CVE-2014-3690
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedNov 10, 2014
First seenNov 10, 2014
How to fix
Update
- linux linux_kernel3.17.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 3.17.2 | 3.17.2 |
| novell suse_linux_enterprise_desktop | 12.0 | — |
| novell suse_linux_enterprise_server | 11, 12.0 | — |
| opensuse evergreen | 11.4 | — |
| suse linux_enterprise_real_time_extension | 11 | — |
| suse linux_enterprise_software_development_kit | 12 | — |
| suse linux_enterprise_workstation_extension | 12 | — |
| redhat enterprise_linux | 5.0 | — |
| debian debian_linux | 7.0 | — |
| canonical ubuntu_linux | 12.04, 14.04, 14.10 | — |
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