CVE-2009-4031

N/A Unknown
Published: November 29, 2009 Modified: April 23, 2026
View on NVD

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.

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References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://git.kernel.org/?p=linux/kernel/git/avi/kvm.git%3Ba=commit%3Bh=e42d9b8141d1f54ff72ad3850bb110c95a5f3b88
Source: secalert@redhat.com
http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00006.html
Source: secalert@redhat.com
Third Party Advisory
http://secunia.com/advisories/37720
Source: secalert@redhat.com
Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.32-rc8-next-20091125.gz
Source: secalert@redhat.com
Patch Vendor Advisory
http://www.openwall.com/lists/oss-security/2009/11/25/1
Source: secalert@redhat.com
Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2009/11/25/3
Source: secalert@redhat.com
Mailing List Third Party Advisory
http://www.securityfocus.com/bid/37130
Source: secalert@redhat.com
Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=541160
Source: secalert@redhat.com
Issue Tracking Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11089
Source: secalert@redhat.com
Third Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00777.html
Source: secalert@redhat.com
Third Party Advisory
http://git.kernel.org/?p=linux/kernel/git/avi/kvm.git%3Ba=commit%3Bh=e42d9b8141d1f54ff72ad3850bb110c95a5f3b88
Source: af854a3a-2127-422b-91ae-364da2661108
http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00006.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://secunia.com/advisories/37720
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.32-rc8-next-20091125.gz
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Vendor Advisory
http://www.openwall.com/lists/oss-security/2009/11/25/1
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2009/11/25/3
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
http://www.securityfocus.com/bid/37130
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=541160
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11089
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2009-December/msg00777.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

20 reference(s) from NVD

Quick Stats

CVSS v3 Score
N/A / 10.0
EPSS (Exploit Probability)
2.1%
84th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-20

Affected Vendors

linux

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