Improper Input Validation Affecting kvm-tools package, versions <0:83-105.0.1.el5_4.13


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
3.11% (87th percentile)

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  • Snyk IDSNYK-ORACLE5-KVMTOOLS-2453491
  • published10 Apr 2022
  • disclosed29 Nov 2009

Introduced: 29 Nov 2009

CVE-2009-4031  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Oracle:5 kvm-tools to version 0:83-105.0.1.el5_4.13 or higher.
This issue was patched in ELSA-2009-1659.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kvm-tools package and not the kvm-tools package as distributed by Oracle. See How to fix? for Oracle:5 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1