VulnerabilityModified
CVE-2023-30456
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.
MEDIUM 6.5EPSS 0.47%
Does this matter?
Lower severity and a low EPSS score (0.47%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 6.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- EPSS
- 0.47% probability · 40th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-754
- Affected
- linux/linux kernel
- Source
- cve@mitre.org
References
- http://packetstormsecurity.com/files/173757/Kernel-Live-Patch-Security-Notice-LSN-0096-1.html
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.8Patch
- https://github.com/torvalds/linux/commit/112e66017bff7f2837030f34c2bc19501e9212d5Release Notes
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
- https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
- https://security.netapp.com/advisory/ntap-20230511-0007/
- http://packetstormsecurity.com/files/173757/Kernel-Live-Patch-Security-Notice-LSN-0096-1.html
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.8Patch
- https://github.com/torvalds/linux/commit/112e66017bff7f2837030f34c2bc19501e9212d5Release Notes
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
- https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
- https://security.netapp.com/advisory/ntap-20230511-0007/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.