The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2014:0421 advisory.

    KVM (Kernel-based Virtual Machine) is a full virtualization solution for     Linux on AMD64 and Intel 64 systems. The qemu-kvm-rhev package provides the     user-space component for running virtual machines using KVM in environments     managed by Red Hat Enterprise Virtualization Manager.

    Multiple integer overflow, input validation, logic error, and buffer     overflow flaws were discovered in various QEMU block drivers. An attacker     able to modify a disk image file loaded by a guest could use these flaws to     crash the guest, or corrupt QEMU process memory on the host, potentially     resulting in arbitrary code execution on the host with the privileges of     the QEMU process. (CVE-2014-0143, CVE-2014-0144, CVE-2014-0145,     CVE-2014-0147)

    A buffer overflow flaw was found in the way the virtio_net_handle_mac()     function of QEMU processed guest requests to update the table of MAC     addresses. A privileged guest user could use this flaw to corrupt QEMU     process memory on the host, potentially resulting in arbitrary code     execution on the host with the privileges of the QEMU process.
    (CVE-2014-0150)

    A divide-by-zero flaw was found in the seek_to_sector() function of the     parallels block driver in QEMU. An attacker able to modify a disk image     file loaded by a guest could use this flaw to crash the guest.
    (CVE-2014-0142)

    A NULL pointer dereference flaw was found in the QCOW2 block driver in     QEMU. An attacker able to modify a disk image file loaded by a guest could     use this flaw to crash the guest. (CVE-2014-0146)

    It was found that the block driver for Hyper-V VHDX images did not     correctly calculate BAT (Block Allocation Table) entries due to a missing     bounds check. An attacker able to modify a disk image file loaded by a     guest could use this flaw to crash the guest. (CVE-2014-0148)

    The CVE-2014-0143 issues were discovered by Kevin Wolf and Stefan Hajnoczi     of Red Hat, the CVE-2014-0144 issues were discovered by Fam Zheng, Jeff     Cody, Kevin Wolf, and Stefan Hajnoczi of Red Hat, the CVE-2014-0145 issues     were discovered by Stefan Hajnoczi of Red Hat, the CVE-2014-0150 issue was     discovered by Michael S. Tsirkin of Red Hat, the CVE-2014-0142,     CVE-2014-0146, and CVE-2014-0147 issues were discovered by Kevin Wolf of     Red Hat, and the CVE-2014-0148 issue was discovered by Jeff Cody of     Red Hat.

    All users of qemu-kvm-rhev 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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

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RHEL 6 : qemu-kvm-rhev (RHSA-2014:0421)

high Nessus Plugin ID 79015

Version 1.16