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Date: Mon, 7 Apr 2003 11:09:08 -0300 From: Conectiva Updates <secure@...ectiva.com.br> To: conectiva-updates@...aleguas.conectiva.com.br, lwn@....net, bugtraq@...urityfocus.com, security-alerts@...uxsecurity.com, linsec@...ts.seifried.org Subject: [CLA-2003:618] Conectiva Security Announcement - kernel -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - -------------------------------------------------------------------------- CONECTIVA LINUX SECURITY ANNOUNCEMENT - -------------------------------------------------------------------------- PACKAGE : kernel SUMMARY : Local vulnerability: ptrace DATE : 2003-04-07 11:07:00 ID : CLA-2003:618 RELEVANT RELEASES : 6.0, 7.0, 8 - ------------------------------------------------------------------------- DESCRIPTION The Linux kernel is responsible for handling the basic functions of the GNU/Linux operating system. Alan Cox published[4] a vulnerability[1] in the linux kernel found by Andrzej Szombierski that could be used by a local attacker to obtain root privileges. When a process requires a feature that a certain kernel module provides, the kernel will spawn a child process, give it root privileges and call /sbin/modprobe to load that module. A local attacker can create such a process, make it request a kernel module and wait for the child process to be spawned. Before the privilege change, the attacker can attach to this child process and insert code that will later be run with root privileges. The Common Vulnerabilities and Exposures project has assigned the name CAN-2003-0127[1] to this issue. SOLUTION It is recommended that all users upgrade their kernel packages. Please note that Conectiva Linux 7.0 has two options for the kernel upgrade, the 2.2 series and the 2.4 series. IMPORTANT: it is not possible to use apt to apply kernel updates. These packages have to be updated manually. Generic kernel update instructions can be found in our updates page[2]. REFERENCES 1.http://cve.mitre.org/cgi-bin/cvename.cgi?name=2003-0127 2.http://distro.conectiva.com.br/atualizacoes/ 3.http://www.conectiva.com.br/suporte/pr/sistema.kernel.atualizar.html 4.http://archives.neohapsis.com/archives/vulnwatch/2003-q1/0134.html UPDATED PACKAGES ftp://atualizacoes.conectiva.com.br/6.0/SRPMS/kernel-2.2.19-25U60_5cl.src.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/kernel-2.2.19-25U60_5cl.i386.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/kernel-2.2.19-25U60_5cl.i586.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/kernel-2.2.19-25U60_5cl.i686.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/kernel-BOOT-2.2.19-25U60_5cl.i386.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/kernel-doc-2.2.19-25U60_5cl.i386.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/kernel-enterprise-2.2.19-25U60_5cl.i686.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/kernel-smp-2.2.19-25U60_5cl.i386.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/kernel-headers-2.2.19-25U60_5cl.i386.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/kernel-ibcs-2.2.19-25U60_5cl.i386.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/kernel-smp-2.2.19-25U60_5cl.i586.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/kernel-smp-2.2.19-25U60_5cl.i686.rpm ftp://atualizacoes.conectiva.com.br/6.0/RPMS/kernel-source-2.2.19-25U60_5cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/SRPMS/kernel-2.2.19-25U70_5cl.src.rpm ftp://atualizacoes.conectiva.com.br/7.0/SRPMS/kernel-2.4.12-4U70_5cl.src.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/devfsd-2.4.12-4U70_5cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/kernel-2.2.19-25U70_5cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/kernel-2.2.19-25U70_5cl.i586.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/kernel-2.2.19-25U70_5cl.i686.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/kernel-2.4.12-4U70_5cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/kernel-2.4.12-4U70_5cl.i586.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/kernel-2.4.12-4U70_5cl.i686.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/kernel-BOOT-2.2.19-25U70_5cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/kernel-BOOT-2.4.12-4U70_5cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/kernel-doc-2.2.19-25U70_5cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/kernel-doc-2.4.12-4U70_5cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/kernel-enterprise-2.2.19-25U70_5cl.i686.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/kernel-enterprise-2.4.12-4U70_5cl.i686.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/kernel-headers-2.2.19-25U70_5cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/kernel-headers-2.4.12-4U70_5cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/kernel-ibcs-2.2.19-25U70_5cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/kernel-smp-2.2.19-25U70_5cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/kernel-smp-2.2.19-25U70_5cl.i586.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/kernel-smp-2.2.19-25U70_5cl.i686.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/kernel-smp-2.4.12-4U70_5cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/kernel-smp-2.4.12-4U70_5cl.i586.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/kernel-smp-2.4.12-4U70_5cl.i686.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/kernel-source-2.2.19-25U70_5cl.i386.rpm ftp://atualizacoes.conectiva.com.br/7.0/RPMS/kernel-source-2.4.12-4U70_5cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/SRPMS/kernel-2.4.19-1U80_13cl.src.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/devfsd-2.4.19-1U80_13cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/kernel-2.4.19-1U80_13cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/kernel-2.4.19-1U80_13cl.i586.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/kernel-2.4.19-1U80_13cl.i686.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/kernel-BOOT-2.4.19-1U80_13cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/kernel-doc-2.4.19-1U80_13cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/kernel-enterprise-2.4.19-1U80_13cl.i686.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/kernel-headers-2.4.19-1U80_13cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/kernel-rbc-2.4.19-1U80_13cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/kernel-smp-2.4.19-1U80_13cl.i386.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/kernel-smp-2.4.19-1U80_13cl.i586.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/kernel-smp-2.4.19-1U80_13cl.i686.rpm ftp://atualizacoes.conectiva.com.br/8/RPMS/kernel-source-2.4.19-1U80_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 - ------------------------------------------------------------------------- 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 2003 (c) Conectiva Inc. http://www.conectiva.com - ------------------------------------------------------------------------- subscribe: conectiva-updates-subscribe@...aleguas.conectiva.com.br unsubscribe: conectiva-updates-unsubscribe@...aleguas.conectiva.com.br -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE+kYaD42jd0JmAcZARAinIAJ4omcWuVixs2duhSirBajgXzZ7vLwCcCmxj QGkAE+YonoMxkDjYuYwl9aI= =bAq9 -----END PGP SIGNATURE-----
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