CVE-2023-30456

Aliases:UBUNTU-CVE-2023-30456DEBIAN-CVE-2023-30456
Advisory lineage Upstream: 0 Downstream: 32
Modified
Published: 10 Apr 2023, 00:00
Last modified:19 Mar 2025, 15:43

Vulnerability Summary

Overall Risk (default)
medium
26/100
CVSS Score
6.5 MEDIUM
v3.1 (cve.org)
EPSS Score
0.47% LOW
0% probability +0.46%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

10 Apr 2023, 00:00
Published
Vulnerability first disclosed
19 Mar 2025, 15:43
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

EPSS Trends

Current EPSS score: 0.47%• Percentile: 40%

Techniques & Countermeasures

  • CWE-754•Improper Check for Unusual or Exceptional Conditions

    The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product.

Affected Systems

  • debian•linux

    < 5.10.178-1 | < 6.1.25-1 | < 6.1.25-1 | < 6.1.25-1

  • 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

    all | < 5.4.0-1064.70 | < 5.15.0-1017.19

  • 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

Showing first 50 affected entries in server-rendered view.

References (26)