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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2013.0357 Important: kernel security update 12 March 2013 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel Publisher: Red Hat Operating System: Red Hat Enterprise Linux WS/Desktop 5 Impact/Access: Increased Privileges -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2013-0871 CVE-2013-0268 Reference: ESB-2013.0286 ESB-2013.0283 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2013-0621.html Comment: This advisory references vulnerabilities in the Linux kernel that also affect distributions other than Red Hat. It is recommended that administrators running Linux check for an updated version of the kernel for their system. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security update Advisory ID: RHSA-2013:0621-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-0621.html Issue date: 2013-03-11 CVE Names: CVE-2013-0268 CVE-2013-0871 ===================================================================== 1. Summary: Updated kernel packages that fix two security issues are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux (v. 5 server) - i386, ia64, noarch, ppc, s390x, x86_64 Red Hat Enterprise Linux Desktop (v. 5 client) - i386, noarch, x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. This update fixes the following security issues: * A flaw was found in the way file permission checks for the "/dev/cpu/[x]/msr" files were performed in restricted root environments (for example, when using a capability-based security model). A local user with the ability to write to these files could use this flaw to escalate their privileges to kernel level, for example, by writing to the SYSENTER_EIP_MSR register. (CVE-2013-0268, Important) * A race condition was found in the way the Linux kernel's ptrace implementation handled PTRACE_SETREGS requests when the debuggee was woken due to a SIGKILL signal instead of being stopped. A local, unprivileged user could use this flaw to escalate their privileges. (CVE-2013-0871, Important) Users should upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect. 4. Solution: Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258 To install kernel packages manually, use "rpm -ivh [package]". Do not use "rpm -Uvh" as that will remove the running kernel binaries from your system. You may use "rpm -e" to remove old kernels after determining that the new kernel functions properly on your system. 5. Bugs fixed (http://bugzilla.redhat.com/): 908693 - CVE-2013-0268 kernel: x86/msr: /dev/cpu/*/msr local privilege escalation 911937 - CVE-2013-0871 kernel: race condition with PTRACE_SETREGS 6. Package List: Red Hat Enterprise Linux Desktop (v. 5 client): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/kernel-2.6.18-348.3.1.el5.src.rpm i386: kernel-2.6.18-348.3.1.el5.i686.rpm kernel-PAE-2.6.18-348.3.1.el5.i686.rpm kernel-PAE-debuginfo-2.6.18-348.3.1.el5.i686.rpm kernel-PAE-devel-2.6.18-348.3.1.el5.i686.rpm kernel-debug-2.6.18-348.3.1.el5.i686.rpm kernel-debug-debuginfo-2.6.18-348.3.1.el5.i686.rpm kernel-debug-devel-2.6.18-348.3.1.el5.i686.rpm kernel-debuginfo-2.6.18-348.3.1.el5.i686.rpm kernel-debuginfo-common-2.6.18-348.3.1.el5.i686.rpm kernel-devel-2.6.18-348.3.1.el5.i686.rpm kernel-headers-2.6.18-348.3.1.el5.i386.rpm kernel-xen-2.6.18-348.3.1.el5.i686.rpm kernel-xen-debuginfo-2.6.18-348.3.1.el5.i686.rpm kernel-xen-devel-2.6.18-348.3.1.el5.i686.rpm noarch: kernel-doc-2.6.18-348.3.1.el5.noarch.rpm x86_64: kernel-2.6.18-348.3.1.el5.x86_64.rpm kernel-debug-2.6.18-348.3.1.el5.x86_64.rpm kernel-debug-debuginfo-2.6.18-348.3.1.el5.x86_64.rpm kernel-debug-devel-2.6.18-348.3.1.el5.x86_64.rpm kernel-debuginfo-2.6.18-348.3.1.el5.x86_64.rpm kernel-debuginfo-common-2.6.18-348.3.1.el5.x86_64.rpm kernel-devel-2.6.18-348.3.1.el5.x86_64.rpm kernel-headers-2.6.18-348.3.1.el5.x86_64.rpm kernel-xen-2.6.18-348.3.1.el5.x86_64.rpm kernel-xen-debuginfo-2.6.18-348.3.1.el5.x86_64.rpm kernel-xen-devel-2.6.18-348.3.1.el5.x86_64.rpm Red Hat Enterprise Linux (v. 5 server): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/kernel-2.6.18-348.3.1.el5.src.rpm i386: kernel-2.6.18-348.3.1.el5.i686.rpm kernel-PAE-2.6.18-348.3.1.el5.i686.rpm kernel-PAE-debuginfo-2.6.18-348.3.1.el5.i686.rpm kernel-PAE-devel-2.6.18-348.3.1.el5.i686.rpm kernel-debug-2.6.18-348.3.1.el5.i686.rpm kernel-debug-debuginfo-2.6.18-348.3.1.el5.i686.rpm kernel-debug-devel-2.6.18-348.3.1.el5.i686.rpm kernel-debuginfo-2.6.18-348.3.1.el5.i686.rpm kernel-debuginfo-common-2.6.18-348.3.1.el5.i686.rpm kernel-devel-2.6.18-348.3.1.el5.i686.rpm kernel-headers-2.6.18-348.3.1.el5.i386.rpm kernel-xen-2.6.18-348.3.1.el5.i686.rpm kernel-xen-debuginfo-2.6.18-348.3.1.el5.i686.rpm kernel-xen-devel-2.6.18-348.3.1.el5.i686.rpm ia64: kernel-2.6.18-348.3.1.el5.ia64.rpm kernel-debug-2.6.18-348.3.1.el5.ia64.rpm kernel-debug-debuginfo-2.6.18-348.3.1.el5.ia64.rpm kernel-debug-devel-2.6.18-348.3.1.el5.ia64.rpm kernel-debuginfo-2.6.18-348.3.1.el5.ia64.rpm kernel-debuginfo-common-2.6.18-348.3.1.el5.ia64.rpm kernel-devel-2.6.18-348.3.1.el5.ia64.rpm kernel-headers-2.6.18-348.3.1.el5.ia64.rpm kernel-xen-2.6.18-348.3.1.el5.ia64.rpm kernel-xen-debuginfo-2.6.18-348.3.1.el5.ia64.rpm kernel-xen-devel-2.6.18-348.3.1.el5.ia64.rpm noarch: kernel-doc-2.6.18-348.3.1.el5.noarch.rpm ppc: kernel-2.6.18-348.3.1.el5.ppc64.rpm kernel-debug-2.6.18-348.3.1.el5.ppc64.rpm kernel-debug-debuginfo-2.6.18-348.3.1.el5.ppc64.rpm kernel-debug-devel-2.6.18-348.3.1.el5.ppc64.rpm kernel-debuginfo-2.6.18-348.3.1.el5.ppc64.rpm kernel-debuginfo-common-2.6.18-348.3.1.el5.ppc64.rpm kernel-devel-2.6.18-348.3.1.el5.ppc64.rpm kernel-headers-2.6.18-348.3.1.el5.ppc.rpm kernel-headers-2.6.18-348.3.1.el5.ppc64.rpm kernel-kdump-2.6.18-348.3.1.el5.ppc64.rpm kernel-kdump-debuginfo-2.6.18-348.3.1.el5.ppc64.rpm kernel-kdump-devel-2.6.18-348.3.1.el5.ppc64.rpm s390x: kernel-2.6.18-348.3.1.el5.s390x.rpm kernel-debug-2.6.18-348.3.1.el5.s390x.rpm kernel-debug-debuginfo-2.6.18-348.3.1.el5.s390x.rpm kernel-debug-devel-2.6.18-348.3.1.el5.s390x.rpm kernel-debuginfo-2.6.18-348.3.1.el5.s390x.rpm kernel-debuginfo-common-2.6.18-348.3.1.el5.s390x.rpm kernel-devel-2.6.18-348.3.1.el5.s390x.rpm kernel-headers-2.6.18-348.3.1.el5.s390x.rpm kernel-kdump-2.6.18-348.3.1.el5.s390x.rpm kernel-kdump-debuginfo-2.6.18-348.3.1.el5.s390x.rpm kernel-kdump-devel-2.6.18-348.3.1.el5.s390x.rpm x86_64: kernel-2.6.18-348.3.1.el5.x86_64.rpm kernel-debug-2.6.18-348.3.1.el5.x86_64.rpm kernel-debug-debuginfo-2.6.18-348.3.1.el5.x86_64.rpm kernel-debug-devel-2.6.18-348.3.1.el5.x86_64.rpm kernel-debuginfo-2.6.18-348.3.1.el5.x86_64.rpm kernel-debuginfo-common-2.6.18-348.3.1.el5.x86_64.rpm kernel-devel-2.6.18-348.3.1.el5.x86_64.rpm kernel-headers-2.6.18-348.3.1.el5.x86_64.rpm kernel-xen-2.6.18-348.3.1.el5.x86_64.rpm kernel-xen-debuginfo-2.6.18-348.3.1.el5.x86_64.rpm kernel-xen-devel-2.6.18-348.3.1.el5.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2013-0268.html https://www.redhat.com/security/data/cve/CVE-2013-0871.html https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2013 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFRPjW6XlSAg2UNWIIRAgb9AKCc/Bsb3qC+XmoCvbmr1aK82wpOmgCcDliT QbiKo7FzpWFrbkgEPfXtNi8= =yL6c - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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