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CVE-2019-3887

CVSS v3.1 5.6 (Medium)
56% Progress
CVSS v2.0 4.7 (Medium)
47% Progress
EPSS 0.05 % (21th)
0.05% Progress
Affected Products 11
Advisories 9
Info CVSS EPSS Affected Configurations References Security Advisories Packages & Software OVAL Tools, Exploits & PoC Graph Web & Social Timeline

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.

Weaknesses
CWE-863
Incorrect Authorization
CVE Status
PUBLISHED
CNA
Red Hat, Inc.
Published Date
2019-04-09 16:29:01
(5 years ago)
Updated Date
2023-02-12 23:38:42
(19 months ago)

Affected Products

Canonical

Fedoraproject

Linux

Redhat

Configuration #1

    CPE23 From Up To
  Linux Kernel from 4.16 version cpe:2.3:o:linux:linux_kernel >= 4.16

Configuration #2

    CPE23 From Up To
  Fedoraproject Fedora 29 cpe:2.3:o:fedoraproject:fedora:29

Configuration #3

    CPE23 From Up To
  Canonical Ubuntu Linux 18.04 cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts
  Canonical Ubuntu Linux 18.10 cpe:2.3:o:canonical:ubuntu_linux:18.10
  Canonical Ubuntu Linux 19.04 cpe:2.3:o:canonical:ubuntu_linux:19.04

Configuration #4

    CPE23 From Up To
  Redhat Enterprise Linux 8.0 cpe:2.3:o:redhat:enterprise_linux:8.0
  Redhat Enterprise Linux Eus 8.1 cpe:2.3:o:redhat:enterprise_linux_eus:8.1
  Redhat Enterprise Linux Eus 8.2 cpe:2.3:o:redhat:enterprise_linux_eus:8.2
  Redhat Enterprise Linux Eus 8.4 cpe:2.3:o:redhat:enterprise_linux_eus:8.4
  Redhat Enterprise Linux for Real Time 8 cpe:2.3:o:redhat:enterprise_linux_for_real_time:8
  Redhat Enterprise Linux for Real Time For Nfv 8 cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv:8
  Redhat Enterprise Linux for Real Time For Nfv Tus 8.2 cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv_tus:8.2
  Redhat Enterprise Linux for Real Time For Nfv Tus 8.4 cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv_tus:8.4
  Redhat Enterprise Linux for Real Time Tus 8.2 cpe:2.3:o:redhat:enterprise_linux_for_real_time_tus:8.2
  Redhat Enterprise Linux for Real Time Tus 8.4 cpe:2.3:o:redhat:enterprise_linux_for_real_time_tus:8.4
  Redhat Enterprise Linux Server Aus 8.2 cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2
  Redhat Enterprise Linux Server Aus 8.4 cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4
  Redhat Enterprise Linux Server Tus 8.2 cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2
  Redhat Enterprise Linux Server Tus 8.4 cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4