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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2012.1083 Low: kernel security and bug fix update 14 November 2012 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 5 Red Hat Enterprise Linux WS/Desktop 5 Impact/Access: Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2012-2934 CVE-2012-2100 CVE-2009-4307 Reference: ESB-2012.0542 ESB-2010.0291.2 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2012-1445.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== 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://rhn.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 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/): 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. 5 client): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/kernel-2.6.18-308.20.1.el5.src.rpm 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. 5 server): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/kernel-2.6.18-308.20.1.el5.src.rpm 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://www.redhat.com/security/data/cve/CVE-2012-2100.html https://access.redhat.com/security/updates/classification/#low https://rhn.redhat.com/errata/RHSA-2010-0178.html https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/5/html/5.8_Technical_Notes/kernel.html#RHSA-2012-1445 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2012 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFQom+oXlSAg2UNWIIRApXxAKCuyVw3G8ul6T02fKjDhkIwC5NUbgCgotgv mhExD5bL0KmKDMapE6Ek3o8= =9rwY - -----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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It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBUKLuOO4yVqjM2NGpAQJVmg/9HiT6752cvQsTl2A4DxjlobyfPhadZe02 /eVysJPJVILpRrRlPQJWlyHxMHDGKIOu/hNFucA+rY3ORkNNmpCjiMlTALyyXLYG zUyhuqCVCkCPUX/xf6/jQ/Fh8kvMy6BO1iDiHnSp8coWbph4JyUQA5BATN8lC9Mx oe5yfqYwqzqE1PMCnKY34y5+vY7LfQJl0OnaZUrfDElsquvZK/i+qWSZUtgv+3Ic wvQvMzJC8y2EGo6iPMQ1mzZ9c9nAJCeRfXyvR1LrfA6JF+HOyb+p26XQKsv4X2rg o3lx3/KidgVNsT4EucDYrItCLlwKC8RA42KhI4xDp6H1qQOIpqqiI4NSyaXPpJSg xLevj/JLenhFUMukI+HHY3VlBs+itLmX4kHTLu2bumfa1p8YomG1S7zhouV9JCiA VZWUQpPVUCrQdKZ/Xj2Q/KgLHyX2cD4QQ+vCdMkoO0dVSBRyWfjJjHPoQdjKSIaN UMM7S4rP1FaKR9nAmaeKcgMSN90Ijn7PL6pr6iT/6GOsynx+Mmlc+5brLb232CdE 1URRaqAVDEYLFVxzF50cJAAW1HM1x6rehdPHUxTrCz8cN8AzpbiZCePw3mYXUifF VA5waQiJC3Clp8nw5XKzuEzl9Lm81qpysXKqfWHVbDOLvPO0YQURPBcuWUpNKGoJ 43rmJBOPS3s= =eAVU -----END PGP SIGNATURE-----