Vulnerability Database

289,599

Total vulnerabilities in the database

CVE-2019-3887

A flaw was found in the way KVM hypervisor handled x2APIC Machine Specific Rregister (MSR) access with nested(=1) virtualization enabled. In that, L1 guest could access L0's APIC register values via L2 guest, when 'virtualize x2APIC mode' is enabled. A guest could use this flaw to potentially crash the host kernel resulting in DoS issue. Kernel versions from 4.16 and newer are vulnerable to this issue.

  • Published: Apr 9, 2019
  • Updated: Apr 13, 2023
  • CVE: CVE-2019-3887
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 5.6
  • AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H

CVSS v2:

  • Severity: Low
  • Score: 4.7
  • AV:L/AC:M/Au:N/C:N/I:N/A:C

CWEs: