vulnerability
Ubuntu: (Multiple Advisories) (CVE-2019-3887): Linux kernel vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:M/Au:N/C:N/I:N/A:C) | Apr 9, 2019 | May 15, 2019 | Aug 18, 2025 |
Severity
5
CVSS
(AV:L/AC:M/Au:N/C:N/I:N/A:C)
Published
Apr 9, 2019
Added
May 15, 2019
Modified
Aug 18, 2025
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.
Solutions
ubuntu-upgrade-linux-image-4-18-0-1011-gcpubuntu-upgrade-linux-image-4-18-0-1012-kvmubuntu-upgrade-linux-image-4-18-0-1014-raspi2ubuntu-upgrade-linux-image-4-18-0-1016-awsubuntu-upgrade-linux-image-4-18-0-1018-azureubuntu-upgrade-linux-image-4-18-0-20-genericubuntu-upgrade-linux-image-4-18-0-20-generic-lpaeubuntu-upgrade-linux-image-4-18-0-20-lowlatencyubuntu-upgrade-linux-image-4-18-0-20-snapdragonubuntu-upgrade-linux-image-5-0-0-1006-awsubuntu-upgrade-linux-image-5-0-0-1006-azureubuntu-upgrade-linux-image-5-0-0-1006-gcpubuntu-upgrade-linux-image-5-0-0-1006-kvmubuntu-upgrade-linux-image-5-0-0-1008-raspi2ubuntu-upgrade-linux-image-5-0-0-15-genericubuntu-upgrade-linux-image-5-0-0-15-generic-lpaeubuntu-upgrade-linux-image-5-0-0-15-lowlatencyubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-azureubuntu-upgrade-linux-image-gcpubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-hwe-18-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-hwe-18-04ubuntu-upgrade-linux-image-gkeubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-hwe-18-04ubuntu-upgrade-linux-image-powerpc-e500mcubuntu-upgrade-linux-image-powerpc-smpubuntu-upgrade-linux-image-powerpc64-embubuntu-upgrade-linux-image-powerpc64-smpubuntu-upgrade-linux-image-raspi2ubuntu-upgrade-linux-image-snapdragonubuntu-upgrade-linux-image-snapdragon-hwe-18-04ubuntu-upgrade-linux-image-virtualubuntu-upgrade-linux-image-virtual-hwe-18-04
References
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