UBUNTU-CVE-2023-30456

Advisory lineage Upstream: 1 Downstream: 15
Upstream
CVE-2023-30456
Published: 10 Apr 2023, 02:15
Last modified:03 Jun 2026, 13:36

Vulnerability Summary

Overall Risk (default)
medium
26/100
CVSS Score
6.5 MEDIUM
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

10 Apr 2023, 02:15
Published
Vulnerability first disclosed
03 Jun 2026, 13:36
Last Modified
Vulnerability information updated

Description

An issue was discovered in arch/x86/kvm/vmx/nested.c in the Linux kernel before 6.2.8. nVMX on x86_64 lacks consistency checks for CR0 and CR4.

CVSS Metrics

  • v3.1•MEDIUM•Score: 6.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Affected Systems

  • ubuntu•linux

    < 3.13.0-197.248 | < 4.4.0-241.275 | < 4.15.0-212.223 | < 5.4.0-150.167 | < 5.15.0-73.80

  • ubuntu•linux-aws

    < 4.4.0-1119.125 | < 4.4.0-1157.172 | < 4.15.0-1157.170 | < 5.4.0-1103.111 | < 5.15.0-1037.41

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    all

  • ubuntu•linux-aws-5.13

    all

  • ubuntu•linux-aws-5.15

    < 5.15.0-1037.41~20.04.1

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1103.111~18.04.1

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-fips

    < 4.15.0-2096.102 | all | < 5.4.0-1103.111+fips1

  • ubuntu•linux-aws-hwe

    < 4.15.0-1157.170~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1166.181~14.04.1 | < 4.15.0-1166.181~16.04.1 | all | < 5.4.0-1109.115 | < 5.15.0-1039.46

  • ubuntu•linux-azure-4.15

    < 4.15.0-1166.181

  • ubuntu•linux-azure-5.11

    all

  • ubuntu•linux-azure-5.13

    all

  • ubuntu•linux-azure-5.15

    < 5.15.0-1039.46~20.04.1

  • ubuntu•linux-azure-5.19

    all

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1109.115~18.04.1

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    all | < 5.15.0-1039.46.1

  • ubuntu•linux-azure-fips

    < 4.15.0-2075.81 | all | < 5.4.0-1109.115+fips1

  • ubuntu•linux-bluefield

    < 5.15.0-1017.19 | < 5.4.0-1064.70 | < 5.15.0-1017.19 | all

  • ubuntu•linux-fips

    < 4.4.0-1089.96 | all | < 4.15.0-1112.123 | < 5.4.0-1078.87

  • ubuntu•linux-gcp

    < 4.15.0-1151.167~16.04.1 | all | < 5.4.0-1106.115 | < 5.15.0-1035.43

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1151.167

  • ubuntu•linux-gcp-5.11

    all

  • ubuntu•linux-gcp-5.13

    all

  • ubuntu•linux-gcp-5.15

    < 5.15.0-1035.43~20.04.1

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1106.115~18.04.1

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-fips

    < 4.15.0-2059.64 | all | < 5.4.0-1106.115+fips1

  • ubuntu•linux-gke

    < 5.4.0-1100.107 | < 5.15.0-1034.39

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.15

    < 5.15.0-1034.39~20.04.1

  • ubuntu•linux-gke-5.4

    all

  • ubuntu•linux-gkeop

    < 5.4.0-1070.74 | < 5.15.0-1021.26

  • ubuntu•linux-gkeop-5.15

    < 5.15.0-1021.26~20.04.1

  • ubuntu•linux-gkeop-5.4

    all

  • ubuntu•linux-hwe

    < 4.15.0-212.223~16.04.1 | all

  • ubuntu•linux-hwe-5.11

    all

  • ubuntu•linux-hwe-5.13

    all

  • ubuntu•linux-hwe-5.15

    < 5.15.0-73.80~20.04.1

  • ubuntu•linux-hwe-5.19

    < 5.19.0-43.44~22.04.1

  • ubuntu•linux-hwe-5.4

    < 5.4.0-150.167~18.04.1

  • ubuntu•linux-hwe-5.8

    all

  • ubuntu•linux-hwe-edge

    all | all

  • ubuntu•linux-ibm

    < 5.4.0-1050.55 | < 5.15.0-1031.34

Showing first 50 affected entries in server-rendered view.

References (21)