ID de Prueba:	1.3.6.1.4.1.25623.1.0.870639
Categoría:	Red Hat Local Security Checks
Título:	RedHat Update for qemu-kvm RHSA-2011:0534-01
Resumen:	The remote host is missing an update for the 'qemu-kvm'; package(s) announced via the referenced advisory.
Descripción:	Summary: The remote host is missing an update for the 'qemu-kvm' package(s) announced via the referenced advisory. Vulnerability Insight: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. qemu-kvm is the user-space component for running virtual machines using KVM. It was found that the virtio-blk driver in qemu-kvm did not properly validate read and write requests from guests. A privileged guest user could use this flaw to crash the guest or, possibly, execute arbitrary code on the host. (CVE-2011-1750) It was found that the PIIX4 Power Management emulation layer in qemu-kvm did not properly check for hot plug eligibility during device removals. A privileged guest user could use this flaw to crash the guest or, possibly, execute arbitrary code on the host. (CVE-2011-1751) Red Hat would like to thank Nelson Elhage for reporting CVE-2011-1751. This update also fixes several bugs and adds various enhancements. Documentation for these bug fixes and enhancements will be available shortly from the Technical Notes document, linked to in the References section. All users of qemu-kvm should upgrade to these updated packages, which contain backported patches to resolve these issues, and fix the bugs and add the enhancements noted in the Technical Notes. 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 the linked references. Affected Software/OS: qemu-kvm on Red Hat Enterprise Linux Desktop (v. 6), Red Hat Enterprise Linux Server (v. 6), Red Hat Enterprise Linux Workstation (v. 6) Solution: Please Install the Updated Packages. CVSS Score: 7.4 CVSS Vector: AV:A/AC:M/Au:S/C:C/I:C/A:C
Referencia Cruzada:	Common Vulnerability Exposure (CVE) ID: CVE-2011-1750 44132 http://secunia.com/advisories/44132 44393 http://secunia.com/advisories/44393 44658 http://secunia.com/advisories/44658 44660 http://secunia.com/advisories/44660 44900 http://secunia.com/advisories/44900 73756 http://www.osvdb.org/73756 DSA-2230 https://www.debian.org/security/2011/dsa-2230 FEDORA-2012-8604 http://lists.fedoraproject.org/pipermail/package-announce/2012-June/081972.html RHSA-2011:0534 http://rhn.redhat.com/errata/RHSA-2011-0534.html SUSE-SU-2011:0533 https://hermes.opensuse.org/messages/8572547 USN-1145-1 https://www.ubuntu.com/usn/USN-1145-1/ [Qemu-devel] 20110330 Re: virtio-blk.c handling of i/o which is not a 512 multiple http://lists.gnu.org/archive/html/qemu-devel/2011-03/msg03019.html [Qemu-devel] 20110330 virtio-blk.c handling of i/o which is not a 512 multiple http://lists.gnu.org/archive/html/qemu-devel/2011-03/msg03015.html http://git.kernel.org/?p=virt/kvm/qemu-kvm.git%3Ba=commitdiff%3Bh=52c050236eaa4f0b5e1d160cd66dc18106445c4d kvm-virtioblk-priv-escalation(67062) https://exchange.xforce.ibmcloud.com/vulnerabilities/67062 openSUSE-SU-2011:0510 http://lists.opensuse.org/opensuse-updates/2011-05/msg00043.html Common Vulnerability Exposure (CVE) ID: CVE-2011-1751 44458 http://secunia.com/advisories/44458 44648 http://secunia.com/advisories/44648 47927 http://www.securityfocus.com/bid/47927 73395 http://www.osvdb.org/73395 [Qemu-devel] 20110519 [PATCH] Ignore pci unplug requests for unpluggable devices http://lists.nongnu.org/archive/html/qemu-devel/2011-05/msg01810.html [oss-security] 20110519 CVE-2011-1751 qemu: acpi_piix4: missing hotplug check during device removal http://www.openwall.com/lists/oss-security/2011/05/19/2 http://blog.nelhage.com/2011/08/breaking-out-of-kvm/ http://git.kernel.org/?p=virt/kvm/qemu-kvm.git%3Ba=commit%3Bh=505597e4476a6bc219d0ec1362b760d71cb4fdca https://bugzilla.redhat.com/show_bug.cgi?id=699773 https://github.com/nelhage/virtunoid
Copyright	Copyright (C) 2012 Greenbone AG

Esta es sólo una de 145615 pruebas de vulnerabilidad en nuestra serie de pruebas. Encuentre más sobre cómo ejecutar una auditoría de seguridad completa. Para ejecutar una prueba gratuita de esta vulnerabilidad contra su sistema, regístrese ahora.