[SECURITY] [DSA 255-1] New tcpdump packages fix denial of service vulnerability

From: Martin Schulze (joey@infodrom.org)
Date: 02/27/03

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    Date: Thu, 27 Feb 2003 21:35:06 +0100 (CET)
From: joey@infodrom.org (Martin Schulze)
To: bugtraq@securityfocus.com

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    - --------------------------------------------------------------------------
    Debian Security Advisory DSA 255-1 security@debian.org
    http://www.debian.org/security/ Martin Schulze
    February 27th, 2003 http://www.debian.org/security/faq
    - --------------------------------------------------------------------------

    Package : tcpdump
    Vulnerability : infinite loop
    Problem-Type : remote
    Debian-specific: no
    CVE Id : CAN-2003-0108

    Andrew Griffiths and iDEFENSE Labs discovered a problem in tcpdump, a
    powerful tool for network monitoring and data acquisition. An
    attacker is able to send a specially crafted network packet which
    causes tcpdump to enter an infinite loop.

    In addition to the above problem the tcpdump developers discovered a
    potential infinite loop when parsing malformed BGP packets. They also
    discovered a buffer overflow that can be exploited with certain
    malformed NFS packets.

    For the stable distribution (woody) these problems have been
    fixed in version 3.6.2-2.3.

    For the old stable distribution (potato) does not seem to be affected
    by this problem.

    For the unstable distribution (sid) these problems have been fixed in
    version 3.7.1-1.2.

    We recommend that you upgrade your tcpdump packages.

    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/t/tcpdump/tcpdump_3.6.2-2.3.dsc
          Size/MD5 checksum: 587 7316fea776a03291973de9db5dda34a1
        http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.3.diff.gz
          Size/MD5 checksum: 10413 467813aab9a57869160e3082c7a11679
        http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2.orig.tar.gz
          Size/MD5 checksum: 380635 6bc8da35f9eed4e675bfdf04ce312248

      Alpha architecture:

        http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.3_alpha.deb
          Size/MD5 checksum: 213570 17577dd6cbe33e486dd8b193a3f188b0

      ARM architecture:

        http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.3_arm.deb
          Size/MD5 checksum: 179598 005967e88f0895d8f962f07f3db525f7

      Intel IA-32 architecture:

        http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.3_i386.deb
          Size/MD5 checksum: 169482 2e6aadf125c8e7bbde3d0dd162201480

      Intel IA-64 architecture:

        http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.3_ia64.deb
          Size/MD5 checksum: 246744 c42598c647c1380689a7e196a7f685bb

      HP Precision architecture:

        http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.3_hppa.deb
          Size/MD5 checksum: 192974 6d2133766c5e3d2dd5d8121a55d57bed

      Motorola 680x0 architecture:

        http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.3_m68k.deb
          Size/MD5 checksum: 157444 b20c63dca863d7e752eac1ac8089b469

      Big endian MIPS architecture:

        http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.3_mips.deb
          Size/MD5 checksum: 188792 07f375adc0a86d704ce12e6f50036fa8

      Little endian MIPS architecture:

        http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.3_mipsel.deb
          Size/MD5 checksum: 193058 46aa1ad7a702c9214e028c7f1f7bf877

      PowerPC architecture:

        http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.3_powerpc.deb
          Size/MD5 checksum: 176780 074f39b9dcc3d4d47f73c8e2052ff91c

      IBM S/390 architecture:

        http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.3_s390.deb
          Size/MD5 checksum: 174304 72e42bf4582d67d69b2f6bc84961f7db

      Sun Sparc architecture:

        http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.3_sparc.deb
          Size/MD5 checksum: 179182 e1ebe0dec3667c68f8213827e66826fe

      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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