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Date: Wed, 16 Apr 2003 16:05:06 -0300 From: Conectiva Updates <secure@...ectiva.com.br> To: conectiva-updates@...aleguas.conectiva.com.br, lwn@....net, bugtraq@...urityfocus.com, security-alerts@...uxsecurity.com, linsec@...ts.seifried.org Subject: [CLA-2003:627] Conectiva Security Announcement - ethereal -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -------------------------------------------------------------------------- CONECTIVA LINUX SECURITY ANNOUNCEMENT - -------------------------------------------------------------------------- PACKAGE : ethereal SUMMARY : Several vulnerabilities DATE : 2003-04-16 16:03:00 ID : CLA-2003:627 RELEVANT RELEASES : 6.0, 7.0, 8 - ------------------------------------------------------------------------- DESCRIPTION Ethereal is a powerful network traffic analyzer with an intuitive interface. This update addresses the problems listed below. All these vulnerabilities can be exploited by exposing the Ethereal program to specially created network traffic, be it by sniffing a live network or reading a capture file. The impact varies from a denial of service to arbitrary command execution with the same privileges as the user who is running Ethereal: - buffer overflow in the ISIS protocol dissector[2]; - denial of service in the BGP protocol dissector[3], reported by Silvio Cesare. Ethereal can enter an infinite loop when trying to process a malformed message; - several vulnerabilities[3] in the LMP, PPP and TDS protocol dissectors; - format string vulnerability[4] in the SOCKS protocol dissector, reported by Georgi Guninski; - buffer overflow vulnerability[4] in the NTLMSSP protocol dissector. SOLUTION It is recommended that all Ethereal users upgrade their packages. It is also possible to bypass these specific vulnerabilities by deactivating the vulnerable protocol dissectors. This can be done via the "Edit->Protocols" menu. REFERENCES 1. http://www.ethereal.com 2. http://www.ethereal.com/appnotes/enpa-sa-00006.html 3. http://www.ethereal.com/appnotes/enpa-sa-00007.html 4. http://www.ethereal.com/appnotes/enpa-sa-00008.html UPDATED PACKAGES ftp://atualizacoes.conectiva.com.br/6.0/SRPMS/ethereal-0.9.11-1U60_1cl.src.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/ethereal-0.9.11-1U60_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/SRPMS/ethereal-0.9.11-1U70_1cl.src.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/ethereal-0.9.11-1U70_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/SRPMS/ethereal-0.9.11-1U80_1cl.src.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/ethereal-0.9.11-1U80_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/ethereal-common-0.9.11-1U80_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/ethereal-gtk-0.9.11-1U80_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/ethereal-utils-0.9.11-1U80_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/tethereal-0.9.11-1U80_1cl.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 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 - ------------------------------------------------------------------------- subscribe: conectiva-updates-subscribe@...aleguas.conectiva.com.br unsubscribe: conectiva-updates-unsubscribe@...aleguas.conectiva.com.br -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD4DBQE+nalh42jd0JmAcZARAtQuAJjAuNLWpTWZpbvrBRLfuY2Vq+BqAJwO7vLE 13Hwk3XxPaVF8IkOgBpAlw== =Q+0r -----END PGP SIGNATURE-----
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