-----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_19c
l.src.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/devfsd-2.4.21-31301U90_19cl.i
386.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-2.4.21-31
301U90_19cl.athlon.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-enterprise-2.4.21-31
301U90_19cl.i686.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-enterprise-2.4.21-31
301U90_19cl.pentium4.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-headers-2.4.21-31301
U90_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-2.4.21-31301U
90_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 (at) papaleguas.conectiva.com (dot) br [email concealed]
unsubscribe: conectiva-updates-unsubscribe (at) papaleguas.conectiva.com (dot) br [email concealed]
-----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-----

[ reply ]