[SECURITY] [DSA 752-1] New gzip packages fix several vulnerabilities

From: Martin Schulze (joey_at_infodrom.org)
Date: 07/11/05

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    Date: Mon, 11 Jul 2005 18:22:23 +0200 (CEST)
    To: bugtraq@securityfocus.com
    
    

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    - --------------------------------------------------------------------------
    Debian Security Advisory DSA 752-1 security@debian.org
    http://www.debian.org/security/ Martin Schulze
    July 11th, 2005 http://www.debian.org/security/faq
    - --------------------------------------------------------------------------

    Package : gzip
    Vulnerability : several
    Problem-Type : local (remote)
    Debian-specific: no
    CVE ID : CAN-2005-0988 CAN-2005-1228
    Debian Bug : 305255

    Two problems have been discovered in gzip, the GNU compression
    utility. The Common Vulnerabilities and Exposures project identifies
    the following problems.

    CAN-2005-0988

        Imran Ghory discovered a race condition in the permissions setting
        code in gzip. When decompressing a file in a directory an
        attacker has access to, gunzip could be tricked to set the file
        permissions to a different file the user has permissions to.

    CAN-2005-1228

        Ulf Härnhammar discovered a path traversal vulnerability in
        gunzip. When gunzip is used with the -N option an attacker could
        this vulnerability to create files in an arbitrary directory with
        the permissions of the user.

    For the oldstable distribution (woody) these problems have been fixed in
    version 1.3.2-3woody5.

    For the stable distribution (sarge) these problems have been fixed in
    version 1.3.5-10.

    For the unstable distribution (sid) these problems have been fixed in
    version 1.3.5-10.

    We recommend that you upgrade your gzip 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 3.0 alias woody
    - --------------------------------

      Source archives:

        http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody5.dsc
          Size/MD5 checksum: 577 b948bd1c9e50578a4a9109eed8090d20
        http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody5.diff.gz
          Size/MD5 checksum: 7146 59a0d39e9d98109bc698c22d6803516f
        http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2.orig.tar.gz
          Size/MD5 checksum: 311011 57bff96b6b4bcbb060566bdbed29485d

      Alpha architecture:

        http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody5_alpha.deb
          Size/MD5 checksum: 76648 53d463707426c9f84d7d0cb7a6a1d742

      ARM architecture:

        http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody5_arm.deb
          Size/MD5 checksum: 68946 2610eba8ec765b72a82e8ff1c5e8efc1

      Intel IA-32 architecture:

        http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody5_i386.deb
          Size/MD5 checksum: 62238 c323f08a1c1c30e10800f36eed4ec3d4

      Intel IA-64 architecture:

        http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody5_ia64.deb
          Size/MD5 checksum: 87028 3c295aefd208e38f523d9719322f3bb4

      HP Precision architecture:

        http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody5_hppa.deb
          Size/MD5 checksum: 72788 41c9211dce59753260d83635e8212ce1

      Motorola 680x0 architecture:

        http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody5_m68k.deb
          Size/MD5 checksum: 61456 67ed89c721455f23c26735dc322c53a3

      Big endian MIPS architecture:

        http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody5_mips.deb
          Size/MD5 checksum: 71896 3907341326822557d0e2c8ed87af77e5

      Little endian MIPS architecture:

        http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody5_mipsel.deb
          Size/MD5 checksum: 71742 4ced896d0887f2a2a81c339ffff7544b

      PowerPC architecture:

        http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody5_powerpc.deb
          Size/MD5 checksum: 69550 06f8ffd3e7bb5709b0c1e5854bd0c1d8

      IBM S/390 architecture:

        http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody5_s390.deb
          Size/MD5 checksum: 66936 5ad01afb6c4c6f79785c18ea1d84d28e

      Sun Sparc architecture:

        http://security.debian.org/pool/updates/main/g/gzip/gzip_1.3.2-3woody5_sparc.deb
          Size/MD5 checksum: 70416 ec2acb3ddfa0a6086665136ee4056e6e

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

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