Improper Access Control Affecting kernel-rt-trace-devel package, versions <0:3.10.0-862.rt56.804.el7
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Test your applications- Snyk ID SNYK-CENTOS7-KERNELRTTRACEDEVEL-2100489
- published 26 Jul 2021
- disclosed 12 Sep 2017
Introduced: 12 Sep 2017
CVE-2017-12154 Open this link in a new tabHow to fix?
Upgrade Centos:7 kernel-rt-trace-devel to version 0:3.10.0-862.rt56.804.el7 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-trace-devel package and not the kernel-rt-trace-devel package as distributed by Centos.
See How to fix? for Centos:7 relevant fixed versions and status.
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.
References
- http://www.securityfocus.com/bid/100856
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=51aa68e7d57e3217192d88ce90fd5b8ef29ec94f
- https://bugzilla.redhat.com/show_bug.cgi?id=1491224
- https://github.com/torvalds/linux/commit/51aa68e7d57e3217192d88ce90fd5b8ef29ec94f
- https://www.spinics.net/lists/kvm/msg155414.html
- https://access.redhat.com/security/cve/CVE-2017-12154
- http://www.debian.org/security/2017/dsa-3981
- https://access.redhat.com/errata/RHSA-2018:0676
- https://usn.ubuntu.com/3698-1/
- https://usn.ubuntu.com/3698-2/