Improper Input Validation Affecting torvalds/linux package, versions [,2.6.32)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
3.11% (87th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3004570
  • published26 Jan 2022
  • disclosed29 Nov 2009
  • creditUnknown

Introduced: 29 Nov 2009

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

How to fix?

Upgrade torvalds/linux to version 2.6.32 or higher.

Overview

Affected versions of this package are vulnerable to Improper Input Validation. 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.

References

CVSS Base Scores

version 3.1