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Category:   Application (Security)  >   Wireshark Vendors:   Wireshark.org
(Conectiva Issues Fix) Ethereal Bugs in the iSNS, SMB, and SNMP Dissectors Let Remote Users Crash Ethereal or Possibly Execute Arbitrary Code
SecurityTracker Alert ID:  1012902
SecurityTracker URL:  http://securitytracker.com/id/1012902
CVE Reference:   CVE-2004-0633, CVE-2004-0634, CVE-2004-0635   (Links to External Site)
Date:  Jan 14 2005
Impact:   Denial of service via network, Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 0.8.15 up to and including 0.10.4
Description:   Several vulnerabilities were was reported in Ethereal in the iSNS, SMB, and SNMP dissectors. A remote user can cause the Ethereal process to crash and may be able to execute arbitrary code on the target system.

The vendor reported that a remote user can send a specially crafted packet to the target system or via a network that is monitored by the target system to trigger one of several flaws. A remote user can also create a specially crafted trace file that, when played by the target user, will have the same effect.

A remote user can cause the iSNS dissector to cause Ethereal to abort in some cases (affecting versions 0.10.3 - 0.10.4), the report said [CVE: CVE-2004-0633].

It is also reported that the Ethereal process performing SMB SID snooping may crash if there is no policy name for a handle (affecting versions 0.9.15 - 0.10.4) [CVE: CVE-2004-0634].

It is also reported that a remote user can send an SNMP packet with a specially crafted or missing community string to cause the process to crash (affecting versions 0.8.15 - 0.10.4) [CVE: CVE-2004-0635].

Impact:   A remote user can cause the Ethereal process to crash.

A remote user may be able to execute arbitrary code on the target system with the privileges of the Ethereal process.

Solution:   Conectiva has released a fix.

ftp://atualizacoes.conectiva.com.br/10/SRPMS/ethereal-0.10.8-62475U10_1cl.src.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/ethereal-0.10.8-62475U10_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/ethereal-common-0.10.8-62475U10_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/ethereal-gtk-0.10.8-62475U10_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/ethereal-utils-0.10.8-62475U10_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/tethereal-0.10.8-62475U10_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/SRPMS/ethereal-0.10.8-73509U90_3cl.src.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/ethereal-0.10.8-73509U90_3cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/ethereal-common-0.10.8-73509U90_3cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/ethereal-gtk-0.10.8-73509U90_3cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/ethereal-utils-0.10.8-73509U90_3cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/tethereal-0.10.8-73509U90_3cl.i386.rpm

Vendor URL:  www.ethereal.com/appnotes/enpa-sa-00015.html (Links to External Site)
Cause:   Not specified
Underlying OS:  Linux (Conectiva)
Underlying OS Comments:  9, 10

Message History:   This archive entry is a follow-up to the message listed below.
Jul 7 2004 Ethereal Bugs in the iSNS, SMB, and SNMP Dissectors Let Remote Users Crash Ethereal or Possibly Execute Arbitrary Code



 Source Message Contents

Subject:  [Conectiva-updates] [CLA-2005:916] Conectiva Security Announcement


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

- --------------------------------------------------------------------------
CONECTIVA LINUX SECURITY ANNOUNCEMENT 
- --------------------------------------------------------------------------

PACKAGE   : ethereal
SUMMARY   : Fixes for security vulnerabilities in ethereal
DATE      : 2005-01-13 11:44:00
ID        : CLA-2005:916
RELEVANT
RELEASES  : 9, 10

- -------------------------------------------------------------------------

DESCRIPTION
 Ethereal[1] is a powerful network traffic analyzer with a graphical
 user interface (GUI).
 
 This update fixes several vulnerabilities[2,3,4] in ethereal:
 
 CAN-2004-0633[5]: The iSNS dissector for ethereal 0.10.3 through
 0.10.4 allows remote attackers to cause a denial of service (process
 abort) via an integer overflow.
 
 CAN-2004-0634[6]: The SMB SID snooping capability in ethereal 0.9.15
 to 0.10.4 allows remote attackers to cause a denial of service
 (process abort) via a handle without a policy name, which causes a
 null dereference.
 
 CAN-2004-0635[7]: The SNMP dissector in ethereal 0.8.15 through
 0.10.4 allows remote attackers to cause a denial of service (process
 abort) via a malformed request or by missing community string, which
 causes an out-of-bounds read.
 
 CAN-2004-0504[8]: ethereal 0.10.3 allows remote attackers to cause a
 denial of service (crash) via certain SIP messages between Hotsip
 servers and clients.
 
 CAN-2004-0505[9]: The AIM dissector in ethereal 0.10.3 allows remote
 attackers to cause a denial of service (assert error).
 
 CAN-2004-0506[10]: The SPNEGO dissector in ethereal 0.9.8 to 0.10.3
 allows remote attackers to cause a denial of service (abort).
 
 CAN-2004-0507[11]: Buffer overflow in the MMSE dissector for ethereal
 0.10.1 to 0.10.3 allows remote attackers to cause a denial of service
 and possibly execute arbitrary code.
 
 CAN-2004-1139[12]: Matthew Bing found a problem in DICOM dissection
 that could make Ethereal exit unexpectedly.
 
 CAN-2004-1140[13]: An invalid RTP timestamp could make Ethereal hang
 and create a large temporary file, possibly filling all available
 disk space.
 
 CAN-2004-1141[14]: The HTTP dissector could access previously-freed
 memory, making Ethereal exit unexpectedly.
 
 CAN-2004-1142[15]: Brian Caswell discovered that an improperly
 formatted SMB packet could make Ethereal hang, maximizing CPU
 utilization.


SOLUTION
 It is recommended that all ethereal users upgrade their packages.
 
 
 REFERENCES
 1.http://www.ethereal.com/
 2.http://www.ethereal.com/appnotes/enpa-sa-00014.html
 3.http://www.ethereal.com/appnotes/enpa-sa-00015.html
 4.http://www.ethereal.com/appnotes/enpa-sa-00016.html
 5.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0633
 6.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0634
 7.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0635
 8.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0504
 9.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0505
 10.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0506
 11.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0507
 12.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1139
 13.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1140
 14.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1141
 15.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1142


UPDATED PACKAGES
ftp://atualizacoes.conectiva.com.br/10/SRPMS/ethereal-0.10.8-62475U10_1cl.src.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/ethereal-0.10.8-62475U10_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/ethereal-common-0.10.8-62475U10_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/ethereal-gtk-0.10.8-62475U10_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/ethereal-utils-0.10.8-62475U10_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/10/RPMS/tethereal-0.10.8-62475U10_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/SRPMS/ethereal-0.10.8-73509U90_3cl.src.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/ethereal-0.10.8-73509U90_3cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/ethereal-common-0.10.8-73509U90_3cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/ethereal-gtk-0.10.8-73509U90_3cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/ethereal-utils-0.10.8-73509U90_3cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/tethereal-0.10.8-73509U90_3cl.i386.rpm


ADDITIONAL INSTRUCTIONS
 The apt tool can be used to perform RPM packages upgrades:

 - run:                 apt-get update
 - after that, execute: apt-get upgrade

 Detailed instructions regarding the use of apt and upgrade examples 
 can be found at http://distro.conectiva.com.br/atualizacoes/#apt?idioma=en

- -------------------------------------------------------------------------
All packages are signed with Conectiva's GPG key. The key and instructions
on how to import it can be found at 
http://distro.conectiva.com.br/seguranca/chave/?idioma=en
Instructions on how to check the signatures of the RPM packages can be
found at http://distro.conectiva.com.br/seguranca/politica/?idioma=en

- -------------------------------------------------------------------------
All our advisories and generic update instructions can be viewed at
http://distro.conectiva.com.br/atualizacoes/?idioma=en

- -------------------------------------------------------------------------
Copyright (c) 2004 Conectiva Inc.
http://www.conectiva.com

- -------------------------------------------------------------------------
subscribe: conectiva-updates-subscribe@papaleguas.conectiva.com.br
unsubscribe: conectiva-updates-unsubscribe@papaleguas.conectiva.com.br
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