[SECURITY] [DSA-310-1] New xaos packages fix improper setuid-root execution

From: Matt Zimmerman (mdz_at_debian.org)
Date: 06/09/03

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    - --------------------------------------------------------------------------
    Debian Security Advisory DSA 310-1 security@debian.org
    http://www.debian.org/security/ Matt Zimmerman
    June 8th, 2003 http://www.debian.org/security/faq
    - --------------------------------------------------------------------------

    Package : xaos
    Vulnerability : improper setuid-root execution
    Problem-Type : local
    Debian-specific: no

    XaoS, a program for displaying fractal images, is installed setuid
    root on certain architectures in order to use svgalib, which requires
    access to the video hardware. However, it is not designed for secure
    setuid execution, and can be exploited to gain root privileges.

    In these updated packages, the setuid bit has been removed from the
    xaos binary. Users who require the svgalib functionality should grant
    these privileges only to a trusted group.

    This vulnerability is exploitable in version 3.0-18 (potato) on i386
    and alpha architectures, and in version 3.0-23 (woody) on the i386
    architecture only.

    For the stable distribution (woody) this problem has been fixed in
    version 3.0-23woody1.

    For the old stable distribution (potato) this problem has been fixed
    in version 3.0-18potato1.

    For the unstable distribution (sid) this problem has been fixed in
    version 3.1r-4.

    We recommend that you update your xaos package.

    Upgrade Instructions
    - --------------------

    wget url
            will fetch the file for you
    dpkg -i file.deb
            will install the referenced file.

    If you are using the apt-get package manager, use the line for
    sources.list as given below:

    apt-get update
            will update the internal database
    apt-get upgrade
            will install corrected packages

    You may use an automated update by adding the resources from the
    footer to the proper configuration.

    Debian GNU/Linux 2.2 alias potato
    - ---------------------------------

      Source archives:

        http://security.debian.org/pool/updates/main/x/xaos/xaos_3.0-18potato1.dsc
          Size/MD5 checksum: 656 b1e362a474d581ba1824da60b6d0820f
        http://security.debian.org/pool/updates/main/x/xaos/xaos_3.0-18potato1.diff.gz
          Size/MD5 checksum: 12875 39439ff29e99e622e0740c0ed5649ec0
        http://security.debian.org/pool/updates/main/x/xaos/xaos_3.0.orig.tar.gz
          Size/MD5 checksum: 491030 5a63c3b696821e5d5d566ad9da308117

      Alpha architecture:

        http://security.debian.org/pool/updates/main/x/xaos/xaos_3.0-18potato1_alpha.deb
          Size/MD5 checksum: 301304 b8223ba542c4f94303a87bf4b59da1aa

      ARM architecture:

        http://security.debian.org/pool/updates/main/x/xaos/xaos_3.0-18potato1_arm.deb
          Size/MD5 checksum: 255420 32d3f7ec3f08a69c9f69748dd8eb0b7d

      Intel IA-32 architecture:

        http://security.debian.org/pool/updates/main/x/xaos/xaos_3.0-18potato1_i386.deb
          Size/MD5 checksum: 265706 c1bc554debfe8f6db35967221ad2523b

      Motorola 680x0 architecture:

        http://security.debian.org/pool/updates/main/x/xaos/xaos_3.0-18potato1_m68k.deb
          Size/MD5 checksum: 238206 bfb273abb997b558f28e6d42a0ce7f40

      PowerPC architecture:

        http://security.debian.org/pool/updates/main/x/xaos/xaos_3.0-18potato1_powerpc.deb
          Size/MD5 checksum: 259944 c3896220cf2a49c534c7e56daf6c3354

      Sun Sparc architecture:

        http://security.debian.org/pool/updates/main/x/xaos/xaos_3.0-18potato1_sparc.deb
          Size/MD5 checksum: 264324 53527bd2c6f16b8a1db962ba15e5e5b0

    Debian GNU/Linux 3.0 alias woody
    - --------------------------------

      Source archives:

        http://security.debian.org/pool/updates/main/x/xaos/xaos_3.0-23woody1.dsc
          Size/MD5 checksum: 614 aa5a4173d03ddf6da942bbe695e646ec
        http://security.debian.org/pool/updates/main/x/xaos/xaos_3.0-23woody1.diff.gz
          Size/MD5 checksum: 13151 42a7e4faf31422ae75ba2b8fe67bf9d7
        http://security.debian.org/pool/updates/main/x/xaos/xaos_3.0.orig.tar.gz
          Size/MD5 checksum: 491030 5a63c3b696821e5d5d566ad9da308117

      Alpha architecture:

        http://security.debian.org/pool/updates/main/x/xaos/xaos_3.0-23woody1_alpha.deb
          Size/MD5 checksum: 279926 7b7a28e6ba9d131100b1029cf33b2e37

      ARM architecture:

        http://security.debian.org/pool/updates/main/x/xaos/xaos_3.0-23woody1_arm.deb
          Size/MD5 checksum: 257958 d396c2c8738217064e1920a562565e45

      Intel IA-32 architecture:

        http://security.debian.org/pool/updates/main/x/xaos/xaos_3.0-23woody1_i386.deb
          Size/MD5 checksum: 264816 31590033134a75d3c4e6d75d103ffd23

      Intel IA-64 architecture:

        http://security.debian.org/pool/updates/main/x/xaos/xaos_3.0-23woody1_ia64.deb
          Size/MD5 checksum: 341294 601627022d14f90785a517c56f8d930e

      HP Precision architecture:

        http://security.debian.org/pool/updates/main/x/xaos/xaos_3.0-23woody1_hppa.deb
          Size/MD5 checksum: 310934 7e5777a884f8cc891887a27f8fedba3f

      Motorola 680x0 architecture:

        http://security.debian.org/pool/updates/main/x/xaos/xaos_3.0-23woody1_m68k.deb
          Size/MD5 checksum: 237376 33b445e27055f6842bad5e9c31f52704

      Big endian MIPS architecture:

        http://security.debian.org/pool/updates/main/x/xaos/xaos_3.0-23woody1_mips.deb
          Size/MD5 checksum: 268060 2eb4e8c435e8d2bfc66efe7be9e07373

      Little endian MIPS architecture:

        http://security.debian.org/pool/updates/main/x/xaos/xaos_3.0-23woody1_mipsel.deb
          Size/MD5 checksum: 268362 7a053d46c1b7700e9cda511b36bfae21

      PowerPC architecture:

        http://security.debian.org/pool/updates/main/x/xaos/xaos_3.0-23woody1_powerpc.deb
          Size/MD5 checksum: 258706 51ffe73454ea16c3cb7c9b6cdde7a905

      IBM S/390 architecture:

        http://security.debian.org/pool/updates/main/x/xaos/xaos_3.0-23woody1_s390.deb
          Size/MD5 checksum: 252020 a894fc0d12fb273070bcef7edad23eeb

      Sun Sparc architecture:

        http://security.debian.org/pool/updates/main/x/xaos/xaos_3.0-23woody1_sparc.deb
          Size/MD5 checksum: 260600 3652647f2f5331338e214c4d0be7105c

      These files will probably be moved into the stable distribution on
      its next revision.

    - ---------------------------------------------------------------------------------
    For apt-get: deb http://security.debian.org/ stable/updates main
    For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
    Mailing list: debian-security-announce@lists.debian.org
    Package info: `apt-cache show <pkg>' and http://packages.debian.org/>
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