VULNERABILITY INTELLIGENCE

CVE-2009-3640

CVSS score4.9 MEDIUM
EPSS probability0.38%
CISA KEVNot currently listed
Published2009-10-29
Last modified2026-06-16
CVSS vectorAV:L/AC:L/Au:N/C:N/I:N/A:C

Description

The update_cr8_intercept function in arch/x86/kvm/x86.c in the KVM subsystem in the Linux kernel before 2.6.32-rc1 does not properly handle the absence of an Advanced Programmable Interrupt Controller (APIC), which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly gain privileges via a call to the kvm_vcpu_ioctl function.

Weakness classification

  • CWE-20: Improper Input Validation

Primary references