-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -------------------------------------------------------------------------- CONECTIVA LINUX SECURITY ANNOUNCEMENT - -------------------------------------------------------------------------- PACKAGE : wu-ftpd SUMMARY : Remote vulnerability in the wu-ftpd server DATE : 2001-11-29 12:20:00 ID : CLA-2001:442 RELEVANT RELEASES : 5.0, prg graficos, ecommerce, 5.1, 6.0, 7.0 - ------------------------------------------------------------------------- DESCRIPTION "wu-ftpd" is one of the ftp servers available in Conectiva Linux and several other linux distributions. CORE Security Technologies[1] reported[2] a vulnerability[3] in the wu-ftpd ftp server that can be exploited remotely. The problem is in the internal glob function used by wu-ftpd which allows an attacker to corrupt memory space and execute arbitrary code remotely. There is no need for an user account on the ftp server, this problem can be abused by anonymous users as well. This vulnerability was first reported[4] by Matt Power but was deemed not exploitable at that time. SOLUTION All administrators who deploy wu-ftpd should upgrade immediately. If an upgrade is not possible, then the service should be shut down, or another ftp server should be used. There is no need to restart the service after the upgrade because wu-ftpd is started from inetd. The administrator might want to, however, shut down all current connections which would still be using the vulnerable copy to avoid a possible abuse by currently connected users. REFERENCES 1. http://www.core-sdi.com 2. http://www.securityfocus.com/archive/1/242964 3. http://www.securityfocus.com/bid/3581 4. http://www.securityfocus.com/archive/82/180823 DIRECT DOWNLOAD LINKS TO THE UPDATED PACKAGES ftp://atualizacoes.conectiva.com.br/5.0/SRPMS/wu-ftpd-2.6.1-6U50_1cl.src.rpm ftp://atualizacoes.conectiva.com.br/5.0/i386/wu-ftpd-2.6.1-6U50_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/5.1/SRPMS/wu-ftpd-2.6.1-6U51_1cl.src.rpm ftp://atualizacoes.conectiva.com.br/5.1/i386/wu-ftpd-2.6.1-6U51_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/6.0/SRPMS/wu-ftpd-2.6.1-6U60_1cl.src.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/wu-ftpd-2.6.1-6U60_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/SRPMS/wu-ftpd-2.6.1-6U70_1cl.src.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/wu-ftpd-2.6.1-6U70_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/ferramentas/ecommerce/SRPMS/wu-ftpd-2.6.1-6U50_1cl.src.rpm ftp://atualizacoes.conectiva.com.br/ferramentas/ecommerce/i386/wu-ftpd-2.6.1-6U50_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/ferramentas/graficas/SRPMS/wu-ftpd-2.6.1-6U50_1cl.src.rpm ftp://atualizacoes.conectiva.com.br/ferramentas/graficas/i386/wu-ftpd-2.6.1-6U50_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 iD8DBQE8BkQ+42jd0JmAcZARApFvAKCl+ekMYKl4mUlnjYOPzmdpdRQ2WQCfZ37k B9JhTSxN7u70wdESzG+mjhQ= =+0Mk -----END PGP SIGNATURE-----
This archive was generated by hypermail 2b30 : Thu Nov 29 2001 - 11:48:27 PST