CVE-2020-2732

Aliases:UBUNTU-CVE-2020-2732DEBIAN-CVE-2020-2732
Advisory lineage Upstream: 0 Downstream: 32
Modified
Published: 08 Apr 2020, 21:10
Last modified:30 Sept 2024, 15:47

Vulnerability Summary

Overall Risk (default)
medium
27/100
CVSS Score
6.8 MEDIUM
v3.1 (nvd)
EPSS Score
0.93% LOW
1% probability +0.49%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

08 Apr 2020, 21:10
Published
Vulnerability first disclosed
30 Sept 2024, 15:47
Last Modified
Vulnerability information updated

Description

A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.8CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
  • v3.1•MEDIUM•Score: 6.8CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
  • v2.0•LOW•Score: 2.3AV:A/AC:M/Au:S/C:P/I:N/A:N

EPSS Trends

Current EPSS score: 0.93%• Percentile: 59%

Techniques & Countermeasures

  • CWE-200•Exposure of Sensitive Information to an Unauthorized Actor

    The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Affected Systems

  • debian•linux

    < 5.5.13-1 | < 5.5.13-1 | < 5.5.13-1 | < 5.5.13-1

  • ubuntu•linux

    all | < 4.4.0-176.206 | < 4.15.0-91.92

  • ubuntu•linux-aws

    < 4.4.0-1064.68 | < 4.4.0-1104.115 | < 4.15.0-1063.67

  • ubuntu•linux-aws-5.0

    < 5.0.0-1027.30

  • ubuntu•linux-aws-fips

    < 4.15.0-2018.18 | all

  • ubuntu•linux-aws-hwe

    < 4.15.0-1063.67~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1074.79~14.04.1 | < 4.15.0-1075.80 | < 5.0.0-1035.37

  • ubuntu•linux-azure-5.3

    < 5.3.0-1016.17~18.04.1

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    all

  • ubuntu•linux-azure-fips

    < 4.15.0-2006.7 | all

  • ubuntu•linux-bluefield

    all

  • ubuntu•linux-fips

    < 4.4.0-1031.36 | all

  • ubuntu•linux-gcp

    < 4.15.0-1058.62 | < 5.0.0-1033.34

  • ubuntu•linux-gcp-5.3

    < 5.3.0-1014.15~18.04.1

  • ubuntu•linux-gcp-edge

    all

  • ubuntu•linux-gcp-fips

    all

  • ubuntu•linux-gke

    all

  • ubuntu•linux-gke-4.15

    < 4.15.0-1055.58

  • ubuntu•linux-gke-5.0

    < 5.0.0-1032.33

  • ubuntu•linux-gke-5.3

    < 5.3.0-1014.15~18.04.1

  • ubuntu•linux-hwe

    < 4.15.0-91.92~16.04.1 | < 5.3.0-42.34~18.04.1

  • ubuntu•linux-hwe-edge

    all | all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 4.4.0-1068.75 | < 4.15.0-1056.57

  • ubuntu•linux-lts-xenial

    < 4.4.0-176.206~14.04.1

  • ubuntu•linux-oem

    < 4.15.0-1076.86

  • ubuntu•linux-oem-osp1

    < 5.0.0-1043.48

  • ubuntu•linux-oracle

    < 4.15.0-1035.38~16.04.1 | < 4.15.0-1035.39

  • ubuntu•linux-oracle-5.0

    < 5.0.0-1013.18

  • ubuntu•linux-raspi-realtime

    all

  • ubuntu•linux-raspi2

    all

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    all | all

  • oracle corporation•oracle linux

    7 | 6

  • redhat•enterprise_linux

    7.0 | 8.0

References (23)