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From: secure@conectiva.com.br To: conectiva-updates@papaleguas.conectiva.com.br, linuxlist@securityportal.com, lwn@lwn.net, bugtraq@securityfocus.com Subject: [CLA-2001:404] Conectiva Linux Security Announcement - xinetd Date: Tue, 19 Jun 2001 18:08:02 -0300 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -------------------------------------------------------------------------- CONECTIVA LINUX SECURITY ANNOUNCEMENT - -------------------------------------------------------------------------- PACKAGE : xinetd SUMMARY : Two security fixes for xinetd DATE : 2001-06-19 18:07:00 ID : CLA-2001:404 RELEVANT RELEASES : 6.0 - ------------------------------------------------------------------------- DESCRIPTION "xinetd" is an alternative to the inetd superserver. zen-parse reported on Bugtraq a remote buffer overflow vulnerability in xinetd that could be used by a remote attacker to execute arbitrary commands on the server with root privileges. Another vulnerability that has been corrected with this release is the umask setting, which previous versions were configuring to zero. With the umask set to zero, applications started by xinetd could inadvertently create world writable files if they did not check this setting before. The xinetd package is not used by default in Conectiva Linux 6.0, therefore only users who explicitly changed the configuration of their services in order to use xinetd will be vulnerable. SOLUTION It is recommended that all xinetd users upgrade their packages. This update will restart the service if it is already running. REFERENCES 1. http://www.securityfocus.com/bid/2826 (umask) 2. http://www.securityfocus.com/bid/2840 (buffer overflow) DIRECT DOWNLOAD LINKS TO THE UPDATED PACKAGES ftp://atualizacoes.conectiva.com.br/6.0/SRPMS/xinetd-2.1.8.9pre15-2U60_2cl.src.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/xinetd-devel-2.1.8.9pre15-2U60_2cl.i386.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/xinetd-2.1.8.9pre15-2U60_2cl.i386.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/xinetd-devel-static-2.1.8.9pre15-2U60_2cl.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-subscribe@papaleguas.conectiva.com.br unsubscribe: conectiva-updates-unsubscribe@papaleguas.conectiva.com.br -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.4 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE7L78x42jd0JmAcZARAgY8AJwKRxzYyioyIU2a79bM7pfeTuDpnACgr3I8 lG0MtuikpzkzbSPTF66+dpI= =mmQh -----END PGP SIGNATURE-----