Red Hat: 2014:0704-01: qemu-kvm: Moderate Advisory

    Date10 Jun 2014
    CategoryRed Hat
    996
    Posted ByJoe Shakespeare
    Updated qemu-kvm packages that fix one security issue and several bugs are now available for Red Hat Enterprise Linux 7. The Red Hat Security Response Team has rated this update as having Moderate [More...]
    =====================================================================
                       Red Hat Security Advisory
    
    Synopsis:          Moderate: qemu-kvm security and bug fix update
    Advisory ID:       RHSA-2014:0704-01
    Product:           Red Hat Enterprise Linux
    Advisory URL:      https://rhn.redhat.com/errata/RHSA-2014-0704.html
    Issue date:        2014-06-10
    CVE Names:         CVE-2014-2894 
    =====================================================================
    
    1. Summary:
    
    Updated qemu-kvm packages that fix one security issue and several bugs are
    now available for Red Hat Enterprise Linux 7.
    
    The Red Hat Security Response Team has rated this update as having Moderate
    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 Client (v. 7) - x86_64
    Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
    Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64
    Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
    Red Hat Enterprise Linux Server (v. 7) - x86_64
    Red Hat Enterprise Linux Server Optional (v. 7) - x86_64
    Red Hat Enterprise Linux Workstation (v. 7) - x86_64
    Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64
    
    3. Description:
    
    KVM (Kernel-based Virtual Machine) is a full virtualization solution for
    Linux on AMD64 and Intel 64 systems. The qemu-kvm packages provide a
    user-space component to run virtual machines using KVM.
    
    An out-of-bounds memory access flaw was found in the way QEMU's IDE device
    driver handled the execution of SMART EXECUTE OFFLINE commands.
    A privileged guest user could use this flaw to corrupt QEMU process memory
    on the host, which could potentially result in arbitrary code execution on
    the host with the privileges of the QEMU process. (CVE-2014-2894)
    
    This update also fixes the following bugs:
    
    * Prior to this update, a bug in the migration code caused the following
    error on specific machine types: after a Red Hat Enterprise Linux 6.5 guest
    was migrated from a Red Hat Enterprise Linux 6.5 host to a Red Hat
    Enterprise Linux 7.0 host and then restarted, the boot failed and the guest
    automatically restarted. Thus, the guest entered an endless loop. With this
    update, the migration code has been fixed and the Red Hat Enterprise Linux
    6.5 guests migrated in the aforementioned scenario now boot properly.
    (BZ#1091322)
    
    * Due to a regression bug in the iSCSI driver, the qemu-kvm process
    terminated unexpectedly with a segmentation fault when the "write same"
    command was executed in guest mode under the iSCSI protocol. This update
    fixes the regression and the "write same" command now functions in guest
    mode under iSCSI as intended. (BZ#1090978)
    
    * Due to a mismatch in interrupt request (IRQ) routing, migration of a Red
    Hat Enterprise Linux 6.5 guest from a Red Hat Enterprise Linux 6.5 host to
    a Red Hat Enterprise Linux 7.0 host could produce a call trace.
    This happened if memory ballooning and a Universal Host Control Interface
    (UHCI) device were used at the same time on certain machine types.
    With this patch, the IRQ routing mismatch has been amended and the
    described migration now proceeds as expected. (BZ#1090981)
    
    * Previously, an internal error prevented KVM from executing a CPU hot plug
    on a Red Hat Enterprise Linux 7 guest running on a Red Hat Enterprise Linux
    7 host. This update addresses the internal error and CPU hot plugging in
    the described scenario now functions correctly. (BZ#1094820)
    
    All qemu-kvm users are advised to upgrade to these updated packages, which
    contain backported patches to correct these issues. After installing this
    update, shut down all running virtual machines. Once all virtual machines
    have shut down, start them again 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/site/articles/11258
    
    5. Bugs fixed (https://bugzilla.redhat.com/):
    
    1087971 - CVE-2014-2894 QEMU: out of bounds buffer accesses, guest triggerable via IDE SMART
    1090978 - qemu-kvm: iSCSI: Failure. SENSE KEY:ILLEGAL_REQUEST(5) ASCQ:INVALID_FIELD_IN_CDB(0x2400)
    1090981 - Guest hits call trace migrate from RHEL6.5 to RHEL7.0 host with -M 6.1 & balloon & uhci device
    1091322 - fail to reboot guest after migration from RHEL6.5 host to RHEL7.0 host
    1094820 - Hot plug CPU not working with RHEL6  machine types running on RHEL7 host.
    
    6. Package List:
    
    Red Hat Enterprise Linux Client (v. 7):
    
    Source:
    qemu-kvm-1.5.3-60.el7_0.2.src.rpm
    
    x86_64:
    libcacard-1.5.3-60.el7_0.2.i686.rpm
    libcacard-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-guest-agent-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-img-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-kvm-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-kvm-common-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-kvm-debuginfo-1.5.3-60.el7_0.2.i686.rpm
    qemu-kvm-debuginfo-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-kvm-tools-1.5.3-60.el7_0.2.x86_64.rpm
    
    Red Hat Enterprise Linux Client Optional (v. 7):
    
    x86_64:
    libcacard-devel-1.5.3-60.el7_0.2.i686.rpm
    libcacard-devel-1.5.3-60.el7_0.2.x86_64.rpm
    libcacard-tools-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-kvm-debuginfo-1.5.3-60.el7_0.2.i686.rpm
    qemu-kvm-debuginfo-1.5.3-60.el7_0.2.x86_64.rpm
    
    Red Hat Enterprise Linux ComputeNode (v. 7):
    
    Source:
    qemu-kvm-1.5.3-60.el7_0.2.src.rpm
    
    x86_64:
    qemu-guest-agent-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-kvm-debuginfo-1.5.3-60.el7_0.2.x86_64.rpm
    
    Red Hat Enterprise Linux ComputeNode Optional (v. 7):
    
    x86_64:
    libcacard-1.5.3-60.el7_0.2.i686.rpm
    libcacard-1.5.3-60.el7_0.2.x86_64.rpm
    libcacard-devel-1.5.3-60.el7_0.2.i686.rpm
    libcacard-devel-1.5.3-60.el7_0.2.x86_64.rpm
    libcacard-tools-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-img-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-kvm-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-kvm-common-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-kvm-debuginfo-1.5.3-60.el7_0.2.i686.rpm
    qemu-kvm-debuginfo-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-kvm-tools-1.5.3-60.el7_0.2.x86_64.rpm
    
    Red Hat Enterprise Linux Server (v. 7):
    
    Source:
    qemu-kvm-1.5.3-60.el7_0.2.src.rpm
    
    x86_64:
    libcacard-1.5.3-60.el7_0.2.i686.rpm
    libcacard-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-guest-agent-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-img-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-kvm-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-kvm-common-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-kvm-debuginfo-1.5.3-60.el7_0.2.i686.rpm
    qemu-kvm-debuginfo-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-kvm-tools-1.5.3-60.el7_0.2.x86_64.rpm
    
    Red Hat Enterprise Linux Server Optional (v. 7):
    
    x86_64:
    libcacard-devel-1.5.3-60.el7_0.2.i686.rpm
    libcacard-devel-1.5.3-60.el7_0.2.x86_64.rpm
    libcacard-tools-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-kvm-debuginfo-1.5.3-60.el7_0.2.i686.rpm
    qemu-kvm-debuginfo-1.5.3-60.el7_0.2.x86_64.rpm
    
    Red Hat Enterprise Linux Workstation (v. 7):
    
    Source:
    qemu-kvm-1.5.3-60.el7_0.2.src.rpm
    
    x86_64:
    libcacard-1.5.3-60.el7_0.2.i686.rpm
    libcacard-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-guest-agent-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-img-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-kvm-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-kvm-common-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-kvm-debuginfo-1.5.3-60.el7_0.2.i686.rpm
    qemu-kvm-debuginfo-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-kvm-tools-1.5.3-60.el7_0.2.x86_64.rpm
    
    Red Hat Enterprise Linux Workstation Optional (v. 7):
    
    x86_64:
    libcacard-devel-1.5.3-60.el7_0.2.i686.rpm
    libcacard-devel-1.5.3-60.el7_0.2.x86_64.rpm
    libcacard-tools-1.5.3-60.el7_0.2.x86_64.rpm
    qemu-kvm-debuginfo-1.5.3-60.el7_0.2.i686.rpm
    qemu-kvm-debuginfo-1.5.3-60.el7_0.2.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-2014-2894.html
    https://access.redhat.com/security/updates/classification/#moderate
    
    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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