-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -------------------------------------------------------------------------- CONECTIVA LINUX SECURITY ANNOUNCEMENT - -------------------------------------------------------------------------- PACKAGE : ethereal SUMMARY : Packet handling vulnerabilities DATE : 2002-04-25 14:21:00 ID : CLA-2002:474 RELEVANT RELEASES : 5.0, 5.1, 6.0, 7.0 - ------------------------------------------------------------------------- DESCRIPTION Ethereal is a powerful network traffic analyzer with an intuitive interface. This update addresses two vulnerabilities stated in ethereal's home page: 1.SNMP and LDAP string handling[1] The PROTOS[2] test suite developed by the Oulu University Secure Programming Group found some flaws in SNMP and LDAP protocols support in ethereal. It may be possible to crash or execute arbitrary code in the ethereal's context (ethereal is usually run by root) by injecting crafted packets in the network or convincing someone to open a trace file with such packets. 2.ASN.1 zero-length g_malloc[3] Due to improper string parsing in ASN.1 routines, it is possible to crash ethereal by inserting malformed packets in the wire or by opening a trace file with such packets inside. SNMP, LDAP, COPS and Kerberos parsers use the ASN routines to handle traffic. There's also a third vulnerability reported in ethereal's home page related to zlib's double free bug, which have been addressed already by our zlib's advisory[4] some time ago. SOLUTION All ethereal users should do the upgrade. REFERENCES: 1.http://www.ethereal.com/appnotes/enpa-sa-00001.html 2.http://www.ee.oulu.fi/research/ouspg/protos 3.http://www.ethereal.com/appnotes/enpa-sa-00003.html 4.http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000469&idioma=en DIRECT DOWNLOAD LINKS TO THE UPDATED PACKAGES ftp://atualizacoes.conectiva.com.br/5.0/i386/ethereal-0.9.3-1U50_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/5.0/SRPMS/ethereal-0.9.3-1U50_1cl.src.rpm ftp://atualizacoes.conectiva.com.br/5.1/i386/ethereal-0.9.3-1U51_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/5.1/SRPMS/ethereal-0.9.3-1U51_1cl.src.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/ethereal-0.9.3-1U60_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/6.0/SRPMS/ethereal-0.9.3-1U60_1cl.src.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/ethereal-0.9.3-1U70_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/SRPMS/ethereal-0.9.3-1U70_1cl.src.rpm ADDITIONAL INSTRUCTIONS Users of Conectiva Linux version 6.0 or higher may use apt to perform upgrades of RPM packages: - add the following line to /etc/apt/sources.list if it is not there yet (you may also use linuxconf to do this): rpm [cncbr] ftp://atualizacoes.conectiva.com.br 6.0/conectiva updates (replace 6.0 with the correct version number if you are not running CL6.0) - 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 - ------------------------------------------------------------------------- subscribe: conectiva-updates-subscribeat_private unsubscribe: conectiva-updates-unsubscribeat_private -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE8yDsw42jd0JmAcZARAnwDAKCBbQlAE7hmcHK+U4xhbiIG/Uh1LgCgmUyg KaQ5vPmuwkMKPnGIJdPlwKM= =WLTd -----END PGP SIGNATURE-----
This archive was generated by hypermail 2b30 : Thu Apr 25 2002 - 10:40:53 PDT