-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -------------------------------------------------------------------------- CONECTIVA LINUX SECURITY ANNOUNCEMENT - -------------------------------------------------------------------------- PACKAGE : zebra SUMMARY : Fix for denial of service vulnerabilities DATE : 2003-11-20 11:31:00 ID : CLA-2003:786 RELEVANT RELEASES : 9 - ------------------------------------------------------------------------- DESCRIPTION Zebra[1] is a multi-server routing software package which provides TCP/IP based routing protocols also with IPv6 support such as RIP, OSPF, BGP and so on. This update fixes the following vulnerabilities: 1) Denial of service via telnet CLI interface (CAN-2003-0795)[2][3] Remote attackers can cause a denial of service via a malformed telnet command to the telnet CLI port. 2) Denial of service via netlink messages (CAN-2003-0858)[4] Local users to cause a denial of service by sending spoofed messages to zebra as other users via the kernel netlink interface. SOLUTION It is recommended that all users of the zebra package update their packages. After the update, the service will be automatically restarted if necessary. REFERENCES 1. http://www.zebra.org/ 2. http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0795 3. http://marc.theaimsgroup.com/?l=bugtraq&m=106883387304266&w=2 4. http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0858 UPDATED PACKAGES ftp://atualizacoes.conectiva.com.br/9/SRPMS/zebra-0.93b-27301U90_1cl.src.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/zebra-0.93b-27301U90_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@papaleguas.conectiva.com.br unsubscribe: conectiva-updates-unsubscribe@papaleguas.conectiva.com.br -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE/vMJ642jd0JmAcZARAnraAJ0aPIOTMI3oZ7RqfH71mIs3x1ycmwCfcEL5 3WNHrxBpSZ10tde9PFh5K0c= =hFsJ -----END PGP SIGNATURE-----
