Red Hat: 2014:0900-01: kernel: Important Advisory

    Date17 Jul 2014
    CategoryRed Hat
    1362
    Posted ByJoe Shakespeare
    Updated kernel packages that fix three security issues and one bug are now available for Red Hat Enterprise Linux 6.4 Extended Update Support. The Red Hat Security Response Team has rated this update as having [More...]
    =====================================================================
                       Red Hat Security Advisory
    
    Synopsis:          Important: kernel security and bug fix update
    Advisory ID:       RHSA-2014:0900-01
    Product:           Red Hat Enterprise Linux
    Advisory URL:      https://rhn.redhat.com/errata/RHSA-2014-0900.html
    Issue date:        2014-07-17
    CVE Names:         CVE-2014-1737 CVE-2014-1738 CVE-2014-3153 
    =====================================================================
    
    1. Summary:
    
    Updated kernel packages that fix three security issues and one bug are now
    available for Red Hat Enterprise Linux 6.4 Extended Update Support.
    
    The Red Hat Security Response Team has rated this update as having
    Important 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 Compute Node Optional EUS (v. 6.4) - x86_64
    Red Hat Enterprise Linux HPC Node EUS (v. 6.4) - noarch, x86_64
    Red Hat Enterprise Linux Server EUS (v. 6.4) - i386, noarch, ppc64, s390x, x86_64
    Red Hat Enterprise Linux Server Optional EUS (v. 6.4) - i386, ppc64, s390x, x86_64
    
    3. Description:
    
    The kernel packages contain the Linux kernel, the core of any Linux
    operating system.
    
    * A flaw was found in the way the Linux kernel's futex subsystem handled
    the requeuing of certain Priority Inheritance (PI) futexes. A local,
    unprivileged user could use this flaw to escalate their privileges on the
    system. (CVE-2014-3153, Important)
    
    * A flaw was found in the way the Linux kernel's floppy driver handled user
    space provided data in certain error code paths while processing FDRAWCMD
    IOCTL commands. A local user with write access to /dev/fdX could use this
    flaw to free (using the kfree() function) arbitrary kernel memory.
    (CVE-2014-1737, Important)
    
    * It was found that the Linux kernel's floppy driver leaked internal kernel
    memory addresses to user space during the processing of the FDRAWCMD IOCTL
    command. A local user with write access to /dev/fdX could use this flaw to
    obtain information about the kernel heap arrangement. (CVE-2014-1738, Low)
    
    Note: A local user with write access to /dev/fdX could use these two flaws
    (CVE-2014-1737 in combination with CVE-2014-1738) to escalate their
    privileges on the system.
    
    Red Hat would like to thank Kees Cook of Google for reporting
    CVE-2014-3153, and Matthew Daley for reporting CVE-2014-1737 and
    CVE-2014-1738. Google acknowledges Pinkie Pie as the original reporter of
    CVE-2014-3153.
    
    This update also fixes the following bug:
    
    * A previous change that introduced global clock updates caused guest
    machines to boot slowly when the host Time Stamp Counter (TSC) was marked
    as unstable. The slow down increased with the number of vCPUs allocated.
    To resolve this problem, a patch has been applied to limit the rate of the
    global clock updates. (BZ#1102253)
    
    All kernel users are advised to 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/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 (https://bugzilla.redhat.com/):
    
    1094299 - CVE-2014-1737 CVE-2014-1738 kernel: block: floppy: privilege escalation via FDRAWCMD floppy ioctl command
    1103626 - CVE-2014-3153 kernel: futex: pi futexes requeue issue
    
    6. Package List:
    
    Red Hat Enterprise Linux HPC Node EUS (v. 6.4):
    
    Source:
    kernel-2.6.32-358.46.1.el6.src.rpm
    
    noarch:
    kernel-doc-2.6.32-358.46.1.el6.noarch.rpm
    kernel-firmware-2.6.32-358.46.1.el6.noarch.rpm
    
    x86_64:
    kernel-2.6.32-358.46.1.el6.x86_64.rpm
    kernel-debug-2.6.32-358.46.1.el6.x86_64.rpm
    kernel-debug-debuginfo-2.6.32-358.46.1.el6.x86_64.rpm
    kernel-debug-devel-2.6.32-358.46.1.el6.x86_64.rpm
    kernel-debuginfo-2.6.32-358.46.1.el6.x86_64.rpm
    kernel-debuginfo-common-x86_64-2.6.32-358.46.1.el6.x86_64.rpm
    kernel-devel-2.6.32-358.46.1.el6.x86_64.rpm
    kernel-headers-2.6.32-358.46.1.el6.x86_64.rpm
    perf-2.6.32-358.46.1.el6.x86_64.rpm
    perf-debuginfo-2.6.32-358.46.1.el6.x86_64.rpm
    python-perf-debuginfo-2.6.32-358.46.1.el6.x86_64.rpm
    
    Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.4):
    
    Source:
    kernel-2.6.32-358.46.1.el6.src.rpm
    
    x86_64:
    kernel-debug-debuginfo-2.6.32-358.46.1.el6.x86_64.rpm
    kernel-debuginfo-2.6.32-358.46.1.el6.x86_64.rpm
    kernel-debuginfo-common-x86_64-2.6.32-358.46.1.el6.x86_64.rpm
    perf-debuginfo-2.6.32-358.46.1.el6.x86_64.rpm
    python-perf-2.6.32-358.46.1.el6.x86_64.rpm
    python-perf-debuginfo-2.6.32-358.46.1.el6.x86_64.rpm
    
    Red Hat Enterprise Linux Server EUS (v. 6.4):
    
    Source:
    kernel-2.6.32-358.46.1.el6.src.rpm
    
    i386:
    kernel-2.6.32-358.46.1.el6.i686.rpm
    kernel-debug-2.6.32-358.46.1.el6.i686.rpm
    kernel-debug-debuginfo-2.6.32-358.46.1.el6.i686.rpm
    kernel-debug-devel-2.6.32-358.46.1.el6.i686.rpm
    kernel-debuginfo-2.6.32-358.46.1.el6.i686.rpm
    kernel-debuginfo-common-i686-2.6.32-358.46.1.el6.i686.rpm
    kernel-devel-2.6.32-358.46.1.el6.i686.rpm
    kernel-headers-2.6.32-358.46.1.el6.i686.rpm
    perf-2.6.32-358.46.1.el6.i686.rpm
    perf-debuginfo-2.6.32-358.46.1.el6.i686.rpm
    python-perf-debuginfo-2.6.32-358.46.1.el6.i686.rpm
    
    noarch:
    kernel-doc-2.6.32-358.46.1.el6.noarch.rpm
    kernel-firmware-2.6.32-358.46.1.el6.noarch.rpm
    
    ppc64:
    kernel-2.6.32-358.46.1.el6.ppc64.rpm
    kernel-bootwrapper-2.6.32-358.46.1.el6.ppc64.rpm
    kernel-debug-2.6.32-358.46.1.el6.ppc64.rpm
    kernel-debug-debuginfo-2.6.32-358.46.1.el6.ppc64.rpm
    kernel-debug-devel-2.6.32-358.46.1.el6.ppc64.rpm
    kernel-debuginfo-2.6.32-358.46.1.el6.ppc64.rpm
    kernel-debuginfo-common-ppc64-2.6.32-358.46.1.el6.ppc64.rpm
    kernel-devel-2.6.32-358.46.1.el6.ppc64.rpm
    kernel-headers-2.6.32-358.46.1.el6.ppc64.rpm
    perf-2.6.32-358.46.1.el6.ppc64.rpm
    perf-debuginfo-2.6.32-358.46.1.el6.ppc64.rpm
    python-perf-debuginfo-2.6.32-358.46.1.el6.ppc64.rpm
    
    s390x:
    kernel-2.6.32-358.46.1.el6.s390x.rpm
    kernel-debug-2.6.32-358.46.1.el6.s390x.rpm
    kernel-debug-debuginfo-2.6.32-358.46.1.el6.s390x.rpm
    kernel-debug-devel-2.6.32-358.46.1.el6.s390x.rpm
    kernel-debuginfo-2.6.32-358.46.1.el6.s390x.rpm
    kernel-debuginfo-common-s390x-2.6.32-358.46.1.el6.s390x.rpm
    kernel-devel-2.6.32-358.46.1.el6.s390x.rpm
    kernel-headers-2.6.32-358.46.1.el6.s390x.rpm
    kernel-kdump-2.6.32-358.46.1.el6.s390x.rpm
    kernel-kdump-debuginfo-2.6.32-358.46.1.el6.s390x.rpm
    kernel-kdump-devel-2.6.32-358.46.1.el6.s390x.rpm
    perf-2.6.32-358.46.1.el6.s390x.rpm
    perf-debuginfo-2.6.32-358.46.1.el6.s390x.rpm
    python-perf-debuginfo-2.6.32-358.46.1.el6.s390x.rpm
    
    x86_64:
    kernel-2.6.32-358.46.1.el6.x86_64.rpm
    kernel-debug-2.6.32-358.46.1.el6.x86_64.rpm
    kernel-debug-debuginfo-2.6.32-358.46.1.el6.x86_64.rpm
    kernel-debug-devel-2.6.32-358.46.1.el6.x86_64.rpm
    kernel-debuginfo-2.6.32-358.46.1.el6.x86_64.rpm
    kernel-debuginfo-common-x86_64-2.6.32-358.46.1.el6.x86_64.rpm
    kernel-devel-2.6.32-358.46.1.el6.x86_64.rpm
    kernel-headers-2.6.32-358.46.1.el6.x86_64.rpm
    perf-2.6.32-358.46.1.el6.x86_64.rpm
    perf-debuginfo-2.6.32-358.46.1.el6.x86_64.rpm
    python-perf-debuginfo-2.6.32-358.46.1.el6.x86_64.rpm
    
    Red Hat Enterprise Linux Server Optional EUS (v. 6.4):
    
    Source:
    kernel-2.6.32-358.46.1.el6.src.rpm
    
    i386:
    kernel-debug-debuginfo-2.6.32-358.46.1.el6.i686.rpm
    kernel-debuginfo-2.6.32-358.46.1.el6.i686.rpm
    kernel-debuginfo-common-i686-2.6.32-358.46.1.el6.i686.rpm
    perf-debuginfo-2.6.32-358.46.1.el6.i686.rpm
    python-perf-2.6.32-358.46.1.el6.i686.rpm
    python-perf-debuginfo-2.6.32-358.46.1.el6.i686.rpm
    
    ppc64:
    kernel-debug-debuginfo-2.6.32-358.46.1.el6.ppc64.rpm
    kernel-debuginfo-2.6.32-358.46.1.el6.ppc64.rpm
    kernel-debuginfo-common-ppc64-2.6.32-358.46.1.el6.ppc64.rpm
    perf-debuginfo-2.6.32-358.46.1.el6.ppc64.rpm
    python-perf-2.6.32-358.46.1.el6.ppc64.rpm
    python-perf-debuginfo-2.6.32-358.46.1.el6.ppc64.rpm
    
    s390x:
    kernel-debug-debuginfo-2.6.32-358.46.1.el6.s390x.rpm
    kernel-debuginfo-2.6.32-358.46.1.el6.s390x.rpm
    kernel-debuginfo-common-s390x-2.6.32-358.46.1.el6.s390x.rpm
    kernel-kdump-debuginfo-2.6.32-358.46.1.el6.s390x.rpm
    perf-debuginfo-2.6.32-358.46.1.el6.s390x.rpm
    python-perf-2.6.32-358.46.1.el6.s390x.rpm
    python-perf-debuginfo-2.6.32-358.46.1.el6.s390x.rpm
    
    x86_64:
    kernel-debug-debuginfo-2.6.32-358.46.1.el6.x86_64.rpm
    kernel-debuginfo-2.6.32-358.46.1.el6.x86_64.rpm
    kernel-debuginfo-common-x86_64-2.6.32-358.46.1.el6.x86_64.rpm
    perf-debuginfo-2.6.32-358.46.1.el6.x86_64.rpm
    python-perf-2.6.32-358.46.1.el6.x86_64.rpm
    python-perf-debuginfo-2.6.32-358.46.1.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-2014-1737.html
    https://www.redhat.com/security/data/cve/CVE-2014-1738.html
    https://www.redhat.com/security/data/cve/CVE-2014-3153.html
    https://access.redhat.com/security/updates/classification/#important
    
    8. Contact:
    
    The Red Hat security contact is .  More contact
    details at https://access.redhat.com/security/team/contact/
    
    Copyright 2014 Red Hat, Inc.
    
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