-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -------------------------------------------------------------------------- CONECTIVA LINUX SECURITY ANNOUNCEMENT - -------------------------------------------------------------------------- PACKAGE : radiusd-cistron SUMMARY : Multiple vulnerabilities DATE : 2002-03-06 16:43:00 ID : CLA-2002:466 RELEVANT RELEASES : 5.0, prg graficos, ecommerce, 5.1, 6.0, 7.0 - ------------------------------------------------------------------------- DESCRIPTION Cistron RADIUS is an authentication and accounting server for terminal servers that speak the RADIUS (Remote Authentication Dial In User Service) protocol. Alan DeKok reported[1] some vulnerabilities in multiple RADIUS server implementations (including radius-cistron). radius-cistron prior to 1.6.6 was vulnerable to: - A buffer overflow in a message digest calculation[2] that could let an attacker to sucessfully run a Deny of Service (DoS) attack againt the server. If the attacker also knows the shared secret (discovering it is not a trivial task), there's a possibility to exploit this vulnerability to execute arbitrary code in the remote machine (with root privileges). - A failure to check the vendor-length of vendor-specific attributes, also possibiliting a Denial of Service attack against RADIUS servers. There's a complete advisory[3] with more information available from CERTŪ addressing these vulnerabilities. SOLUTION All radius-cistron users should upgrade. This update will automatically restart the service if it's running. REFERENCES: 1.http://online.securityfocus.com/archive/1/239943 2.http://online.securityfocus.com/bid/3530 3.http://www.cert.org/advisories/CA-2002-06.html DIRECT DOWNLOAD LINKS TO THE UPDATED PACKAGES ftp://atualizacoes.conectiva.com.br/5.0/5.0/SRPMS/radiusd-cistron-1.6.6-1U50_1cl.src.rpm ftp://atualizacoes.conectiva.com.br/5.0/5.0/i386/radiusd-cistron-1.6.6-1U50_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/5.1/5.1/SRPMS/radiusd-cistron-1.6.6-1U51_1cl.src.rpm ftp://atualizacoes.conectiva.com.br/5.1/5.1/i386/radiusd-cistron-1.6.6-1U51_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/6.0/6.0/SRPMS/radiusd-cistron-1.6.6-1U60_1cl.src.rpm ftp://atualizacoes.conectiva.com.br/6.0/6.0/RPMS/radiusd-cistron-1.6.6-1U60_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/7.0/SRPMS/radiusd-cistron-1.6.6-1U70_1cl.src.rpm ftp://atualizacoes.conectiva.com.br/7.0/7.0/RPMS/radiusd-cistron-1.6.6-1U70_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/ferramentas/ecommerce/5.0/SRPMS/radiusd-cistron-1.6.6-1U50_1cl.src.rpm ftp://atualizacoes.conectiva.com.br/ferramentas/ecommerce/5.0/i386/radiusd-cistron-1.6.6-1U50_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/ferramentas/graficas/5.0/SRPMS/radiusd-cistron-1.6.6-1U50_1cl.src.rpm ftp://atualizacoes.conectiva.com.br/ferramentas/graficas/5.0/i386/radiusd-cistron-1.6.6-1U50_1cl.i386.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 iD8DBQE8hnGP42jd0JmAcZARAv66AJ0ZCvzm39B7/2T9VlQfo3N4KzB9pACfSoH0 JjmEsJWM0cw94d2pY1Zxul0= =x5MX -----END PGP SIGNATURE-----
This archive was generated by hypermail 2b30 : Wed Mar 06 2002 - 14:31:55 PST