| Revision Date: | 2014-11-10 | Version: | 1 | | Title: | CVE-2014-3690 on Ubuntu 16.04 LTS (xenial) - medium. | | Description: | arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel before 3.17.2 on Intel processors does not ensure that the value in the CR4 control register remains the same after a VM entry, which allows host OS users to kill arbitrary processes or cause a denial of service (system disruption) by leveraging /dev/kvm access, as demonstrated by PR_SET_TSC prctl calls within a modified copy of QEMU. A flaw was discovered in how the Linux kernel's KVM (Kernel Virtual Machine) subsystem handles the CR4 control register at VM entry on Intel processors. A local host OS user can exploit this to cause a denial of service (kill arbitrary processes, or system disruption) by leveraging /dev/kvm access.
| | Family: | unix | Class: | vulnerability | | Status: | | Reference(s): | CVE-2014-3690
| | Platform(s): | Ubuntu 16.04 LTS
| Product(s): | | | Definition Synopsis | | Ubuntu 16.04 LTS (xenial) is installed. AND Package Information
NOT While related to the CVE in some way, the 'linux' package in xenial is not affected (note: '4.2.0-16.19').
OR NOT While related to the CVE in some way, the 'linux-aws' package in xenial is not affected (note: '4.4.0-1001.10').
OR While related to the CVE in some way, a decision has been made to ignore it (note: 'abandoned').
OR NOT While related to the CVE in some way, the 'linux-gke' package in xenial is not affected (note: '4.4.0-1003.3').
OR While related to the CVE in some way, a decision has been made to ignore it (note: 'abandoned').
OR NOT While related to the CVE in some way, the 'linux-hwe' package in xenial is not affected (note: '4.8.0-36.36~16.04.1').
OR NOT While related to the CVE in some way, the 'linux-hwe-edge' package in xenial is not affected (note: '4.8.0-36.36~16.04.1').
OR While related to the CVE in some way, a decision has been made to ignore it (note: 'abandoned').
OR NOT While related to the CVE in some way, the 'linux-raspi2' package in xenial is not affected (note: '4.2.0-1013.19').
OR NOT While related to the CVE in some way, the 'linux-snapdragon' package in xenial is not affected (note: '4.4.0-1012.12').
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