Red Hat Security Advisory: kernel security and bug fix update Security Advisory secalert@redhat.com Red Hat Security Response Team RHSA-2012:1156 Final 1 1 2012-08-14T16:38:00Z Current version 2012-08-14T16:38:00Z 2012-08-14T16:38:00Z Red Hat rhsa-to-cvrf 1.0.1484 2012-08-14T18:09:02Z Updated kernel packages that fix two security issues and several bugs are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The kernel packages contain the Linux kernel, the core of any Linux operating system. This update fixes the following security issues: * An integer overflow flaw was found in the i915_gem_execbuffer2() function in the Intel i915 driver in the Linux kernel. A local, unprivileged user could use this flaw to cause a denial of service. This issue only affected 32-bit systems. (CVE-2012-2383, Moderate) * A missing initialization flaw was found in the sco_sock_getsockopt_old() function in the Linux kernel's Bluetooth implementation. A local, unprivileged user could use this flaw to cause an information leak. (CVE-2011-1078, Low) Red Hat would like to thank Vasiliy Kulikov of Openwall for reporting the CVE-2011-1078 issue. 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 these issues, and fix the bugs noted in the Technical Notes. The system must be rebooted for this update to take effect. Please see https://www.redhat.com/footer/terms-of-use.html Copyright © 2012 Red Hat, Inc. All rights reserved. Moderate https://rhn.redhat.com/errata/RHSA-2012-1156.html https://rhn.redhat.com/errata/RHSA-2012-1156.html https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.3_Technical_Notes/kernel.html#RHSA-2012-1156 https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.3_Technical_Notes/kernel.html#RHSA-2012-1156 https://bugzilla.redhat.com/show_bug.cgi?id=842429 https://bugzilla.redhat.com/show_bug.cgi?id=842429 Red Hat Enterprise Linux HPC Node Optional (v. 6) Red Hat Enterprise Linux Server (v. 6) Red Hat Enterprise Linux Workstation (v. 6) Red Hat Enterprise Linux Desktop Optional (v. 6) Red Hat Enterprise Linux Workstation Optional (v. 6) Red Hat Enterprise Linux HPC Node (v. 6) Red Hat Enterprise Linux Desktop (v. 6) Red Hat Enterprise Linux Server Optional (v. 6) kernel-2.6.32-279.5.1.el6.src.rpm kernel-2.6.32-279.5.1.el6 as a component of Red Hat Enterprise Linux HPC Node Optional (v. 6) kernel-2.6.32-279.5.1.el6 as a component of Red Hat Enterprise Linux Server (v. 6) kernel-2.6.32-279.5.1.el6 as a component of Red Hat Enterprise Linux Workstation (v. 6) kernel-2.6.32-279.5.1.el6 as a component of Red Hat Enterprise Linux Desktop Optional (v. 6) kernel-2.6.32-279.5.1.el6 as a component of Red Hat Enterprise Linux Workstation Optional (v. 6) kernel-2.6.32-279.5.1.el6 as a component of Red Hat Enterprise Linux HPC Node (v. 6) kernel-2.6.32-279.5.1.el6 as a component of Red Hat Enterprise Linux Desktop (v. 6) kernel-2.6.32-279.5.1.el6 as a component of Red Hat Enterprise Linux Server Optional (v. 6) A missing initialization flaw was found in the sco_sock_getsockopt_old() function in the Linux kernel's Bluetooth implementation. A local, unprivileged user could use this flaw to cause an information leak. 2011-02-28T00:00:00Z 2011-02-14T00:00:00Z CVE-2011-1078 6Client-6.3.z:kernel-2.6.32-279.5.1.el6 6Client-optional-6.3.z:kernel-2.6.32-279.5.1.el6 6ComputeNode-6.3.z:kernel-2.6.32-279.5.1.el6 6ComputeNode-optional-6.3.z:kernel-2.6.32-279.5.1.el6 6Server-6.3.z:kernel-2.6.32-279.5.1.el6 6Server-optional-6.3.z:kernel-2.6.32-279.5.1.el6 6Workstation-6.3.z:kernel-2.6.32-279.5.1.el6 6Workstation-optional-6.3.z:kernel-2.6.32-279.5.1.el6 Low 1.9 AV:L/AC:M/Au:N/C:P/I:N/A:N 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. https://rhn.redhat.com/errata/RHSA-2012-1156.html https://www.redhat.com/security/data/cve/CVE-2011-1078.html CVE-2011-1078 https://bugzilla.redhat.com/show_bug.cgi?id=681259 bz#681259: CVE-2011-1078 kernel: bt sco_conninfo infoleak Red Hat would like to thank Vasiliy Kulikov of Openwall for reporting this issue. An integer overflow flaw was found in the i915_gem_execbuffer2() function in the Intel i915 driver in the Linux kernel. A local, unprivileged user could use this flaw to cause a denial of service. This issue only affected 32-bit systems. 2012-05-21T00:00:00Z 2012-04-23T00:00:00Z CVE-2012-2383 6Client-6.3.z:kernel-2.6.32-279.5.1.el6 6Client-optional-6.3.z:kernel-2.6.32-279.5.1.el6 6ComputeNode-6.3.z:kernel-2.6.32-279.5.1.el6 6ComputeNode-optional-6.3.z:kernel-2.6.32-279.5.1.el6 6Server-6.3.z:kernel-2.6.32-279.5.1.el6 6Server-optional-6.3.z:kernel-2.6.32-279.5.1.el6 6Workstation-6.3.z:kernel-2.6.32-279.5.1.el6 6Workstation-optional-6.3.z:kernel-2.6.32-279.5.1.el6 Moderate 4.9 AV:L/AC:L/Au:N/C:N/I:N/A:C 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. https://rhn.redhat.com/errata/RHSA-2012-1156.html https://www.redhat.com/security/data/cve/CVE-2012-2383.html CVE-2012-2383 https://bugzilla.redhat.com/show_bug.cgi?id=824176 bz#824176: CVE-2012-2383 kernel: drm/i915: integer overflow in i915_gem_execbuffer2()