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.
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
- ------------------------------------------------------------------------
-
Copyright (c) 2003 Conectiva Inc.
http://www.conectiva.com
Hash: SHA1
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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.i3
86.rpm
ftp://atualizacoes.conectiva.com.br/7.0/SRPMS/ethereal-0.9.13-1U70_1cl.s
rc.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_1
cl.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_1c
l.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/tethereal-0.9.13-1U80_1cl.i38
6.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-0.9.13-27097U
90_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-0.9.13-27097U9
0_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
- ------------------------------------------------------------------------
-
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