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.

Score
CVSS 3.0 6.7 Medium
Status
Modified - secalert@redhat.com
Published
2019-04-09
Last modified
2024-08-04
Weaknesses
CWE-863

Affected products

References

 
 
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