ID de Prueba:	1.3.6.1.4.1.25623.1.0.880812
Categoría:	CentOS Local Security Checks
Título:	CentOS Update for kvm-83-105.el5_ CESA-2009:1465 centos5 i386
Resumen:	The remote host is missing an update for the 'kvm-83-105.el5_'; package(s) announced via the referenced advisory.
Descripción:	Summary: The remote host is missing an update for the 'kvm-83-105.el5_' 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. KVM is a Linux kernel module built for the standard Red Hat Enterprise Linux kernel. The kvm_emulate_hypercall() implementation was missing a check for the Current Privilege Level (CPL). A local, unprivileged user in a virtual machine could use this flaw to cause a local denial of service or escalate their privileges within that virtual machine. (CVE-2009-3290) This update also fixes the following bugs: * non-maskable interrupts (NMI) were not supported on systems with AMD processors. As a consequence, Windows Server 2008 R2 guests running with more than one virtual CPU assigned on systems with AMD processors would hang at the Windows shut down screen when a restart was attempted. This update adds support for NMI filtering on systems with AMD processors, allowing clean restarts of Windows Server 2008 R2 guests running with multiple virtual CPUs. (BZ#520694) * significant performance issues for guests running 64-bit editions of Windows. This update improves performance for guests running 64-bit editions of Windows. (BZ#521793) * Windows guests may have experienced time drift. (BZ#521794) * removing the Red Hat VirtIO Ethernet Adapter from a guest running Windows Server 2008 R2 caused KVM to crash. With this update, device removal should not cause this issue. (BZ#524557) All KVM users should upgrade to these updated packages, which contain backported patches to resolve these issues. Note: The procedure in the Solution section must be performed before this update takes effect. Affected Software/OS: kvm-83-105.el5_ on CentOS 5 Solution: Please install the updated packages. CVSS Score: 7.2 CVSS Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
Referencia Cruzada:	Common Vulnerability Exposure (CVE) ID: CVE-2009-3290 http://www.openwall.com/lists/oss-security/2009/09/18/1 http://www.openwall.com/lists/oss-security/2009/09/21/1 http://www.openwall.com/lists/oss-security/2009/09/22/8 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11328 http://www.redhat.com/support/errata/RHSA-2009-1465.html http://secunia.com/advisories/37105 http://www.ubuntu.com/usn/USN-852-1
Copyright	Copyright (C) 2011 Greenbone Networks GmbH

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