Conectiva Linux Advisory: ethereal

CONECTIVA LINUX SECURITY ANNOUNCEMENT

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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

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) 2003 Conectiva Inc.
http://www.conectiva.com