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Fixed

LIN5-23763 : Security Advisory - linux - CVE-2017-12154

Created: Sep 26, 2017    Updated: May 29, 2018
Resolved Date: Oct 25, 2017
Found In Version: 5.0.1.41
Fix Version: 5.0.1.42
Severity: Standard
Applicable for: Wind River Linux 5
Component/s: Kernel

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.

https://nvd.nist.gov/vuln/detail/CVE-2017-12154

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