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CONECTIVA LINUX SECURITY ANNOUNCEMENT 
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PACKAGE   : kernel
SUMMARY   : Fix for two vulnerabilities
DATE      : 2004-01-05 13:46:00
ID        : CLA-2004:799
RELEVANT
RELEASES  : 8, 9

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DESCRIPTION
 The Linux kernel is responsible for handling the basic functions of
 the GNU/Linux operating system.
 
 This announcement fixes two local vulnerabilities in the kernel
 package:
 
 1) mremap() local vulnerability (CAN-2003-0985[2])
 Paul Starzetz <ihaquer@isec.pl> from iSEC Security Research
 reported[1] another vulnerability in the Linux memory management code
 which can be used by local attackers to obtain root privileges or
 cause a denial of service condition (DoS).
 
 2) Information leak in RTC code (CAN-2003-0984[3])
 Russell King <rmk@arm.linux.org.uk> reported that real time clock
 (RTC) routines in Linux kernel 2.4.23 and earlier do not properly
 initialize their structures, which could leak kernel data to user
 space.


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 faq page[4].
 
 
 REFERENCES
 1.http://isec.pl/vulnerabilities/isec-0013-mremap.txt
 2.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0985
 3.http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0984
 4.http://www.conectiva.com.br/suporte/pr/sistema.kernel.atualizar.html


UPDATED PACKAGES
ftp://atualizacoes.conectiva.com.br/8/SRPMS/kernel-2.4.19-1U80_20cl.src.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/devfsd-2.4.19-1U80_20cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/kernel-2.4.19-1U80_20cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/kernel-2.4.19-1U80_20cl.i586.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/kernel-2.4.19-1U80_20cl.i686.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/kernel-BOOT-2.4.19-1U80_20cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/kernel-doc-2.4.19-1U80_20cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/kernel-enterprise-2.4.19-1U80_20cl.i686.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/kernel-headers-2.4.19-1U80_20cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/kernel-rbc-2.4.19-1U80_20cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/kernel-smp-2.4.19-1U80_20cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/kernel-smp-2.4.19-1U80_20cl.i586.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/kernel-smp-2.4.19-1U80_20cl.i686.rpm
ftp://atualizacoes.conectiva.com.br/8/RPMS/kernel-source-2.4.19-1U80_20cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/SRPMS/kernel24-2.4.21-31301U90_13cl.src.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/devfsd-2.4.21-31301U90_13cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-2.4.21-31301U90_13cl.athlon.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-2.4.21-31301U90_13cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-2.4.21-31301U90_13cl.i586.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-2.4.21-31301U90_13cl.i686.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-2.4.21-31301U90_13cl.pentium4.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-BOOT-2.4.21-31301U90_13cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-doc-2.4.21-31301U90_13cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-enterprise-2.4.21-31301U90_13cl.athlon.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-enterprise-2.4.21-31301U90_13cl.i686.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-enterprise-2.4.21-31301U90_13cl.pentium4.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-rbc-2.4.21-31301U90_13cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-headers-2.4.21-31301U90_13cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-smp-2.4.21-31301U90_13cl.athlon.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-smp-2.4.21-31301U90_13cl.i386.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-smp-2.4.21-31301U90_13cl.i586.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-smp-2.4.21-31301U90_13cl.i686.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-smp-2.4.21-31301U90_13cl.pentium4.rpm
ftp://atualizacoes.conectiva.com.br/9/RPMS/kernel24-source-2.4.21-31301U90_13cl.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 reagarding the use of apt and upgrade examples 
 can be found at http://distro.conectiva.com.br/atualizacoes/#apt?idioma=en

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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

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All our advisories and generic update instructions can be viewed at
http://distro.conectiva.com.br/atualizacoes/?idioma=en

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Copyright (c) 2003 Conectiva Inc.
http://www.conectiva.com

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