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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2009-4031 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
http://git.kernel.org/?p=linux/kernel/git/avi/kvm.git%3Ba=commit%3Bh=e42d9b8141d1f54ff72ad3850bb110c95a5f3b88 CVE, Inc., Red Hat
http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00006.html CVE, Inc., Red Hat Third Party Advisory 
http://secunia.com/advisories/37720 CVE, Inc., Red Hat Third Party Advisory 
http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.32-rc8-next-20091125.gz CVE, Inc., Red Hat Patch  Vendor Advisory 
http://www.openwall.com/lists/oss-security/2009/11/25/1 CVE, Inc., Red Hat Mailing List  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2009/11/25/3 CVE, Inc., Red Hat Mailing List  Third Party Advisory 
http://www.securityfocus.com/bid/37130 CVE, Inc., Red Hat Third Party Advisory  VDB Entry 
https://bugzilla.redhat.com/show_bug.cgi?id=541160 CVE, Inc., Red Hat Issue Tracking  Third Party Advisory 
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11089 CVE, Inc., Red Hat Third Party Advisory 
https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00777.html CVE, Inc., Red Hat Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-20 Improper Input Validation cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

6 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2009-4031
NVD Published Date:
11/29/2009
NVD Last Modified:
04/08/2025
Source:
Red Hat, Inc.