[SECURITY] [DSA-344-2] New unzip packages fix directory traversal vulnerability

From: Matt Zimmerman (mdz_at_debian.org)
Date: 08/26/03

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    Date: Tue, 26 Aug 2003 00:53:29 -0400
To: bugtraq@securityfocus.com

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    - --------------------------------------------------------------------------
    Debian Security Advisory DSA 344-2 security@debian.org
    http://www.debian.org/security/ Matt Zimmerman
    August 26th, 2003 http://www.debian.org/security/faq
    - --------------------------------------------------------------------------

    Package : unzip
    Vulnerability : directory traversal
    Problem-Type : local
    Debian-specific: no
    CVE Ids : CAN-2003-0282

    A directory traversal vulnerability in UnZip 5.50 allows attackers to
    bypass a check for relative pathnames ("../") by placing certain invalid
    characters between the two "." characters. The fix which was
    implemented in DSA-344-1 may not have protected against all methods of
    exploiting this vulnerability.

    For the stable distribution (woody) this problem has been fixed in
    version 5.50-1woody2.

    For the unstable distribution (sid) this problem has been fixed in
    version 5.50-3.

    We recommend that you update your unzip 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/u/unzip/unzip_5.50-1woody2.dsc
          Size/MD5 checksum: 571 357a3df0f8b5db02ece036643391dcff
        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody2.diff.gz
          Size/MD5 checksum: 5049 33fde5244d8309bc768ddc3a0b4e2f94
        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50.orig.tar.gz
          Size/MD5 checksum: 1068379 6d27bcdf9b51d0ad0f78161d0f99582e

      Alpha architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody2_alpha.deb
          Size/MD5 checksum: 160152 de975e2f34dfb01474a50684330a42a3

      ARM architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody2_arm.deb
          Size/MD5 checksum: 139214 9d2c2b9ed700e0eb7ecefec83cca6ab9

      Intel IA-32 architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody2_i386.deb
          Size/MD5 checksum: 122516 6276a9184819b15202548cc0d256ea5b

      Intel IA-64 architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody2_ia64.deb
          Size/MD5 checksum: 190682 698db8f4c479b0ac4bd36be80bbb6e57

      HP Precision architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody2_hppa.deb
          Size/MD5 checksum: 146718 2a256d26b91722e8a61f2abc2749770c

      Motorola 680x0 architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody2_m68k.deb
          Size/MD5 checksum: 119336 c41cb95920762fd9a7da4ba51663cc48

      Big endian MIPS architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody2_mips.deb
          Size/MD5 checksum: 142810 69570ffd84f2388b62875d5167250fe4

      Little endian MIPS architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody2_mipsel.deb
          Size/MD5 checksum: 143294 921f33ce8514a2734475bf83de949adf

      PowerPC architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody2_powerpc.deb
          Size/MD5 checksum: 136226 0a28157fa0fbee952ac7751338831f7d

      IBM S/390 architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody2_s390.deb
          Size/MD5 checksum: 136788 d3cc767b0564ab5eb9b7157dd0373d45

      Sun Sparc architecture:

        http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody2_sparc.deb
          Size/MD5 checksum: 147282 68f85c2ff2340a0e5f9015718f975539

      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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