-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -------------------------------------------------------------------------- CONECTIVA LINUX SECURITY ANNOUNCEMENT - -------------------------------------------------------------------------- PACKAGE : kernel SUMMARY : Fix for kernel vulnerability DATE : 2004-09-27 11:26:00 ID : CLA-2004:869 RELEVANT RELEASES : 9 - ------------------------------------------------------------------------- DESCRIPTION The Linux kernel is responsible for handling the basic functions of the GNU/Linux operating system. This announcement fixes a missing[1] Discretionary Access Control (DAC) check in the chown system call that allowed a local user to change the group ownership of arbitrary files to a group that he or she belongs to, leading to a privileges escalation vulnerability. SOLUTION It is recommended that all Conectiva Linux users upgrade the kernel package. IMPORTANT: exercise caution and preparation when upgrading the kernel, since it will require a reboot after the new packages are installed. In particular, Conectiva Linux 9 will most likely require an initrd file (which is automatically created in the /boot directory after the new packages are installed). Generic kernel update instructions can be obtained in the manuals and in our updates page[2]. More detailed instructions are also available in Portuguese at our Moin[3] page. REFERENCES 1.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0497 2.https://moin.conectiva.com.br/UpdatingKernelPackages 3.http://www.conectiva.com.br/suporte/pr/sistema.kernel.atualizar.html UPDATED PACKAGES ftp://atualizacoes.conectiva.com.br/9/SRPMS/kernel24-2.4.21-31301U90_19cl.src.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/devfsd-2.4.21-31301U90_19cl.i386.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-2.4.21-31301U90_19cl.athlon.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-2.4.21-31301U90_19cl.i386.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-2.4.21-31301U90_19cl.i586.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-2.4.21-31301U90_19cl.i686.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-2.4.21-31301U90_19cl.pentium4.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-BOOT-2.4.21-31301U90_19cl.i386.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-doc-2.4.21-31301U90_19cl.i386.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-enterprise-2.4.21-31301U90_19cl.athlon.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-enterprise-2.4.21-31301U90_19cl.i686.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-enterprise-2.4.21-31301U90_19cl.pentium4.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-headers-2.4.21-31301U90_19cl.i386.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-rbc-2.4.21-31301U90_19cl.i386.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-smp-2.4.21-31301U90_19cl.athlon.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-smp-2.4.21-31301U90_19cl.i386.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-smp-2.4.21-31301U90_19cl.i586.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-smp-2.4.21-31301U90_19cl.i686.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-smp-2.4.21-31301U90_19cl.pentium4.rpm ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-source-2.4.21-31301U90_19cl.i386.rpm ADDITIONAL INSTRUCTIONS The apt tool can be used to perform RPM packages upgrades: - run: apt-get update - after that, execute: apt-get upgrade Detailed instructions regarding 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 - ------------------------------------------------------------------------- Copyright (c) 2004 Conectiva Inc. http://www.conectiva.com - ------------------------------------------------------------------------- subscribe: conectiva-updates-subscribe@xxxxxxxxxxxxxxxxxxxxxxxxxxx unsubscribe: conectiva-updates-unsubscribe@xxxxxxxxxxxxxxxxxxxxxxxxxxx -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQFBWCM+42jd0JmAcZARAm5OAJ4wrfJMkr+qdT7nKf/Gb2ZKw5MPJgCg5meS ebwiU+4/R0qNw9EpS7zRuPc= =jrtI -----END PGP SIGNATURE-----
