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Category:   Application (Generic)  >   Tcpdump Vendors:   Tcpdump.org
(Debian Issues Fix) Tcpdump Boundary Checking Error in 'print-isakmp.c' Lets Remote Users Crash Tcpdump
SecurityTracker Alert ID:  1009691
SecurityTracker URL:  http://securitytracker.com/id/1009691
CVE Reference:   CVE-2004-0183, CVE-2004-0184   (Links to External Site)
Date:  Apr 7 2004
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 3.8.2
Description:   Two vulnerabilities were reported in tcpdump. A remote user can cause tcpdump to crash when in a certain configuration.

The tcpdump vendor reported that 'print-isakmp.c' does not properly validate user-supplied input in ISAKMP packets. A remote user can send a specially crafted packet to trigger the flaw.

Rapid7 subsequently issued an advisory [see the Message History] that provided additional details. The advisory indicated that the vulnerability applies only in the verbose packet display (-v) mode.

A remote user can send a specially crafted ISAKMP Delete payload with a large number of Security Protocol Identifiers (SPIs) to cause the tcpdump application to crash [CVE: CVE-2004-0183] due to a buffer overflow.

It is also reported that a remote user can send an ISAKMP Identification payload with a specially crafted payload length value that is less than 8 to cause tcpdump to crash [CVE: CVE-2004-0184].

The Rapid7 advisory provides additional details and is available at:

http://www.rapid7.com/advisories/R7-0017.html

Impact:   A remote user can cause tcpdump to crash.
Solution:   Debian has released a fix for the current stable distribution (woody) in version 3.6.2-2.8 and for the unstable distribution (sid) in version 3.7.2-4.

Debian GNU/Linux 3.0 alias woody:

Source archives:

http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.8.dsc
Size/MD5 checksum: 587 3ea0f5275b154c914cdc9dea888e8a06
http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.8.diff.gz
Size/MD5 checksum: 14097 7627c0d531403f0b0bdc7eaec51fb467
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_3.6.2-2.8_alpha.deb
Size/MD5 checksum: 214766 bf78750a3d7c0c963459eea70c45da6a

ARM architecture:

http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.8_arm.deb
Size/MD5 checksum: 180688 c876fa96a530b66260e4310131ffd8df

Intel IA-32 architecture:

http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.8_i386.deb
Size/MD5 checksum: 170210 96f4b92404a0c7b70b1cb37d03d16b70

Intel IA-64 architecture:

http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.8_ia64.deb
Size/MD5 checksum: 248364 b127ef521476369c4be62bb8b7de2ff2

HP Precision architecture:

http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.8_hppa.deb
Size/MD5 checksum: 196824 be99a94ba73d77f13626397cc1b20b4c

Motorola 680x0 architecture:

http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.8_m68k.deb
Size/MD5 checksum: 158452 6c6679b4baf1c6b5b347d803d91acf83

Big endian MIPS architecture:

http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.8_mips.deb
Size/MD5 checksum: 189936 90ccf025c9fab09251d6d60601e5c710

Little endian MIPS architecture:

http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.8_mipsel.deb
Size/MD5 checksum: 194318 cf0dd499755794f3086e5d40d3190bec

PowerPC architecture:

http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.8_powerpc.deb
Size/MD5 checksum: 177884 8a11b2a3fada3302b32d383ba2a5de44

IBM S/390 architecture:

http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.8_s390.deb
Size/MD5 checksum: 175274 4541e31919482795ae84406f7122e06a

Sun Sparc architecture:

http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.8_sparc.deb
Size/MD5 checksum: 180776 d6b4803e379f9354eb4a3f4546bdc22b

Vendor URL:  tcpdump.org/tcpdump-changes.txt (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Debian)
Underlying OS Comments:  3.0

Message History:   This archive entry is a follow-up to the message listed below.
Mar 30 2004 Tcpdump Boundary Checking Error in 'print-isakmp.c' Lets Remote Users Crash Tcpdump



 Source Message Contents

Subject:  [SECURITY] [DSA 478-1] New tcpdump packages fix denial of service


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- --------------------------------------------------------------------------
Debian Security Advisory DSA 478-1                     security@debian.org
http://www.debian.org/security/                             Matt Zimmerman
April 6th, 2004                         http://www.debian.org/security/faq
- --------------------------------------------------------------------------

Package        : tcpdump
Vulnerability  : denial of service
Problem-Type   : remote
Debian-specific: no
CVE Ids        : CAN-2004-0183 CAN-2004-0184

tcpdump, a tool for network monitoring and data acquisition, was found
to contain two vulnerabilities whereby tcpdump could be caused to
crash through attempts to read from invalid memory locations.  This
bug is triggered by certain invalid ISAKMP packets.

For the current stable distribution (woody) these problems have been
fixed in version 3.6.2-2.8.

For the unstable distribution (sid), these problems have been fixed in
version 3.7.2-4.

We recommend that you update 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 3.0 alias woody
- --------------------------------

  Source archives:

    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.8.dsc
      Size/MD5 checksum:      587 3ea0f5275b154c914cdc9dea888e8a06
    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.8.diff.gz
      Size/MD5 checksum:    14097 7627c0d531403f0b0bdc7eaec51fb467
    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_3.6.2-2.8_alpha.deb
      Size/MD5 checksum:   214766 bf78750a3d7c0c963459eea70c45da6a

  ARM architecture:

    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.8_arm.deb
      Size/MD5 checksum:   180688 c876fa96a530b66260e4310131ffd8df

  Intel IA-32 architecture:

    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.8_i386.deb
      Size/MD5 checksum:   170210 96f4b92404a0c7b70b1cb37d03d16b70

  Intel IA-64 architecture:

    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.8_ia64.deb
      Size/MD5 checksum:   248364 b127ef521476369c4be62bb8b7de2ff2

  HP Precision architecture:

    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.8_hppa.deb
      Size/MD5 checksum:   196824 be99a94ba73d77f13626397cc1b20b4c

  Motorola 680x0 architecture:

    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.8_m68k.deb
      Size/MD5 checksum:   158452 6c6679b4baf1c6b5b347d803d91acf83

  Big endian MIPS architecture:

    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.8_mips.deb
      Size/MD5 checksum:   189936 90ccf025c9fab09251d6d60601e5c710

  Little endian MIPS architecture:

    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.8_mipsel.deb
      Size/MD5 checksum:   194318 cf0dd499755794f3086e5d40d3190bec

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.8_powerpc.deb
      Size/MD5 checksum:   177884 8a11b2a3fada3302b32d383ba2a5de44

  IBM S/390 architecture:

    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.8_s390.deb
      Size/MD5 checksum:   175274 4541e31919482795ae84406f7122e06a

  Sun Sparc architecture:

    http://security.debian.org/pool/updates/main/t/tcpdump/tcpdump_3.6.2-2.8_sparc.deb
      Size/MD5 checksum:   180776 d6b4803e379f9354eb4a3f4546bdc22b

  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/<pkg>
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Version: GnuPG v1.2.4 (GNU/Linux)

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=m3dO
-----END PGP SIGNATURE-----


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