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

From: Matt Zimmerman (mdzat_private)
Date: Mon Aug 25 2003 - 21:53:29 PDT

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

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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-announceat_private
Package info: `apt-cache show <pkg>' and http://packages.debian.org/>
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Next message: Mandrake Linux Security Team: "MDKSA-2003:086 - Updated sendmail packages fix vulnerability"
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