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[CLA-2003:662] Conectiva Security Announcement - ethereal
From: Conectiva Updates <secure () conectiva com br>
Date: Wed, 25 Jun 2003 17:07:17 -0300

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CONECTIVA LINUX SECURITY ANNOUNCEMENT 
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PACKAGE   : ethereal
SUMMARY   : Several vulnerabilities
DATE      : 2003-06-25 17:06:00
ID        : CLA-2003:662
RELEVANT
RELEASES  : 7.0, 8, 9

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DESCRIPTION
 Ethereal[1] is a powerful network traffic analyzer with a graphical
 usr interface (GUI).
 
 This update announcement addresses several vulnerabilities[2,3] in
 ethereal versions <= 0.9.12. These vulnerabilities can be exploited
 by an attacker who can insert crafted packets in the wire being
 monitored by ethereal or make an user open a trace file with such
 packets inside. Successful exploitation of these vulnerabilities can
 lead to denial of service conditions and/or remote execution of
 arbitrary code.
 
 The following vulnerabilities have been fixed:
 
 - Denial of Service (DoS) in the DCERPC dissector when trying to
 decode a NDR string[4];
 - Buffer overflow in the OSI dissector when decoding IPv4 or IPv6
 prefixes[5];
 - Denial of Service (DoS) in the SPNEGO dissector when parsing an
 invalid ASN.1 value[6];
 - Memory handling error in the tvb_get_nstringz0() routine when
 handling a zero-length buffer size[7];
 - Handling string vulnerabilities in the BGP, WTP, DNS, 802.11,
 ISAKMP, WSP, CLNP, ISIS and RMI dissectors[8].
 
 The Common Vulnerabilities and Exposures (CVE) project has assigned
 the names CAN-2003-04{28,29,30,31,32} to these issues, respectively.


SOLUTION
 All ethereal users should upgrade their packages. 
 
 
 REFERENCES:
 1.http://www.ethereal.com
 2.http://www.ethereal.com/appnotes/enpa-sa-00010.html
 3.http://distro2.conectiva.com.br/bugzilla/show_bug.cgi?id=8687
 4.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0428
 5.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0429
 6.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0430
 7.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0431
 8.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0432


UPDATED PACKAGES
ftp://atualizacoes.conectiva.com.br/7.0/RPMS/ethereal-0.9.13-1U70_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/7.0/SRPMS/ethereal-0.9.13-1U70_1cl.src.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/ethereal-0.9.13-1U80_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/ethereal-common-0.9.13-1U80_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/ethereal-gtk-0.9.13-1U80_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/ethereal-utils-0.9.13-1U80_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/tethereal-0.9.13-1U80_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/SRPMS/ethereal-0.9.13-1U80_1cl.src.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/ethereal-0.9.13-27097U90_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/ethereal-common-0.9.13-27097U90_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/ethereal-gtk-0.9.13-27097U90_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/ethereal-utils-0.9.13-27097U90_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/tethereal-0.9.13-27097U90_1cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/SRPMS/ethereal-0.9.13-27097U90_1cl.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 reagarding the use of apt and upgrade examples 
 can be found at http://distro.conectiva.com.br/atualizacoes/#apt?idioma=en

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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

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

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Copyright (c) 2003 Conectiva Inc.
http://www.conectiva.com

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