Test ID:	1.3.6.1.4.1.25623.1.0.69647
Category:	Red Hat Local Security Checks
Title:	RedHat Security Advisory RHSA-2011:0534
Summary:	NOSUMMARY
Description:	Description: The remote host is missing updates announced in advisory RHSA-2011:0534. 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. Solution: Please note that this update is available via Red Hat Network. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date http://rhn.redhat.com/errata/RHSA-2011-0534.html http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html-single/6.1_Technical_Notes/index.html Risk factor : High
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2011-1750 Debian Security Information: DSA-2230 (Google Search) https://www.debian.org/security/2011/dsa-2230 http://lists.fedoraproject.org/pipermail/package-announce/2012-June/081972.html http://lists.gnu.org/archive/html/qemu-devel/2011-03/msg03019.html http://lists.gnu.org/archive/html/qemu-devel/2011-03/msg03015.html http://www.osvdb.org/73756 RedHat Security Advisories: RHSA-2011:0534 http://rhn.redhat.com/errata/RHSA-2011-0534.html http://secunia.com/advisories/44132 http://secunia.com/advisories/44393 http://secunia.com/advisories/44658 http://secunia.com/advisories/44660 http://secunia.com/advisories/44900 SuSE Security Announcement: SUSE-SU-2011:0533 (Google Search) https://hermes.opensuse.org/messages/8572547 SuSE Security Announcement: openSUSE-SU-2011:0510 (Google Search) http://lists.opensuse.org/opensuse-updates/2011-05/msg00043.html https://www.ubuntu.com/usn/USN-1145-1/ XForce ISS Database: kvm-virtioblk-priv-escalation(67062) https://exchange.xforce.ibmcloud.com/vulnerabilities/67062 Common Vulnerability Exposure (CVE) ID: CVE-2011-1751 BugTraq ID: 47927 http://www.securityfocus.com/bid/47927 http://blog.nelhage.com/2011/08/breaking-out-of-kvm/ https://bugzilla.redhat.com/show_bug.cgi?id=699773 https://github.com/nelhage/virtunoid http://lists.nongnu.org/archive/html/qemu-devel/2011-05/msg01810.html http://www.openwall.com/lists/oss-security/2011/05/19/2 http://www.osvdb.org/73395 http://secunia.com/advisories/44458 http://secunia.com/advisories/44648
Copyright	Copyright (c) 2011 E-Soft Inc. http://www.securityspace.com

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