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Category:   Application (Generic)  >   Tcpdump Vendors:   Tcpdump.org
(Trustix Issues Fix) Tcpdump Boundary Checking Error in 'print-isakmp.c' Lets Remote Users Crash Tcpdump
SecurityTracker Alert ID:  1009594
SecurityTracker URL:  http://securitytracker.com/id/1009594
CVE Reference:   CVE-2004-0183, CVE-2004-0184   (Links to External Site)
Updated:  Mar 30 2004
Original Entry Date:  Mar 30 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:   Trustix has released a fix, available at:

http://http.trustix.org/pub/trustix/updates/
ftp://ftp.trustix.org/pub/trustix/updates/

The MD5sums of the packages are:

8f3a7bdd432fd9f18e999a9e2de758b9 2.1/rpms/libpcap-0.8.2-2tr.i586.rpm
0d0b2a05023114f26ed764acfe0dc2f3 2.1/rpms/tcpdump-3.8.2-2tr.i586.rpm
8483afc65ac796b485c98216f23ccf3f 2.0/rpms/libpcap-0.8.2-1tr.i586.rpm
7b7728b913e2d45f7cd8381c37acbe3d 2.0/rpms/tcpdump-3.8.2-1tr.i586.rpm
6b366e7f10eb1000bbb03f06e81dfdb4 1.5/rpms/libpcap-0.8.2-1tr.i586.rpm
81c4588e33147a04f5f2e4832123e9f4 1.5/rpms/tcpdump-3.8.2-1tr.i586.rpm

Vendor URL:  tcpdump.org/tcpdump-changes.txt (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Trustix)
Underlying OS Comments:  1.5, 2.0, and 2.1

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:  TSLSA-2004-0015 - tcpdump


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

- --------------------------------------------------------------------------
Trustix Secure Linux Security Advisory #2004-0015

Package name:      tcpdump, libpcap
Summary:           New upstream
Date:              2004-03-30
Affected versions: Trustix 1.5 2.0 2.1

- --------------------------------------------------------------------------
Package description:
  Tcpdump is a command-line tool for monitoring network traffic.  Tcpdump can
  capture and display the packet headers on a particular network interface or
  on all interfaces.  Tcpdump can display all of the packet headers, or just
  the ones that match particular criteria.

  Libpcap provides a portable framework for low-level network monitoring.
  Libpcap can provide network statistics collection, security monitoring and
  network debugging. Since almost every system vendor provides a different
  interface for packet capture, the libpcap authors created this
  system-independent API to ease in porting and to alleviate the need for
  several system-dependent packet capture modules in each application.Install
  libpcap if you need to do low-level network traffic monitoring on your
  network

Problem description:
  The new upstream version of tcpdump fixes several bugs, some security
  related. Amongst others: CAN-2004-0183 and CAN-2004-0184


Action:
  We recommend that all systems with this package installed be upgraded.
  Please note that if you do not need the functionality provided by this
  package, you may want to remove it from your system.


Location:
  All Trustix updates are available from
  <URI:http://http.trustix.org/pub/trustix/updates/>
  <URI:ftp://ftp.trustix.org/pub/trustix/updates/>


About Trustix Secure Linux:
  Trustix Secure Linux is a small Linux distribution for servers. With focus
  on security and stability, the system is painlessly kept safe and up to
  date from day one using swup, the automated software updater.


Automatic updates:
  Users of the SWUP tool can enjoy having updates automatically
  installed using 'swup --upgrade'.


Public testing:
  Most updates for Trustix are made available for public testing some time
  before release.
  If you want to contribute by testing the various packages in the
  testing tree, please feel free to share your findings on the
  tsl-discuss mailinglist.
  The testing tree is located at
  <URI:http://tsldev.trustix.org/horizon/>

  You may also use swup for public testing of updates:
  
  site {
      class = 0
      location = "http://tsldev.trustix.org/horizon/rdfs/latest.rdf"
      regexp = ".*"
  }
  

Questions?
  Check out our mailing lists:
  <URI:http://www.trustix.org/support/>


Verification:
  This advisory along with all Trustix packages are signed with the
  TSL sign key.
  This key is available from:
  <URI:http://www.trustix.org/TSL-SIGN-KEY>

  The advisory itself is available from the errata pages at
  <URI:http://www.trustix.org/errata/trustix-1.5/>,
  <URI:http://www.trustix.org/errata/trustix-2.0/> and
  <URI:http://www.trustix.org/errata/trustix-2.1/>
  or directly at
  <URI:http://www.trustix.org/errata/misc/2004/TSL-2004-0015-tcpdump.asc.txt>


MD5sums of the packages:
- --------------------------------------------------------------------------
8f3a7bdd432fd9f18e999a9e2de758b9  2.1/rpms/libpcap-0.8.2-2tr.i586.rpm
0d0b2a05023114f26ed764acfe0dc2f3  2.1/rpms/tcpdump-3.8.2-2tr.i586.rpm
8483afc65ac796b485c98216f23ccf3f  2.0/rpms/libpcap-0.8.2-1tr.i586.rpm
7b7728b913e2d45f7cd8381c37acbe3d  2.0/rpms/tcpdump-3.8.2-1tr.i586.rpm
6b366e7f10eb1000bbb03f06e81dfdb4  1.5/rpms/libpcap-0.8.2-1tr.i586.rpm
81c4588e33147a04f5f2e4832123e9f4  1.5/rpms/tcpdump-3.8.2-1tr.i586.rpm
- --------------------------------------------------------------------------


Trustix Security Team

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.2 (GNU/Linux)

iD8DBQFAaXnmi8CEzsK9IksRAp41AJ46331+mXFjc7Fe12ukdiifP3XHgwCgmRm3
e0plNv3AM20I/xx+4hooJcY=
=YsGB
-----END PGP SIGNATURE-----
_______________________________________________
tsl-announce mailing list
tsl-announce@lists.trustix.org
http://lists.trustix.org/mailman/listinfo/tsl-announce

 
 


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