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CVE-2009-4031

nvd nist
Published: Nov 29, 2009Modified: Apr 23, 2026

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7.8
Vector
AV:N/AC:L/Au:N/C:N/I:N/A:C
Exploitability: 10.0 / Impact: 6.9
Source: 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.

Affected (9)

Products: Linux: Linux Kernel
Linux
1 product
Linux Kernel
Configuration A
9 vulnerable
Vulnerable SoftwareAffected Versions
Linux
Linux Kernel
Before 2.6.32
Linux Kernel
Version 2.6.32
Linux Kernel
Version 2.6.32 rc1
Linux Kernel
Version 2.6.32 rc2
Linux Kernel
Version 2.6.32 rc3
Linux Kernel
Version 2.6.32 rc4
Linux Kernel
Version 2.6.32 rc5
Linux Kernel
Version 2.6.32 rc6
Linux Kernel
Version 2.6.32 rc7

Related CWEs

CWE-20
Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

References (20)

Source: secalert@redhat.com
Source: secalert@redhat.com
Third Party Advisory
Source: secalert@redhat.com
Third Party Advisory
Source: secalert@redhat.com
PatchVendor Advisory
Source: secalert@redhat.com
Mailing ListThird Party Advisory
Source: secalert@redhat.com
Mailing ListThird Party Advisory
Source: secalert@redhat.com
Third Party AdvisoryVDB Entry
Source: secalert@redhat.com
Issue TrackingThird Party Advisory
Source: secalert@redhat.com
Third Party Advisory
Source: secalert@redhat.com
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party AdvisoryVDB Entry
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

No history available yet.