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Debian Security Advisory                             security@debian.org
http://www.debian.org/security/                         Wichert Akkerman
August 30, 2000
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Package        : xchat
Problem type   : remote exploit
Debian-specific: no

The version of X-Chat that was distributed with Debian GNU/Linux 2.2
has a vulnerability in the URL handling code: when a user clicks on
a URL X-Chat will start netscape to view its target. However it
did not check the URL for shell metacharacters, and this could be
abused to trick xchat into executing arbitraty commands.

This has been fixed in version 1.4.3-0.1, and we recommend you
upgrade your xchat package(s) immediately.

Update: the powerpc packages mentioned in the first release of this
advisory were linked with a version of libgtk that is not available
in Debian GNU/Linux 2.2. They have been recompiled with the correct
version and reuploaded.

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


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

  Potato was released for the alpha, arm, i386, m68k, powerpc and sparc
  architectures.


  Source archives:
    http://security.debian.org/dists/stable/updates/main/source/xchat_1.4.3-0.1.diff.gz
      MD5 checksum: 5cbdb48ac125bbbfb5be77dc4bfc8807
    http://security.debian.org/dists/stable/updates/main/source/xchat_1.4.3-0.1.dsc
      MD5 checksum: 5270a711fea64ba2aa8c69aecd58b337
    http://security.debian.org/dists/stable/updates/main/source/xchat_1.4.3.orig.tar.gz
      MD5 checksum: 2c7c49888490bb3725b693c804ee28a1

  Architecture indendent archives:
    http://security.debian.org/dists/stable/updates/main/binary-all/xchat-common_1.4.3-0.1_all.deb
      MD5 checksum: f4bee55efca7a60383db25b161752e25

  Alpha architecture:
    http://security.debian.org/dists/stable/updates/main/binary-alpha/xchat-gnome_1.4.3-0.1_alpha.deb
      MD5 checksum: 3f71beeecce1500a18d642d03e37515e
    http://security.debian.org/dists/stable/updates/main/binary-alpha/xchat-text_1.4.3-0.1_alpha.deb
      MD5 checksum: 921b36d41254be307ad60c1bf00648c3
    http://security.debian.org/dists/stable/updates/main/binary-alpha/xchat_1.4.3-0.1_alpha.deb
      MD5 checksum: 7523c9d010fa28a9f615bdde8c7b91d3

  ARM architecture:
    http://security.debian.org/dists/stable/updates/main/binary-arm/xchat-gnome_1.4.3-0.1_arm.deb
      MD5 checksum: 4088d38fcde4d8a138f74641d115255c
    http://security.debian.org/dists/stable/updates/main/binary-arm/xchat-text_1.4.3-0.1_arm.deb
      MD5 checksum: 0e272f1b53b711bfe484014ba88c3fb7
    http://security.debian.org/dists/stable/updates/main/binary-arm/xchat_1.4.3-0.1_arm.deb
      MD5 checksum: 4d754fedb2aa23a9ebbc0e2ec8843ad1

  Intel ia32 architecture:
    http://security.debian.org/dists/stable/updates/main/binary-i386/xchat-gnome_1.4.3-0.1_i386.deb
      MD5 checksum: 17619affa0c55c6d84d9410892e14621
    http://security.debian.org/dists/stable/updates/main/binary-i386/xchat-text_1.4.3-0.1_i386.deb
      MD5 checksum: 2cea1081ebf9d4fc2e12ff8b72414fb8
    http://security.debian.org/dists/stable/updates/main/binary-i386/xchat_1.4.3-0.1_i386.deb
      MD5 checksum: 5d8b1a7789ca73b6b63b48ab79c10ebf

  Motorola 680x0 architecture:
    http://security.debian.org/dists/stable/updates/main/binary-m68k/xchat-gnome_1.4.3-0.1_m68k.deb
      MD5 checksum: 016ad3766a6e9dee782b46e3f8e7a5d4
    http://security.debian.org/dists/stable/updates/main/binary-m68k/xchat-text_1.4.3-0.1_m68k.deb
      MD5 checksum: 7c4cfbc98b78f6ed2529db91d35cdaae
    http://security.debian.org/dists/stable/updates/main/binary-m68k/xchat_1.4.3-0.1_m68k.deb
      MD5 checksum: 5e5289f266d935fbd0b6d6dce3cb1c7d

  PowerPC architecture:
    http://security.debian.org/dists/stable/updates/main/binary-powerpc/xchat-gnome_1.4.3-0.1_powerpc.deb
      MD5 checksum: 2b0ad87fde7d7d51ae255c93af94cef5
    http://security.debian.org/dists/stable/updates/main/binary-powerpc/xchat-text_1.4.3-0.1_powerpc.deb
      MD5 checksum: 72831b0ae0538048b1c67cba19f534d0
    http://security.debian.org/dists/stable/updates/main/binary-powerpc/xchat_1.4.3-0.1_powerpc.deb
      MD5 checksum: d09aab5ec885854fe7f2e79833a3830c

  Sun Sparc architecture:
    http://security.debian.org/dists/stable/updates/main/binary-sparc/xchat-gnome_1.4.3-0.1_sparc.deb
      MD5 checksum: 1e11fc5b34aecae873a3533628baa888
    http://security.debian.org/dists/stable/updates/main/binary-sparc/xchat-text_1.4.3-0.1_sparc.deb
      MD5 checksum: 7294d7cfa92a40ce80f0eb4c69a545f8
    http://security.debian.org/dists/stable/updates/main/binary-sparc/xchat_1.4.3-0.1_sparc.deb
      MD5 checksum: 8bc2c465ec59636cc2b94b515f7c22c5

  These files will be moved into
  ftp://ftp.debian.org/debian/dists/stable/*/binary-$arch/ soon.

For not yet released architectures please refer to the appropriate
directory ftp://ftp.debian.org/debian/dists/sid/binary-$arch/ .

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

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