CVE-2014-3690

kernel: kvm: vmx: invalid host cr4 handling across vm entries

Published Nov 10, 2014 CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-3060-1 linux security update
EUVD EUVD EUVD-2014-3636 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.
Ubuntu USN Ubuntu USN USN-2417-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-2418-1 Linux kernel (OMAP4) vulnerabilities
Ubuntu USN Ubuntu USN USN-2419-1 Linux kernel (Trusty HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-2420-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-2421-1 Linux kernel vulnerabilities
History

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