CVE - CVE-2009-4031

CVE-ID
CVE-2009-4031	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
The do_insn_fetch function in arch/x86/kvm/emulate.c in the x86 emulator in the KVM subsystem in the Linux kernel before 2.6.32-rc8-next-20091125 tries to interpret instructions that contain too many bytes to be valid, which allows guest OS users to cause a denial of service (increased scheduling latency) on the host OS via unspecified manipulations related to SMP support.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:37130 URL:http://www.securityfocus.com/bid/37130 MISC:37720 URL:http://secunia.com/advisories/37720 MISC:FEDORA-2009-13098 URL:https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00777.html MISC:SUSE-SA:2010:018 URL:http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00006.html MISC:[oss-security] 20091125 CVE request: kernel: KVM: x86 emulator: limit instructions to 15 bytes URL:http://www.openwall.com/lists/oss-security/2009/11/25/3 MISC:[oss-security] 20091125 Re: CVE request: kernel: KVM: x86 emulator: limit instructions to 15 bytes URL:http://www.openwall.com/lists/oss-security/2009/11/25/1 MISC:http://git.kernel.org/?p=linux/kernel/git/avi/kvm.git%3Ba=commit%3Bh=e42d9b8141d1f54ff72ad3850bb110c95a5f3b88 URL:http://git.kernel.org/?p=linux/kernel/git/avi/kvm.git%3Ba=commit%3Bh=e42d9b8141d1f54ff72ad3850bb110c95a5f3b88 MISC:http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.32-rc8-next-20091125.gz URL:http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.32-rc8-next-20091125.gz MISC:https://bugzilla.redhat.com/show_bug.cgi?id=541160 URL:https://bugzilla.redhat.com/show_bug.cgi?id=541160 MISC:oval:org.mitre.oval:def:11089 URL:https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11089
Assigning CNA
Red Hat, Inc.
Date Record Created
20091120	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20091120)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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