Early Access — Mondoo Vulnerability Intelligence is currently in preview.
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.
4.13.0-16.193.11.0-12.194.2.0-16.194.4.0-1002.24.4.0-1001.104.15.0-1001.14.15.0-1030.31~16.04.14.15.0-1023.24~14.04.14.11.0-1009.94.15.0-1002.24.15.0-1003.34.15.0-1004.44.15.0-1008.84.15.0-1009.94.15.0-1012.124.15.0-1013.134.15.0-1014.144.15.0-1018.184.15.0-1019.19+14 more4.18.0-1018.18~18.04.14.4.0-9019.204.15.0-1001.14.10.0-1004.44.18.0-1004.5~18.04.14.18.0-1005.6~18.04.14.18.0-1006.7~18.04.14.18.0-1007.8~18.04.14.18.0-1008.9~18.04.14.18.0-1009.10~18.04.14.18.0-1011.12~18.04.14.18.0-13.14~18.04.14.18.0-14.15~18.04.14.18.0-15.16~18.04.14.18.0-16.17~18.04.14.18.0-17.18~18.04.14.18.0-18.19~18.04.14.18.0-20.21~18.04.14.8.0-36.36~16.04.15.0.0-15.16~18.04.14.4.0-1004.94.15.0-1002.24.4.0-13.29~14.04.14.15.0-1002.34.15.0-1007.9~16.04.14.15.0-1007.94.2.0-1013.194.13.0-1005.54.4.0-1012.124.4.0-1077.82Exploitability
AV:LAC:HPR:HUI:NScope
S:CImpact
C:LI:LA:HCVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:H