CVE-2014-3690
MEDIUMCVSS 5.5/10EPSS 0.52%
Last modified
CVE-2014-3690 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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.. EPSS estimates a 0.52% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | < 3.17.2 | — |
| Novell | Suse Linux Enterprise Desktop | 12.0 | — |
| Novell | Suse Linux Enterprise Server | 11 | Sp2 |
| Novell | Suse Linux Enterprise Server | 12.0 | — |
| Opensuse | Evergreen | 11.4 | — |
| Suse | Linux Enterprise Real Time Extension | 11 | Sp3 |
| 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 | — |
| Canonical | Ubuntu Linux | 14.04 | — |
| Canonical | Ubuntu Linux | 14.10 | — |
References
- http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00035.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.htmlMailing List, Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-0290.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-0782.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-0864.htmlThird Party Advisory
- http://secunia.com/advisories/60174Broken Link
- http://www.debian.org/security/2014/dsa-3060Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.17.2Mailing List, Patch, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2014/10/21/4Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2014/10/29/7Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/70691Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-2417-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2418-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2419-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2420-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2421-1Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1153322Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/d974baa398f34393db76be45f7d4d04fbdbb4a0aPatch, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00035.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.htmlMailing List, Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-0290.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-0782.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-0864.htmlThird Party Advisory
- http://secunia.com/advisories/60174Broken Link
- http://www.debian.org/security/2014/dsa-3060Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.17.2Mailing List, Patch, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2014/10/21/4Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2014/10/29/7Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/70691Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-2417-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2418-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2419-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2420-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2421-1Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1153322Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/d974baa398f34393db76be45f7d4d04fbdbb4a0aPatch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2014-3690?
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.
How severe is CVE-2014-3690?
CVE-2014-3690 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.52% probability of exploitation in the next 30 days.
How do I fix CVE-2014-3690?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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