vulnerability

Debian: CVE-2019-3887: linux -- security update

Severity
5
CVSS
(AV:L/AC:M/Au:N/C:N/I:N/A:C)
Published
04/09/2019
Added
07/30/2024
Modified
11/27/2024

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.

Solution

debian-upgrade-linux
Title
NEW

Explore Exposure Command

Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.