Test ID:	1.3.6.1.4.1.25623.1.0.66476
Category:	Red Hat Local Security Checks
Title:	RedHat Security Advisory RHSA-2009:1659
Summary:	The remote host is missing updates announced in;advisory RHSA-2009:1659.;;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.;;On x86 platforms, the do_insn_fetch() function did not limit the amount of;instruction bytes fetched per instruction. Users in guest operating systems;could leverage this flaw to cause large latencies on SMP hosts that could;lead to a local denial of service on the host operating system. This;update fixes this issue by imposing the architecturally-defined 15 byte;length limit for instructions. (CVE-2009-4031);;All KVM users should upgrade to these updated packages, which contain;backported patches to resolve these issues. Note: The procedure in the
Description:	Summary: The remote host is missing updates announced in advisory RHSA-2009:1659. 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. On x86 platforms, the do_insn_fetch() function did not limit the amount of instruction bytes fetched per instruction. Users in guest operating systems could leverage this flaw to cause large latencies on SMP hosts that could lead to a local denial of service on the host operating system. This update fixes this issue by imposing the architecturally-defined 15 byte length limit for instructions. (CVE-2009-4031) All KVM users should upgrade to these updated packages, which contain backported patches to resolve these issues. Note: The procedure in the 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 CVSS Score: 7.8 CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2009-4031 37130 http://www.securityfocus.com/bid/37130 37720 http://secunia.com/advisories/37720 FEDORA-2009-13098 https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00777.html SUSE-SA:2010:018 http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00006.html [oss-security] 20091125 CVE request: kernel: KVM: x86 emulator: limit instructions to 15 bytes http://www.openwall.com/lists/oss-security/2009/11/25/3 [oss-security] 20091125 Re: CVE request: kernel: KVM: x86 emulator: limit instructions to 15 bytes http://www.openwall.com/lists/oss-security/2009/11/25/1 http://git.kernel.org/?p=linux/kernel/git/avi/kvm.git%3Ba=commit%3Bh=e42d9b8141d1f54ff72ad3850bb110c95a5f3b88 http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.32-rc8-next-20091125.gz https://bugzilla.redhat.com/show_bug.cgi?id=541160 oval:org.mitre.oval:def:11089 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11089
Copyright	Copyright (C) 2009 E-Soft Inc.

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