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(Conectiva Issues Fix) Ethereal Buffer Overflows in NetFlow, EIGRP, BGP, and Other Protocol Dissectors May Let Remote Users Execute Arbitrary Code
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SecurityTracker Alert ID: 1009621 |
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SecurityTracker URL: http://securitytracker.com/id/1009621
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CVE Reference:
CAN-2004-0176, CAN-2004-0367
(Links to External Site)
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Date: Apr 1 2004
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Impact:
Denial of service via network, Execution of arbitrary code via network, User access via network
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 0.8.13 - 0.10.2
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Description:
Several vulnerabilities were reported in Ethereal. A remote user can execute arbitrary code on the target system.
The vendor reported that there are multiple vulnerabilities in Etheral, affecting the NetFlow, IGAP, EIGRP, PGM, IrDA, BGP, ISUP, and TCAP protocol dissectors [CVE: CAN-2004-0176]. Stefan Esser is credited with discovering these flaws.
A remote user can send a specially crafted packet to the target system or via a network monitored by the target system to trigger the buffer overflow. A remote user may be able to cause the target service to crash or execute arbitrary code.
It is also reported that a zero-length Presentation protocol selector can cause the target service to crash [CVE: CAN-2004-0367].
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Impact:
A remote user can cause Ethereal to crash or execute arbitrary code.
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Solution:
Conectiva has released a fix.
ftp://atualizacoes.conectiva.com.br/8/RPMS/ethereal-0.10.3-27097U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/ethereal-common-0.10.3-27097U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/ethereal-gtk-0.10.3-27097U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/ethereal-utils-0.10.3-27097U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/tethereal-0.10.3-27097U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/SRPMS/ethereal-0.10.3-27097U90_2cl.src.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/ethereal-0.10.3-27097U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/ethereal-gtk-0.10.3-27097U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/tethereal-0.10.3-27097U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/ethereal-common-0.10.3-27097U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/ethereal-utils-0.10.3-27097U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/SRPMS/ethereal-0.10.3-27097U90_2cl.src.rpm
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Vendor URL: www.ethereal.com/appnotes/enpa-sa-00013.html (Links to External Site)
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Cause:
Boundary error
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Underlying OS:
Linux (Conectiva)
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Message History:
This archive entry is a follow-up to the message listed below.
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Source Message Contents
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Date: Wed, 31 Mar 2004 17:51:53 -0300
Subject: [conectiva-updates] [CLA-2004:835] Conectiva Security Announcement - ethereal
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
- --------------------------------------------------------------------------
CONECTIVA LINUX SECURITY ANNOUNCEMENT
- --------------------------------------------------------------------------
PACKAGE : ethereal
SUMMARY : Several remote vulnerabilities
DATE : 2004-03-31 17:50:00
ID : CLA-2004:835
RELEVANT
RELEASES : 8, 9
- -------------------------------------------------------------------------
DESCRIPTION
Ethereal[1] is a powerful network traffic analyzer with a graphical
user interface (GUI).
This update fixes several vulnerabilities[2] in Ethereal:
CAN-2004-0176: Stefan Esser discovered thirteen buffer overflows in
the dissector of the NetFlow, IGAP, EIGRP, PGM, IrDA, BGP, ISUP, and
TCAP protocol dissectors[3].
CAN-2004-0365: Jonathan Heussser discovered a denial of service
vulnerability in the RADIUS protocol dissector[4].
CAN-2004-0367: A zero-length presentation protocol selector can be
exploited to cause a denial of service[5].
These vulnerabilities can be exploited by a attacker who is able to
insert crafted packets in the wire being monitored by ethereal or
make an user open a trace file with such packets inside. When reading
this data, Ethereal will crash (characterizing a denial of service
condition) or, in the case of the buffer overflow vulnerabilities,
may execute arbitrary code with the privileges of the user running it
(usually root).
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-00013.html
3.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0176
4.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0365
5.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0367
UPDATED PACKAGES
ftp://atualizacoes.conectiva.com.br/8/RPMS/ethereal-0.10.3-27097U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/ethereal-common-0.10.3-27097U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/ethereal-gtk-0.10.3-27097U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/ethereal-utils-0.10.3-27097U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/tethereal-0.10.3-27097U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/SRPMS/ethereal-0.10.3-27097U90_2cl.src.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/ethereal-0.10.3-27097U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/ethereal-gtk-0.10.3-27097U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/tethereal-0.10.3-27097U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/ethereal-common-0.10.3-27097U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/ethereal-utils-0.10.3-27097U90_2cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/SRPMS/ethereal-0.10.3-27097U90_2cl.src.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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Comment: For info see http://www.gnupg.org
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