bugtraq - [SECURITY] [DSA 854-1] New tcpdump packages fix denial of service

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Message-ID: <m1EOecg-000pQ7C__35608.0655976713$1129080722$gmane$org@finlandia.Infodrom.North.DE>
Date: Sun, 9 Oct 2005 19:06:06 +0200 (CEST)
From: joey@...odrom.org (Martin Schulze)
To: bugtraq@...urityfocus.com
Subject: [SECURITY] [DSA 854-1] New tcpdump packages fix denial of service


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- --------------------------------------------------------------------------
Debian Security Advisory DSA 854-1                     security@...ian.org
http://www.debian.org/security/                             Martin Schulze
October 9th, 2005                       http://www.debian.org/security/faq
- --------------------------------------------------------------------------

Package        : tcpdump
Vulnerability  : infinite loop
Problem type   : remote
Debian-specific: no
CVE ID         : CAN-2005-1267

Simon Nielsen discovered that the BGP dissector in tcpdump, a powerful
tool for network monitoring and data acquisition, does not properly
handle a -1 return value from an internal function that decodes data
packets.  A specially crafted BGP packet can cause a denial of service
via an infinite loop.

The old stable distribution (woody) is not affected by this problem.

For the stable distribution (sarge) this problem has been fixed in
version 3.8.3-5sarge1.

We recommend that you upgrade your tcpdump 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 3.1 alias sarge
- --------------------------------

  Source archives:

    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge1.dsc
      Size/MD5 checksum:      666 8a61a856f03b483ec3c74affa09e8bb5
    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge1.diff.gz
      Size/MD5 checksum:    11493 b2976be14da25de46cf57a95f36739da
    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3.orig.tar.gz
      Size/MD5 checksum:   567116 30645001f4b97019677cad88d3811904

  Alpha architecture:

    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge1_alpha.deb
      Size/MD5 checksum:   301288 afbeb130b92fe734031bd60d5819f615

  AMD64 architecture:

    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge1_amd64.deb
      Size/MD5 checksum:   256412 7096add9926f7db7d1a915cfe19c0629

  ARM architecture:

    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge1_arm.deb
      Size/MD5 checksum:   250446 1846e890ce0ccf7aba4613130d7e2c2d

  Intel IA-32 architecture:

    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge1_i386.deb
      Size/MD5 checksum:   238642 1b8e9a1fe69912492e5bc1285e12a1af

  Intel IA-64 architecture:

    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge1_ia64.deb
      Size/MD5 checksum:   352410 59e00a553c766e41236647a85c898099

  HP Precision architecture:

    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge1_hppa.deb
      Size/MD5 checksum:   271478 0d1d4c3756689ba4efef69a106731c60

  Motorola 680x0 architecture:

    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge1_m68k.deb
      Size/MD5 checksum:   216704 a3e4d0279da8563af9da7a6981f2824a

  Big endian MIPS architecture:

    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge1_mips.deb
      Size/MD5 checksum:   259316 dc533a53d2bdc886547d345073cf56a8

  Little endian MIPS architecture:

    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge1_mipsel.deb
      Size/MD5 checksum:   272054 d5958967c55dc5c08dd3c3c2e546c391

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge1_powerpc.deb
      Size/MD5 checksum:   246300 073605199341d90268b8818cf1917f9d

  IBM S/390 architecture:

    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge1_s390.deb
      Size/MD5 checksum:   247216 50b1f28f1a86402e26f9155f4a790c39

  Sun Sparc architecture:

    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.8.3-5sarge1_sparc.deb
      Size/MD5 checksum:   247904 e03f3408ac1bd397cbe8bfdb2c2b4b7b


  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@...ts.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>

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