-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -------------------------------------------------------------------------- CONECTIVA LINUX SECURITY ANNOUNCEMENT - -------------------------------------------------------------------------- PACKAGE : sendmail SUMMARY : Local vulnerability DATE : 2002-10-16 15:49:00 ID : CLA-2002:532 RELEVANT RELEASES : 6.0, 7.0, 8 - ------------------------------------------------------------------------- DESCRIPTION Sendmail is a widely used Mail Transfer Agent (MTA). "smrsh" is an application intended as a replacement for the sh shell for use with Sendmail. It imposes some restrictions to what programs can be executed when parsing ~/.forward and system wide mail aliases. Zen-parse and Pedram Amini found two ways[1] to exploit smrsh in order to make it execute any program on the system. The first one is by inserting specially formatted commands in the .forward file located in the user's home directory. The second one is by directly calling smrsh with special parameters. By exploiting this vulnerability, users who have no shell account or are not allowed to execute some programs can use smrsh to bypass such restrictions. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2002-1165 to this issue[2]. SOLUTION All sendmail users should upgrade. REFERENCES: 1.http://www.sendmail.org/smrsh.adv.txt 2.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-1165 DIRECT DOWNLOAD LINKS TO THE UPDATED PACKAGES ftp://atualizacoes.conectiva.com.br/6.0/RPMS/sendmail-8.11.6-1U60_2cl.i386.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/sendmail-cf-8.11.6-1U60_2cl.i386.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/sendmail-doc-8.11.6-1U60_2cl.i386.rpm ftp://atualizacoes.conectiva.com.br/6.0/SRPMS/sendmail-8.11.6-1U60_2cl.src.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/sendmail-8.11.6-1U70_2cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/sendmail-cf-8.11.6-1U70_2cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/sendmail-doc-8.11.6-1U70_2cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/SRPMS/sendmail-8.11.6-1U70_2cl.src.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/sendmail-8.11.6-2U80_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/sendmail-cf-8.11.6-2U80_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/sendmail-doc-8.11.6-2U80_1cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/SRPMS/sendmail-8.11.6-2U80_1cl.src.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 iD8DBQE9racN42jd0JmAcZARAktnAKDferWuXLqHuCmNNVcO4OOrBB3VoQCcDr8t Al+K1yh074tp3SIMO0rl1xM= =OS1v -----END PGP SIGNATURE-----
This archive was generated by hypermail 2b30 : Wed Oct 16 2002 - 17:56:28 PDT