vulnerability
Red Hat: CVE-2017-12154: Important: kernel-rt security, bug fix, and enhancement update (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:L/AC:L/Au:N/C:P/I:P/A:N) | Sep 20, 2017 | Apr 11, 2018 | Feb 14, 2023 |
Severity
4
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:N)
Published
Sep 20, 2017
Added
Apr 11, 2018
Modified
Feb 14, 2023
Description
The prepare_vmcs02 function in arch/x86/kvm/vmx.c in the Linux kernel through 4.13.3 does not ensure that the "CR8-load exiting" and "CR8-store exiting" L0 vmcs02 controls exist in cases where L1 omits the "use TPR shadow" vmcs12 control, which allows KVM L2 guest OS users to obtain read and write access to the hardware CR8 register.
Solutions
redhat-upgrade-kernelredhat-upgrade-kernel-rt
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