CVE-2023-30456 Affecting kernel-uek-devel package, versions <0:5.4.17-2136.320.7.el7uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELUEKDEVEL-5706908
  • published10 May 2023
  • disclosed10 Apr 2023

Introduced: 10 Apr 2023

CVE-2023-30456  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-uek-devel to version 0:5.4.17-2136.320.7.el7uek or higher.
This issue was patched in ELSA-2023-12394.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-devel package and not the kernel-uek-devel package as distributed by Oracle. See How to fix? for Oracle:7 relevant fixed versions and status.

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 Scores

version 3.1