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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2012.0381 Moderate: kernel security, bug fix, and enhancement update 18 April 2012 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 6 Red Hat Enterprise Linux WS/Desktop 6 Impact/Access: Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2012-1097 CVE-2012-1090 CVE-2012-0879 Reference: ESB-2012.0317 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2012-0481.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: kernel security, bug fix, and enhancement update Advisory ID: RHSA-2012:0481-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-0481.html Issue date: 2012-04-17 CVE Names: CVE-2012-0879 CVE-2012-1090 CVE-2012-1097 ===================================================================== 1. Summary: Updated kernel packages that fix multiple security issues, several bugs, and add various enhancements 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. 2. Relevant releases/architectures: Red Hat Enterprise Linux Desktop (v. 6) - i386, noarch, x86_64 Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - noarch, x86_64 Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, noarch, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, noarch, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, 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: * Numerous reference count leaks were found in the Linux kernel's block layer I/O context handling implementation. This could allow a local, unprivileged user to cause a denial of service. (CVE-2012-0879, Moderate) * A flaw was found in the Linux kernel's cifs_lookup() implementation. POSIX open during lookup should only be supported for regular files. When non-regular files (for example, a named (FIFO) pipe or other special files) are opened on lookup, it could cause a denial of service. (CVE-2012-1090, Moderate) * It was found that the Linux kernel's register set (regset) common infrastructure implementation did not check if the required get and set handlers were initialized. A local, unprivileged user could use this flaw to cause a denial of service by performing a register set operation with a ptrace() PTRACE_SETREGSET or PTRACE_GETREGSET request. (CVE-2012-1097, Moderate) Red Hat would like to thank H. Peter Anvin for reporting CVE-2012-1097. This update also fixes several bugs and adds various enhancements. 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 and add the enhancements 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/): 789373 - cifs: multiple process stuck waiting for page lock [rhel-6.2.z] 796829 - CVE-2012-0879 kernel: block: CLONE_IO io_context refcounting issues 798293 - CVE-2012-1090 kernel: cifs: dentry refcount leak when opening a FIFO on lookup leads to panic on unmount 799209 - CVE-2012-1097 kernel: regset: Prevent null pointer reference on readonly regsets 802379 - Anomaly in mbind memory map causing Java Hotspot JVM Seg fault with NUMA aware ParallelScavange GC [rhel-6.2.z] 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/kernel-2.6.32-220.13.1.el6.src.rpm i386: kernel-2.6.32-220.13.1.el6.i686.rpm kernel-debug-2.6.32-220.13.1.el6.i686.rpm kernel-debug-debuginfo-2.6.32-220.13.1.el6.i686.rpm kernel-debug-devel-2.6.32-220.13.1.el6.i686.rpm kernel-debuginfo-2.6.32-220.13.1.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-220.13.1.el6.i686.rpm kernel-devel-2.6.32-220.13.1.el6.i686.rpm kernel-headers-2.6.32-220.13.1.el6.i686.rpm perf-2.6.32-220.13.1.el6.i686.rpm perf-debuginfo-2.6.32-220.13.1.el6.i686.rpm noarch: kernel-doc-2.6.32-220.13.1.el6.noarch.rpm kernel-firmware-2.6.32-220.13.1.el6.noarch.rpm x86_64: kernel-2.6.32-220.13.1.el6.x86_64.rpm kernel-debug-2.6.32-220.13.1.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm kernel-debug-devel-2.6.32-220.13.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-220.13.1.el6.x86_64.rpm kernel-devel-2.6.32-220.13.1.el6.x86_64.rpm kernel-headers-2.6.32-220.13.1.el6.x86_64.rpm perf-2.6.32-220.13.1.el6.x86_64.rpm perf-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm Red Hat Enterprise Linux Desktop Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/kernel-2.6.32-220.13.1.el6.src.rpm i386: kernel-debug-debuginfo-2.6.32-220.13.1.el6.i686.rpm kernel-debuginfo-2.6.32-220.13.1.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-220.13.1.el6.i686.rpm perf-debuginfo-2.6.32-220.13.1.el6.i686.rpm python-perf-2.6.32-220.13.1.el6.i686.rpm x86_64: kernel-debug-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-220.13.1.el6.x86_64.rpm perf-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm python-perf-2.6.32-220.13.1.el6.x86_64.rpm Red Hat Enterprise Linux HPC Node (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/kernel-2.6.32-220.13.1.el6.src.rpm noarch: kernel-doc-2.6.32-220.13.1.el6.noarch.rpm kernel-firmware-2.6.32-220.13.1.el6.noarch.rpm x86_64: kernel-2.6.32-220.13.1.el6.x86_64.rpm kernel-debug-2.6.32-220.13.1.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm kernel-debug-devel-2.6.32-220.13.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-220.13.1.el6.x86_64.rpm kernel-devel-2.6.32-220.13.1.el6.x86_64.rpm kernel-headers-2.6.32-220.13.1.el6.x86_64.rpm perf-2.6.32-220.13.1.el6.x86_64.rpm perf-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm Red Hat Enterprise Linux HPC Node Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/kernel-2.6.32-220.13.1.el6.src.rpm x86_64: kernel-debug-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-220.13.1.el6.x86_64.rpm perf-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm python-perf-2.6.32-220.13.1.el6.x86_64.rpm Red Hat Enterprise Linux Server (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/kernel-2.6.32-220.13.1.el6.src.rpm i386: kernel-2.6.32-220.13.1.el6.i686.rpm kernel-debug-2.6.32-220.13.1.el6.i686.rpm kernel-debug-debuginfo-2.6.32-220.13.1.el6.i686.rpm kernel-debug-devel-2.6.32-220.13.1.el6.i686.rpm kernel-debuginfo-2.6.32-220.13.1.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-220.13.1.el6.i686.rpm kernel-devel-2.6.32-220.13.1.el6.i686.rpm kernel-headers-2.6.32-220.13.1.el6.i686.rpm perf-2.6.32-220.13.1.el6.i686.rpm perf-debuginfo-2.6.32-220.13.1.el6.i686.rpm noarch: kernel-doc-2.6.32-220.13.1.el6.noarch.rpm kernel-firmware-2.6.32-220.13.1.el6.noarch.rpm ppc64: kernel-2.6.32-220.13.1.el6.ppc64.rpm kernel-bootwrapper-2.6.32-220.13.1.el6.ppc64.rpm kernel-debug-2.6.32-220.13.1.el6.ppc64.rpm kernel-debug-debuginfo-2.6.32-220.13.1.el6.ppc64.rpm kernel-debug-devel-2.6.32-220.13.1.el6.ppc64.rpm kernel-debuginfo-2.6.32-220.13.1.el6.ppc64.rpm kernel-debuginfo-common-ppc64-2.6.32-220.13.1.el6.ppc64.rpm kernel-devel-2.6.32-220.13.1.el6.ppc64.rpm kernel-headers-2.6.32-220.13.1.el6.ppc64.rpm perf-2.6.32-220.13.1.el6.ppc64.rpm perf-debuginfo-2.6.32-220.13.1.el6.ppc64.rpm s390x: kernel-2.6.32-220.13.1.el6.s390x.rpm kernel-debug-2.6.32-220.13.1.el6.s390x.rpm kernel-debug-debuginfo-2.6.32-220.13.1.el6.s390x.rpm kernel-debug-devel-2.6.32-220.13.1.el6.s390x.rpm kernel-debuginfo-2.6.32-220.13.1.el6.s390x.rpm kernel-debuginfo-common-s390x-2.6.32-220.13.1.el6.s390x.rpm kernel-devel-2.6.32-220.13.1.el6.s390x.rpm kernel-headers-2.6.32-220.13.1.el6.s390x.rpm kernel-kdump-2.6.32-220.13.1.el6.s390x.rpm kernel-kdump-debuginfo-2.6.32-220.13.1.el6.s390x.rpm kernel-kdump-devel-2.6.32-220.13.1.el6.s390x.rpm perf-2.6.32-220.13.1.el6.s390x.rpm perf-debuginfo-2.6.32-220.13.1.el6.s390x.rpm x86_64: kernel-2.6.32-220.13.1.el6.x86_64.rpm kernel-debug-2.6.32-220.13.1.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm kernel-debug-devel-2.6.32-220.13.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-220.13.1.el6.x86_64.rpm kernel-devel-2.6.32-220.13.1.el6.x86_64.rpm kernel-headers-2.6.32-220.13.1.el6.x86_64.rpm perf-2.6.32-220.13.1.el6.x86_64.rpm perf-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/kernel-2.6.32-220.13.1.el6.src.rpm i386: kernel-debug-debuginfo-2.6.32-220.13.1.el6.i686.rpm kernel-debuginfo-2.6.32-220.13.1.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-220.13.1.el6.i686.rpm perf-debuginfo-2.6.32-220.13.1.el6.i686.rpm python-perf-2.6.32-220.13.1.el6.i686.rpm ppc64: kernel-debug-debuginfo-2.6.32-220.13.1.el6.ppc64.rpm kernel-debuginfo-2.6.32-220.13.1.el6.ppc64.rpm kernel-debuginfo-common-ppc64-2.6.32-220.13.1.el6.ppc64.rpm perf-debuginfo-2.6.32-220.13.1.el6.ppc64.rpm python-perf-2.6.32-220.13.1.el6.ppc64.rpm s390x: kernel-debug-debuginfo-2.6.32-220.13.1.el6.s390x.rpm kernel-debuginfo-2.6.32-220.13.1.el6.s390x.rpm kernel-debuginfo-common-s390x-2.6.32-220.13.1.el6.s390x.rpm kernel-kdump-debuginfo-2.6.32-220.13.1.el6.s390x.rpm perf-debuginfo-2.6.32-220.13.1.el6.s390x.rpm python-perf-2.6.32-220.13.1.el6.s390x.rpm x86_64: kernel-debug-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-220.13.1.el6.x86_64.rpm perf-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm python-perf-2.6.32-220.13.1.el6.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/kernel-2.6.32-220.13.1.el6.src.rpm i386: kernel-2.6.32-220.13.1.el6.i686.rpm kernel-debug-2.6.32-220.13.1.el6.i686.rpm kernel-debug-debuginfo-2.6.32-220.13.1.el6.i686.rpm kernel-debug-devel-2.6.32-220.13.1.el6.i686.rpm kernel-debuginfo-2.6.32-220.13.1.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-220.13.1.el6.i686.rpm kernel-devel-2.6.32-220.13.1.el6.i686.rpm kernel-headers-2.6.32-220.13.1.el6.i686.rpm perf-2.6.32-220.13.1.el6.i686.rpm perf-debuginfo-2.6.32-220.13.1.el6.i686.rpm noarch: kernel-doc-2.6.32-220.13.1.el6.noarch.rpm kernel-firmware-2.6.32-220.13.1.el6.noarch.rpm x86_64: kernel-2.6.32-220.13.1.el6.x86_64.rpm kernel-debug-2.6.32-220.13.1.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm kernel-debug-devel-2.6.32-220.13.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-220.13.1.el6.x86_64.rpm kernel-devel-2.6.32-220.13.1.el6.x86_64.rpm kernel-headers-2.6.32-220.13.1.el6.x86_64.rpm perf-2.6.32-220.13.1.el6.x86_64.rpm perf-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 6): Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/kernel-2.6.32-220.13.1.el6.src.rpm i386: kernel-debug-debuginfo-2.6.32-220.13.1.el6.i686.rpm kernel-debuginfo-2.6.32-220.13.1.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-220.13.1.el6.i686.rpm perf-debuginfo-2.6.32-220.13.1.el6.i686.rpm python-perf-2.6.32-220.13.1.el6.i686.rpm x86_64: kernel-debug-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-220.13.1.el6.x86_64.rpm perf-debuginfo-2.6.32-220.13.1.el6.x86_64.rpm python-perf-2.6.32-220.13.1.el6.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-2012-0879.html https://www.redhat.com/security/data/cve/CVE-2012-1090.html https://www.redhat.com/security/data/cve/CVE-2012-1097.html https://access.redhat.com/security/updates/classification/#moderate https://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.2_Technical_Notes/kernel.html#RHSA-2012-0481 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) iD8DBQFPjb1qXlSAg2UNWIIRAr1bAKCgIyiDDlsHDSJ6FZgqP8HKyYm/egCfbHqC 0nrzFoFt2HRHC+gcPKO4aik= =9SK/ - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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