Bug 2188468 (CVE-2023-30456) - CVE-2023-30456 kernel: KVM: nVMX: missing consistency checks for CR0 and CR4
Summary: CVE-2023-30456 kernel: KVM: nVMX: missing consistency checks for CR0 and CR4
Keywords:
Status: NEW
Alias: CVE-2023-30456
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Nobody
QA Contact:
URL:
Whiteboard:
Depends On: 2190255 2190256 2190257 2190258
Blocks: 2185529
TreeView+ depends on / blocked
 
Reported: 2023-04-20 20:50 UTC by Pedro Sampaio
Modified: 2024-10-12 08:28 UTC (History)
44 users (show)

Fixed In Version: kernel 6.3-rc3
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2023:6835 0 None None None 2023-11-09 07:10:54 UTC
Red Hat Product Errata RHBA-2023:7268 0 None None None 2023-11-15 18:25:25 UTC
Red Hat Product Errata RHBA-2023:7328 0 None None None 2023-11-16 11:38:58 UTC
Red Hat Product Errata RHBA-2023:7338 0 None None None 2023-11-16 18:04:18 UTC
Red Hat Product Errata RHBA-2023:7343 0 None None None 2023-11-20 01:58:48 UTC
Red Hat Product Errata RHBA-2023:7346 0 None None None 2023-11-20 09:25:48 UTC
Red Hat Product Errata RHSA-2023:6583 0 None None None 2023-11-07 08:20:25 UTC
Red Hat Product Errata RHSA-2023:6901 0 None None None 2023-11-14 15:15:28 UTC
Red Hat Product Errata RHSA-2023:7077 0 None None None 2023-11-14 15:20:49 UTC
Red Hat Product Errata RHSA-2024:0930 0 None None None 2024-02-21 00:27:36 UTC
Red Hat Product Errata RHSA-2024:1404 0 None None None 2024-03-19 17:27:20 UTC

Description Pedro Sampaio 2023-04-20 20:50:19 UTC 
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.

https://github.com/torvalds/linux/commit/112e66017bff7f2837030f34c2bc19501e9212d5
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.8
Comment 3 errata-xmlrpc 2023-11-07 08:20:21 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:6583 https://access.redhat.com/errata/RHSA-2023:6583
Comment 4 errata-xmlrpc 2023-11-14 15:15:24 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:6901 https://access.redhat.com/errata/RHSA-2023:6901
Comment 5 errata-xmlrpc 2023-11-14 15:20:46 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:7077 https://access.redhat.com/errata/RHSA-2023:7077
Comment 9 errata-xmlrpc 2024-02-21 00:27:32 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Extended Update Support

Via RHSA-2024:0930 https://access.redhat.com/errata/RHSA-2024:0930
Comment 11 errata-xmlrpc 2024-03-19 17:27:16 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Extended Update Support

Via RHSA-2024:1404 https://access.redhat.com/errata/RHSA-2024:1404
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