CVE-2009-4031

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.8 UNKNOWN
NETWORK
LOW
AV:N/AC:L/Au:N/C:N/I:N/A:C
redhatCNA
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CVEADP
---
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Base Score
CVSS 3.x
EPSS Score
Percentile: 83%
VendorProductVersion
linuxlinux_kernel
𝑥
< 2.6.32
linuxlinux_kernel
2.6.32
linuxlinux_kernel
2.6.32:rc1
linuxlinux_kernel
2.6.32:rc2
linuxlinux_kernel
2.6.32:rc3
linuxlinux_kernel
2.6.32:rc4
linuxlinux_kernel
2.6.32:rc5
linuxlinux_kernel
2.6.32:rc6
linuxlinux_kernel
2.6.32:rc7
𝑥
= Vulnerable software versions
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
kvm
natty
dne
maverick
dne
lucid
dne
karmic
dne
jaunty
ignored
intrepid
ignored
hardy
ignored
dapper
dne
linux
natty
not-affected
maverick
not-affected
lucid
not-affected
karmic
Fixed 2.6.31-19.56
released
jaunty
Fixed 2.6.28-18.59
released
intrepid
Fixed 2.6.27-17.45
released
hardy
Fixed 2.6.24-27.65
released
dapper
dne
linux-ec2
natty
dne
maverick
ignored
lucid
not-affected
karmic
Fixed 2.6.31-19.56
released
jaunty
dne
intrepid
dne
hardy
dne
dapper
dne
linux-fsl-imx51
natty
dne
maverick
dne
lucid
not-affected
karmic
Fixed 2.6.31-108.21
released
hardy
dne
dapper
dne
linux-lts-backport-maverick
natty
dne
maverick
dne
lucid
not-affected
karmic
dne
jaunty
dne
intrepid
dne
hardy
dne
dapper
dne
linux-mvl-dove
natty
dne
maverick
not-affected
lucid
not-affected
karmic
Fixed 2.6.31-211.22
released
hardy
dne
dapper
dne
linux-source-2.6.15
natty
dne
maverick
dne
lucid
dne
karmic
dne
jaunty
dne
intrepid
dne
hardy
dne
dapper
not-affected
linux-ti-omap4
natty
not-affected
maverick
not-affected
lucid
dne
karmic
dne
hardy
dne
dapper
dne
qemu-kvm
natty
not-affected
maverick
not-affected
lucid
not-affected
karmic
not-affected
jaunty
dne
intrepid
dne
hardy
dne
dapper
dne