CVE-2023-30456 | BDVDB-2026-199674 Detail
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.
Impact#
Per CVSS v3.1: confidentiality impact none, integrity impact none, availability impact high. Attack vector: local.
Weaknesses#
- CWE-754 Improper Check for Unusual or Exceptional Conditions
References#
- https://github.com/torvalds/linux/commit/112e66017bff7f2837030f34c2bc19501e9212d5
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.8
- 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
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.