0 
      ftp://ftp.suse.com/pub/suse/sparc/update/7.0/gra1/imlib-1.9.8.1-109.sparc.rpm 
      8b1e28d9aa91061aed4569015e058fac 
    SuSE-7.0 
      ftp://ftp.suse.com/pub/suse/sparc/update/7.0/gra2/imlibcfe-1.9.8.1-109.sparc.rpm 
      01c5dae090bfe25d641d3389a11c16c2 
    SuSE-7.0 
      ftp://ftp.suse.com/pub/suse/sparc/update/7.0/gra2/imlibdev-1.9.8.1-109.sparc.rpm 
      3be7654afc64fb5a10c145f67dce9ba3 
    source rpm: 
      ftp://ftp.suse.com/pub/suse/sparc/update/7.0/zq1/imlib-1.9.8.1-109.src.rpm 
      6531693204e86106ceee748758038a07 

    AXP Alpha Platform: 

    SuSE-7.1 
      ftp://ftp.suse.com/pub/suse/axp/update/7.1/gra1/imlib-1.9.8.1-114.alpha.rpm 
      a84242de9afeec0b77f9d85b54f51f5b 
    SuSE-7.1 
      ftp://ftp.suse.com/pub/suse/axp/update/7.1/gra2/imlib-devel-1.9.8.1-114.alpha.rpm 
      a2829f4eba557fbc3160b6b4ffec0ac5 
    SuSE-7.1 
      ftp://ftp.suse.com/pub/suse/axp/update/7.1/gra2/imlibcfe-1.9.8.1-114.alpha.rpm 
      691b3d75dab0a3487b9f57c9b3501b17 
    source rpm: 
      ftp://ftp.suse.com/pub/suse/axp/update/7.1/zq1/imlib-1.9.8.1-114.src.rpm 
      58697086bf51f5231a1708765db8312c 

    SuSE-7.0 
      ftp://ftp.suse.com/pub/suse/axp/update/7.0/gra1/imlib-1.9.8.1-114.alpha.rpm 
      fbbf3f167844f0b046aafc14fed3b50e 
    SuSE-7.0 
      ftp://ftp.suse.com/pub/suse/axp/update/7.0/gra2/imlibcfe-1.9.8.1-114.alpha.rpm 
      e5a8c05ca99ce4b38de47b35258423d7 
    SuSE-7.0 
      ftp://ftp.suse.com/pub/suse/axp/update/7.0/gra2/imlibdev-1.9.8.1-114.alpha.rpm 
      26cc11948b4d61d6e4c0aa35472d2d7d 
    source rpm: 
      ftp://ftp.suse.com/pub/suse/axp/update/7.0/zq1/imlib-1.9.8.1-114.src.rpm 
      90df4b7a6860281ad6130b09e7e634e3 

    SuSE-6.4 
      ftp://ftp.suse.com/pub/suse/axp/update/6.4/gra1/imlib-1.9.8-12.alpha.rpm 
      2b231d47fed0f5ac88299abbb6abb1cd 
    SuSE-6.4 
      ftp://ftp.suse.com/pub/suse/axp/update/6.4/gra2/imlibcfe-1.9.8-12.alpha.rpm 
      99b4a22d820a3d846fc1bf0ca94843e4 
    SuSE-6.4 
      ftp://ftp.suse.com/pub/suse/axp/update/6.4/gra2/imlibdev-1.9.8-12.alpha.rpm 
      a7e9b77c92c28fe6bd07d4d8634a5253 
    source rpm: 
      ftp://ftp.suse.com/pub/suse/axp/update/6.4/zq1/imlib-1.9.8-12.src.rpm 
      11a996b48ee33c34b34acffad3a2a56c 

    PPC Power PC Platform: 

    SuSE-7.3 
      ftp://ftp.suse.com/pub/suse/ppc/update/7.3/gra1/imlib-1.9.10-199.ppc.rpm 
      f9c093c06636b62507846c6679e1e86d 
    SuSE-7.3 
      ftp://ftp.suse.com/pub/suse/ppc/update/7.3/gra2/imlib-config-1.9.10-199.ppc.rpm 
      973e484ba78847b5c47d5d6ef3972f56 
    SuSE-7.3 
      ftp://ftp.suse.com/pub/suse/ppc/update/7.3/gra2/imlib-devel-1.9.10-199.ppc.rpm 
      e06812ab04e4cbdc781d8e8d29dc3372 
    source rpm: 
      ftp://ftp.suse.com/pub/suse/ppc/update/7.3/zq1/imlib-1.9.10-199.src.rpm 
      8f85b9a40d36d328deb20b3255ddc05c 

    SuSE-7.1 
      ftp://ftp.suse.com/pub/suse/ppc/update/7.1/gra1/imlib-1.9.8.1-103.ppc.rpm 
      4a22c12194b6f1b80123a3466fe944c3 
    SuSE-7.1 
      ftp://ftp.suse.com/pub/suse/ppc/update/7.1/gra2/imlib-devel-1.9.8.1-103.ppc.rpm 
      85139eb233c567783c053f110baadb66 
    SuSE-7.1 
      ftp://ftp.suse.com/pub/suse/ppc/update/7.1/gra2/imlibcfe-1.9.8.1-103.ppc.rpm 
      ae31194e59d40267b36e38344b1ad139 
    source rpm: 
      ftp://ftp.suse.com/pub/suse/ppc/update/7.1/zq1/imlib-1.9.8.1-103.src.rpm 
      6558c6ca5bee620485fd52a9a7ec316d 

    SuSE-7.0 
      ftp://ftp.suse.com/pub/suse/ppc/update/7.0/gra1/imlib-1.9.8.1-103.ppc.rpm 
      e34ddef90edd1effb95771b5d7f6f935 
    SuSE-7.0 
      ftp://ftp.suse.com/pub/suse/ppc/update/7.0/gra2/imlibcfe-1.9.8.1-103.ppc.rpm 
      13eb42a163f919c9a4c097d8dc55a4a3 
    SuSE-7.0 
      ftp://ftp.suse.com/pub/suse/ppc/update/7.0/gra2/imlibdev-1.9.8.1-103.ppc.rpm 
      9e73db46c744ee38118c9cd4b97bda7a 
    source rpm: 
      ftp://ftp.suse.com/pub/suse/ppc/update/7.0/zq1/imlib-1.9.8.1-103.src.rpm 
      d321ee18493970c45b232362653dc447 

    SuSE-6.4 
      ftp://ftp.suse.com/pub/suse/ppc/update/6.4/gra1/imlib-1.9.8-13.ppc.rpm 
      3d255a622cd006656a662b0e7a5efb87 
    SuSE-6.4 
      ftp://ftp.suse.com/pub/suse/ppc/update/6.4/gra2/imlibcfe-1.9.8-13.ppc.rpm 
      311ac75ac7622c6b453c5d6ed5ef9c28 
    SuSE-6.4 
      ftp://ftp.suse.com/pub/suse/ppc/update/6.4/gra2/imlibdev-1.9.8-13.ppc.rpm 
      c5a86e6598a9fc801f56533e060dcc61 
    source rpm: 
      ftp://ftp.suse.com/pub/suse/ppc/update/6.4/zq1/imlib-1.9.8-13.src.rpm 
      294626d55b89e1a5b940b4441172b578 

______________________________________________________________________________ 

2) Pending vulnerabilities in SuSE Distributions and Workarounds: 

  - screen 
    A security report about a locally exploitable bug in screen's braile code 
    was published on Bugtraq. SuSE ships screen without this code enabled. 
    On SuSE version 8.0 screen isn't even running with higher privileges 
    anymore. 

______________________________________________________________________________ 

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@suse.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 uninstalled 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@suse.de" upon installation or upgrade, provided that 
           the package gpg is installed. The file containing the public key 
           is placed at the toplevel 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@suse.com 
        - general/linux/SuSE security discussion. 
            All SuSE security announcements are sent to this list. 
            To subscribe, send an email to 
                <suse-security-subscribe@suse.com>. 

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

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

    ===================================================================== 
    SuSE's security contact is <security@suse.com> or <security@suse.de>. 
    The <security@suse.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 cleartext 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@suse.de> 
pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <build@suse.de> 

- -----BEGIN PGP PUBLIC KEY BLOCK----- 
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Comment: For info see http://www.gnupg.org 

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