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CVE-2019-3887

—
CVSS 3.1
5.6 medium
EPSS
<1%p29
Published
()
Modified
Description

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.

Vendors
linuxfedoraprojectcanonicalredhat
Products
linux kernel, fedora, ubuntu linux, enterprise linux, enterprise linux eus, enterprise linux for real time, enterprise linux for real time for nfv, enterprise linux for real time for nfv tus, enterprise linux for real time tus, enterprise linux server aus, enterprise linux server tus
Weakness
CWE-863
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
NVD CVE.org GitHub PoCs EPSS (0.4%)

In the news

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