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Red Hat Enterprise Linux 5 RHSA-2012:1445-01 Low: ext4 DoS Fix

Updated kernel packages that fix one security issue and several bugs are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having low [More...]. ==================================================================== Red Hat Security Advisory Synopsis: Low: kernel security and bug fix update Advisory ID: RHSA-2012:1445-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2012:1445.html Issue date: 2012-11-13 CVE Names: CVE-2012-2100 ==================================================================== 1. Summary: Updated kernel packages that fix one security issue and several bugs are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having low 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 issue: * It was found that the RHSA-2010:0178 update did not correctly fix the CVE-2009-4307 issue, a divide-by-zero flaw in the ext4 file system code. A local, unprivileged user with the ability to mount an ext4 file system could use this flaw to cause a denial of service. (CVE-2012-2100, Low) This update also fixes several bugs. Documentation for these changes will be available shortly from the Technical Notes document linked to in the References section. Users should upgrade to these updated packages, which contain backported patches to correct this issue, and fix the bugs noted in the Technical Notes. The system must be rebooted for this update to takeeffect. 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/): 809687 - CVE-2012-2100 kernel: ext4: fix inconsistency in ext4_fill_flex_info() 859946 - kernel: xen: change the default behaviour of CVE-2012-2934 fix [rhel-5.8.z] 6. Package List: Red Hat Enterprise Linux Desktop (v. 5client): Source: i386: kernel-2.6.18-308.20.1.el5.i686.rpm kernel-PAE-2.6.18-308.20.1.el5.i686.rpm kernel-PAE-debuginfo-2.6.18-308.20.1.el5.i686.rpm kernel-PAE-devel-2.6.18-308.20.1.el5.i686.rpm kernel-debug-2.6.18-308.20.1.el5.i686.rpm kernel-debug-debuginfo-2.6.18-308.20.1.el5.i686.rpm kernel-debug-devel-2.6.18-308.20.1.el5.i686.rpm kernel-debuginfo-2.6.18-308.20.1.el5.i686.rpm kernel-debuginfo-common-2.6.18-308.20.1.el5.i686.rpm kernel-devel-2.6.18-308.20.1.el5.i686.rpm kernel-headers-2.6.18-308.20.1.el5.i386.rpm kernel-xen-2.6.18-308.20.1.el5.i686.rpm kernel-xen-debuginfo-2.6.18-308.20.1.el5.i686.rpm kernel-xen-devel-2.6.18-308.20.1.el5.i686.rpm noarch: kernel-doc-2.6.18-308.20.1.el5.noarch.rpm x86_64: kernel-2.6.18-308.20.1.el5.x86_64.rpm kernel-debug-2.6.18-308.20.1.el5.x86_64.rpm kernel-debug-debuginfo-2.6.18-308.20.1.el5.x86_64.rpm kernel-debug-devel-2.6.18-308.20.1.el5.x86_64.rpm kernel-debuginfo-2.6.18-308.20.1.el5.x86_64.rpm kernel-debuginfo-common-2.6.18-308.20.1.el5.x86_64.rpm kernel-devel-2.6.18-308.20.1.el5.x86_64.rpm kernel-headers-2.6.18-308.20.1.el5.x86_64.rpm kernel-xen-2.6.18-308.20.1.el5.x86_64.rpm kernel-xen-debuginfo-2.6.18-308.20.1.el5.x86_64.rpm kernel-xen-devel-2.6.18-308.20.1.el5.x86_64.rpm Red Hat Enterprise Linux (v. 5server): Source: i386: kernel-2.6.18-308.20.1.el5.i686.rpm kernel-PAE-2.6.18-308.20.1.el5.i686.rpm kernel-PAE-debuginfo-2.6.18-308.20.1.el5.i686.rpm kernel-PAE-devel-2.6.18-308.20.1.el5.i686.rpm kernel-debug-2.6.18-308.20.1.el5.i686.rpm kernel-debug-debuginfo-2.6.18-308.20.1.el5.i686.rpm kernel-debug-devel-2.6.18-308.20.1.el5.i686.rpm kernel-debuginfo-2.6.18-308.20.1.el5.i686.rpm kernel-debuginfo-common-2.6.18-308.20.1.el5.i686.rpm kernel-devel-2.6.18-308.20.1.el5.i686.rpm kernel-headers-2.6.18-308.20.1.el5.i386.rpm kernel-xen-2.6.18-308.20.1.el5.i686.rpm kernel-xen-debuginfo-2.6.18-308.20.1.el5.i686.rpm kernel-xen-devel-2.6.18-308.20.1.el5.i686.rpm ia64: kernel-2.6.18-308.20.1.el5.ia64.rpm kernel-debug-2.6.18-308.20.1.el5.ia64.rpm kernel-debug-debuginfo-2.6.18-308.20.1.el5.ia64.rpm kernel-debug-devel-2.6.18-308.20.1.el5.ia64.rpm kernel-debuginfo-2.6.18-308.20.1.el5.ia64.rpm kernel-debuginfo-common-2.6.18-308.20.1.el5.ia64.rpm kernel-devel-2.6.18-308.20.1.el5.ia64.rpm kernel-headers-2.6.18-308.20.1.el5.ia64.rpm kernel-xen-2.6.18-308.20.1.el5.ia64.rpm kernel-xen-debuginfo-2.6.18-308.20.1.el5.ia64.rpm kernel-xen-devel-2.6.18-308.20.1.el5.ia64.rpm noarch: kernel-doc-2.6.18-308.20.1.el5.noarch.rpm ppc: kernel-2.6.18-308.20.1.el5.ppc64.rpm kernel-debug-2.6.18-308.20.1.el5.ppc64.rpm kernel-debug-debuginfo-2.6.18-308.20.1.el5.ppc64.rpm kernel-debug-devel-2.6.18-308.20.1.el5.ppc64.rpm kernel-debuginfo-2.6.18-308.20.1.el5.ppc64.rpm kernel-debuginfo-common-2.6.18-308.20.1.el5.ppc64.rpm kernel-devel-2.6.18-308.20.1.el5.ppc64.rpm kernel-headers-2.6.18-308.20.1.el5.ppc.rpm kernel-headers-2.6.18-308.20.1.el5.ppc64.rpm kernel-kdump-2.6.18-308.20.1.el5.ppc64.rpm kernel-kdump-debuginfo-2.6.18-308.20.1.el5.ppc64.rpm kernel-kdump-devel-2.6.18-308.20.1.el5.ppc64.rpm s390x: kernel-2.6.18-308.20.1.el5.s390x.rpm kernel-debug-2.6.18-308.20.1.el5.s390x.rpm kernel-debug-debuginfo-2.6.18-308.20.1.el5.s390x.rpm kernel-debug-devel-2.6.18-308.20.1.el5.s390x.rpm kernel-debuginfo-2.6.18-308.20.1.el5.s390x.rpm kernel-debuginfo-common-2.6.18-308.20.1.el5.s390x.rpm kernel-devel-2.6.18-308.20.1.el5.s390x.rpm kernel-headers-2.6.18-308.20.1.el5.s390x.rpm kernel-kdump-2.6.18-308.20.1.el5.s390x.rpm kernel-kdump-debuginfo-2.6.18-308.20.1.el5.s390x.rpm kernel-kdump-devel-2.6.18-308.20.1.el5.s390x.rpm x86_64: kernel-2.6.18-308.20.1.el5.x86_64.rpm kernel-debug-2.6.18-308.20.1.el5.x86_64.rpm kernel-debug-debuginfo-2.6.18-308.20.1.el5.x86_64.rpm kernel-debug-devel-2.6.18-308.20.1.el5.x86_64.rpm kernel-debuginfo-2.6.18-308.20.1.el5.x86_64.rpm kernel-debuginfo-common-2.6.18-308.20.1.el5.x86_64.rpm kernel-devel-2.6.18-308.20.1.el5.x86_64.rpm kernel-headers-2.6.18-308.20.1.el5.x86_64.rpm kernel-xen-2.6.18-308.20.1.el5.x86_64.rpm kernel-xen-debuginfo-2.6.18-308.20.1.el5.x86_64.rpm kernel-xen-devel-2.6.18-308.20.1.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://access.redhat.com/security/cve/CVE-2012-2100 https://access.redhat.com/security/updates/classification/#low https://access.redhat.com/errata/RHSA-2010:0178.html 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2012 Red Hat, Inc. . Red Hat Security Advisory Synopsis: Low: kernel security and bug fix update Advisory ID: RHSA-2012:1. updated, kernel, packages, security. . Severity: Low. LinuxSecurity.com Team

Nov 13, 2012 •Low Red Hat