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Date: Tue, 5 Dec 2000 18:16:40 -0200 To: lwn@lwn.net, bugtraq@securityfocus.com, security-alert@linuxsecurity.com, Subject: [CLA-2000:350] Conectiva Linux Security Announcement - bash From: secure@conectiva.com.br -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - ----------------------------------------------------------------------- CONECTIVA LINUX SECURITY ANNOUNCEMENT - ----------------------------------------------------------------------- PACKAGE : bash SUMMARY : Insecure temporary file creation in << redirects DATE : 2000-12-05 18:14:00 ID : CLA-2000:350 RELEVANT RELEASES : 4.0, 4.0es, 4.1, 4.2, 5.0, prg gráficos, ecommerce, 5.1, 6.0 - ---------------------------------------------------------------------- DESCRIPTION Bash is the default shell used in a standard Conectiva Linux installation. There is a vulnerability regarding the use of "<<" redirectors. If used, the shell creates a temporary file in /tmp with a predictable filename (the only variant is the PID). Additionally, it was not being opened exclusively. This can be used by an attacker to overwrite arbitrary files in the system. At least one initialization script (rc.sysinit) uses "<<", and it is run as root at boot time. SOLUTION All users should upgrade immediately. DIRECT DOWNLOAD LINKS TO THE UPDATED PACKAGES ftp://atualizacoes.conectiva.com.br/4.0/SRPMS/bash-1.14.7-24cl.src.rpm ftp://atualizacoes.conectiva.com.br/4.0/i386/bash-1.14.7-24cl.i386.rpm ftp://atualizacoes.conectiva.com.br/4.0es/SRPMS/bash-1.14.7-24cl.src.rpm ftp://atualizacoes.conectiva.com.br/4.0es/i386/bash-1.14.7-24cl.i386.rpm ftp://atualizacoes.conectiva.com.br/4.1/SRPMS/bash-1.14.7-24cl.src.rpm ftp://atualizacoes.conectiva.com.br/4.1/i386/bash-1.14.7-24cl.i386.rpm ftp://atualizacoes.conectiva.com.br/4.2/SRPMS/bash-1.14.7-24cl.src.rpm ftp://atualizacoes.conectiva.com.br/4.2/i386/bash-1.14.7-24cl.i386.rpm ftp://atualizacoes.conectiva.com.br/5.0/SRPMS/bash-1.14.7-26cl.src.rpm ftp://atualizacoes.conectiva.com.br/5.0/i386/bash-1.14.7-26cl.i386.rpm ftp://atualizacoes.conectiva.com.br/5.1/SRPMS/bash-1.14.7-29cl.src.rpm ftp://atualizacoes.conectiva.com.br/5.1/i386/bash-1.14.7-29cl.i386.rpm ftp://atualizacoes.conectiva.com.br/6.0/SRPMS/bash1-1.14.7-31cl.src.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/bash1-1.14.7-31cl.i386.rpm ftp://atualizacoes.conectiva.com.br/ferramentas/ecommerce/SRPMS/bash-1.14.7-26cl.src.rpm ftp://atualizacoes.conectiva.com.br/ferramentas/ecommerce/i386/bash-1.14.7-26cl.i386.rpm ftp://atualizacoes.conectiva.com.br/ferramentas/graficas/SRPMS/bash-1.14.7-26cl.src.rpm ftp://atualizacoes.conectiva.com.br/ferramentas/graficas/i386/bash-1.14.7-26cl.i386.rpm ADDITIONAL INSTRUCTIONS Users of Conectiva Linux version 6.0 or higher may use apt to perform upgrades: - 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 - 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 can be obtained at http://www.conectiva.com.br/contato - ----------------------------------------------------------------------- All our advisories and generic update instructions can be viewed at http://www.conectiva.com.br/suporte/atualizacoes - ---------------------------------------------------------------------- subscribe: atualizacoes-anuncio-subscribe@papaleguas.conectiva.com.br unsubscribe: atualizacoes-anuncio-unsubscribe@papaleguas.conectiva.com.br -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.4 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE6LU0m42jd0JmAcZARAs1EAKCbGKd8IyFKg9XpjOHLsMVtXdMoEgCgsOfA eNMS/x0AvM8MgRJlCDjdJ3g= =Y56B -----END PGP SIGNATURE-----