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Category:   Application (Generic)  >   Tcpdump Vendors:   Tcpdump.org
(Mandrake Issues Fix) Tcpdump Can Be Crashed By a Remote User Sending a Malicious ISAKMP Packet
SecurityTracker Alert ID:  1008863
SecurityTracker URL:  http://securitytracker.com/id/1008863
CVE Reference:   CAN-2003-0989, CAN-2004-0057   (Links to External Site)
Date:  Jan 27 2004
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 3.8.1 and prior versions
Description:   Several vulnerabilities were reported in tcpdump in the processing of ISAKMP packets. A remote user can cause tcmpdump to crash or to enter an infinite loop.

It is reported that the rawprint() function in print-isakmp.c fails to validate its input arguments [CVE: CAN-2004-0057]. A remote user can send a specially crafted ISAKMP packet to cause the tcpdump process to crash. Red Hat credits Jonathan Heusser with discovering this flaw. Version 3.8.1 and prior versions are affected.

It is also reported that versions prior to 3.8.1 contain flaws that allow a remote user to force tcpdump to enter an infinite loop [CVE: CAN-2003-0989]. According to Red Hat, George Bakos discovered these flaws.
Impact:   A remote user can cause the tcpdump process to crash or to enter an endless loop.
Solution:   Mandrake has released a fix.

Corporate Server 2.1:
c9c3cb66d49d3c61c09db1df364309aa corporate/2.1/RPMS/tcpdump-3.7.2-2.1.C21mdk.i586.rpm
a0731e1d0f8bb67e27796486ee0ac6de corporate/2.1/SRPMS/tcpdump-3.7.2-2.1.C21mdk.src.rpm

Corporate Server 2.1/x86_64:
3eba37e4c75f54916c3c15b126710c43 x86_64/corporate/2.1/RPMS/tcpdump-3.7.2-2.1.C21mdk.x86_64.rpm
a0731e1d0f8bb67e27796486ee0ac6de x86_64/corporate/2.1/SRPMS/tcpdump-3.7.2-2.1.C21mdk.src.rpm

Mandrake Linux 9.1:
aa337b3beb1371a5ceace20db36c5dfa 9.1/RPMS/tcpdump-3.7.2-2.1.91mdk.i586.rpm
99e8f3cb2c6cc748ca8c8d24ab555029 9.1/SRPMS/tcpdump-3.7.2-2.1.91mdk.src.rpm

Mandrake Linux 9.1/PPC:
df878fa0b993bcc53cb852a4b3a6b0bb ppc/9.1/RPMS/tcpdump-3.7.2-2.1.91mdk.ppc.rpm
99e8f3cb2c6cc748ca8c8d24ab555029 ppc/9.1/SRPMS/tcpdump-3.7.2-2.1.91mdk.src.rpm

Mandrake Linux 9.2:
595518640b2291ce10e26b943debf84b 9.2/RPMS/tcpdump-3.7.2-2.1.92mdk.i586.rpm
8e3520db919980c762c7acce742f9831 9.2/SRPMS/tcpdump-3.7.2-2.1.92mdk.src.rpm

Mandrake Linux 9.2/AMD64:
efd0e0b8f9796b3ba98d3da63d5b38c2 amd64/9.2/RPMS/tcpdump-3.7.2-2.1.92mdk.amd64.rpm
8e3520db919980c762c7acce742f9831 amd64/9.2/SRPMS/tcpdump-3.7.2-2.1.92mdk.src.rpm

Multi Network Firewall 8.2:
3eaac937cfc3d2390a2eda8dd431fc56 mnf8.2/RPMS/tcpdump-3.7.2-2.1.M82mdk.i586.rpm
a33365b5a8d47668764615ec6713869f mnf8.2/SRPMS/tcpdump-3.7.2-2.1.M82mdk.src.rpm
Vendor URL:  cvs.tcpdump.org/cgi-bin/cvsweb/tcpdump/print-isakmp.c (Links to External Site)
Cause:   Boundary error, Input validation error, State error
Underlying OS:   Linux (Mandriva/Mandrake)

Message History:   This archive entry is a follow-up to the message listed below.
Jan 14 2004 Tcpdump Can Be Crashed By a Remote User Sending a Malicious ISAKMP Packet


 Source Message Contents
Date:  27 Jan 2004 01:03:39 -0000
Subject:  MDKSA-2004:008 - Updated tcpdump packages fix several vulnerabilities


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

 _______________________________________________________________________

                Mandrake Linux Security Update Advisory
 _______________________________________________________________________

 Package name:           tcpdump
 Advisory ID:            MDKSA-2004:008
 Date:                   January 26th, 2004

 Affected versions:	 9.1, 9.2, Corporate Server 2.1,
			 Multi Network Firewall 8.2
 ______________________________________________________________________

 Problem Description:

 A number of vulnerabilities were discovered in tcpdump versions prior
 to 3.8.1 that, if fed a maliciously crafted packet, could be exploited
 to crash tcpdump or potentially execute arbitrary code with the
 privileges of the user running tcpdump.  These vulnerabilities include:
 
 An infinite loop and memory consumption processing L2TP packets
 (CAN-2003-1029).
 
 Infinite loops in processing ISAKMP packets (CAN-2003-0989,
 CAN-2004-0057).
 
 A segmentation fault caused by a RADIUS attribute with a large length
 value (CAN-2004-0055).
 
 The updated packages are patched to correct these problem.
 _______________________________________________________________________

 References:

  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0989
  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-1029
  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0055
  http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0057
 ______________________________________________________________________

 Updated Packages:
  
 Corporate Server 2.1:
 c9c3cb66d49d3c61c09db1df364309aa  corporate/2.1/RPMS/tcpdump-3.7.2-2.1.C21mdk.i586.rpm
 a0731e1d0f8bb67e27796486ee0ac6de  corporate/2.1/SRPMS/tcpdump-3.7.2-2.1.C21mdk.src.rpm

 Corporate Server 2.1/x86_64:
 3eba37e4c75f54916c3c15b126710c43  x86_64/corporate/2.1/RPMS/tcpdump-3.7.2-2.1.C21mdk.x86_64.rpm
 a0731e1d0f8bb67e27796486ee0ac6de  x86_64/corporate/2.1/SRPMS/tcpdump-3.7.2-2.1.C21mdk.src.rpm

 Mandrake Linux 9.1:
 aa337b3beb1371a5ceace20db36c5dfa  9.1/RPMS/tcpdump-3.7.2-2.1.91mdk.i586.rpm
 99e8f3cb2c6cc748ca8c8d24ab555029  9.1/SRPMS/tcpdump-3.7.2-2.1.91mdk.src.rpm

 Mandrake Linux 9.1/PPC:
 df878fa0b993bcc53cb852a4b3a6b0bb  ppc/9.1/RPMS/tcpdump-3.7.2-2.1.91mdk.ppc.rpm
 99e8f3cb2c6cc748ca8c8d24ab555029  ppc/9.1/SRPMS/tcpdump-3.7.2-2.1.91mdk.src.rpm

 Mandrake Linux 9.2:
 595518640b2291ce10e26b943debf84b  9.2/RPMS/tcpdump-3.7.2-2.1.92mdk.i586.rpm
 8e3520db919980c762c7acce742f9831  9.2/SRPMS/tcpdump-3.7.2-2.1.92mdk.src.rpm

 Mandrake Linux 9.2/AMD64:
 efd0e0b8f9796b3ba98d3da63d5b38c2  amd64/9.2/RPMS/tcpdump-3.7.2-2.1.92mdk.amd64.rpm
 8e3520db919980c762c7acce742f9831  amd64/9.2/SRPMS/tcpdump-3.7.2-2.1.92mdk.src.rpm

 Multi Network Firewall 8.2:
 3eaac937cfc3d2390a2eda8dd431fc56  mnf8.2/RPMS/tcpdump-3.7.2-2.1.M82mdk.i586.rpm
 a33365b5a8d47668764615ec6713869f  mnf8.2/SRPMS/tcpdump-3.7.2-2.1.M82mdk.src.rpm
 _______________________________________________________________________

 To upgrade automatically use MandrakeUpdate or urpmi.  The verification
 of md5 checksums and GPG signatures is performed automatically for you.

 A list of FTP mirrors can be obtained from:

  http://www.mandrakesecure.net/en/ftp.php

 All packages are signed by MandrakeSoft for security.  You can obtain
 the GPG public key of the Mandrake Linux Security Team by executing:

  gpg --recv-keys --keyserver www.mandrakesecure.net 0x22458A98

 Please be aware that sometimes it takes the mirrors a few hours to
 update.

 You can view other update advisories for Mandrake Linux at:

  http://www.mandrakesecure.net/en/advisories/

 MandrakeSoft has several security-related mailing list services that
 anyone can subscribe to.  Information on these lists can be obtained by
 visiting:

  http://www.mandrakesecure.net/en/mlist.php

 If you want to report vulnerabilities, please contact

  security_linux-mandrake.com

 Type Bits/KeyID     Date       User ID
 pub  1024D/22458A98 2000-07-10 Linux Mandrake Security Team
  <security linux-mandrake.com>
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