| Revision Date: | 2019-04-09 | Version: | 1 | | Title: | CVE-2019-3887 on Ubuntu 16.04 LTS (xenial) - medium. | | 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. Marc Orr discovered that the KVM hypervisor implementation in the Linux kernel did not properly restrict APIC MSR register values when nested virtualization is used. An attacker in a guest vm could use this to cause a denial of service (host OS crash).
| | Family: | unix | Class: | vulnerability | | Status: | | Reference(s): | CVE-2019-3887
| | Platform(s): | Ubuntu 16.04 LTS
| Product(s): | | | Definition Synopsis | | Ubuntu 16.04 LTS (xenial) is installed. AND Package Information
linux package in xenial, is related to the CVE in some way and has been fixed (note: '4.2.0-16.19').
OR linux-aws package in xenial, is related to the CVE in some way and has been fixed (note: '4.4.0-1001.10').
OR linux-aws-hwe package in xenial, is related to the CVE in some way and has been fixed (note: '4.15.0-1030.31~16.04.1').
OR linux-azure package in xenial, is related to the CVE in some way and has been fixed (note: '4.11.0-1009.9').
OR linux-euclid package in xenial, is related to the CVE in some way and has been fixed (note: '4.4.0-9019.20').
OR linux-flo: while related to the CVE in some way, a decision has been made to ignore this issue (note: 'abandoned').
OR linux-gcp package in xenial, is related to the CVE in some way and has been fixed (note: '4.10.0-1004.4').
OR linux-gke: while related to the CVE in some way, a decision has been made to ignore this issue (note: 'end-of-life').
OR linux-goldfish: while related to the CVE in some way, a decision has been made to ignore this issue (note: 'end-of-life').
OR linux-hwe package in xenial, is related to the CVE in some way and has been fixed (note: '4.8.0-36.36~16.04.1').
OR linux-kvm package in xenial, is related to the CVE in some way and has been fixed (note: '4.4.0-1004.9').
OR linux-mako: while related to the CVE in some way, a decision has been made to ignore this issue (note: 'abandoned').
OR linux-meta package in xenial, is related to the CVE in some way and has been fixed (note: '4.2.0-16.19').
OR linux-meta-aws package in xenial, is related to the CVE in some way and has been fixed (note: '4.4.0-1001.10').
OR linux-meta-aws-hwe package in xenial, is related to the CVE in some way and has been fixed (note: '4.15.0-1030.31~16.04.1').
OR linux-meta-azure package in xenial, is related to the CVE in some way and has been fixed (note: '4.11.0-1009.9').
OR linux-meta-gcp package in xenial, is related to the CVE in some way and has been fixed (note: '4.10.0-1004.4').
OR linux-meta-hwe package in xenial, is related to the CVE in some way and has been fixed (note: '4.8.0-36.36~16.04.1').
OR linux-meta-kvm package in xenial, is related to the CVE in some way and has been fixed (note: '4.4.0-1004.9').
OR linux-meta-oracle package in xenial, is related to the CVE in some way and has been fixed (note: '4.15.0-1007.9~16.04.1').
OR linux-meta-raspi2 package in xenial, is related to the CVE in some way and has been fixed (note: '4.2.0-1013.19').
OR linux-meta-snapdragon package in xenial, is related to the CVE in some way and has been fixed (note: '4.4.0-1012.12').
OR linux-oem: while related to the CVE in some way, a decision has been made to ignore this issue (note: 'was needs-triage now end-of-life').
OR linux-oracle package in xenial, is related to the CVE in some way and has been fixed (note: '4.15.0-1007.9~16.04.1').
OR linux-raspi2 package in xenial, is related to the CVE in some way and has been fixed (note: '4.2.0-1013.19').
OR linux-signed package in xenial, is related to the CVE in some way and has been fixed (note: '4.2.0-16.19').
OR linux-signed-azure package in xenial, is related to the CVE in some way and has been fixed (note: '4.11.0-1009.9').
OR linux-signed-gcp package in xenial, is related to the CVE in some way and has been fixed (note: '4.10.0-1004.4').
OR linux-signed-hwe package in xenial, is related to the CVE in some way and has been fixed (note: '4.8.0-36.36~16.04.1').
OR linux-signed-oracle package in xenial, is related to the CVE in some way and has been fixed (note: '4.15.0-1007.9~16.04.1').
OR linux-snapdragon package in xenial, is related to the CVE in some way and has been fixed (note: '4.4.0-1012.12').
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