CVE-2014-3690

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    CVE-2014-3690

    Published: 10 Nov 2014Last Modified: 10 Apr 2026

    Summary:

    Details: 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.

    References: http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00035.html, http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html, http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html, http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html, http://rhn.redhat.com/errata/RHSA-2015-0290.html, http://rhn.redhat.com/errata/RHSA-2015-0782.html, http://rhn.redhat.com/errata/RHSA-2015-0864.html, http://secunia.com/advisories/60174, http://www.debian.org/security/2014/dsa-3060, http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.17.2, http://www.mandriva.com/security/advisories?name=MDVSA-2015:058, http://www.openwall.com/lists/oss-security/2014/10/21/4, http://www.openwall.com/lists/oss-security/2014/10/29/7, http://www.securityfocus.com/bid/70691, http://www.ubuntu.com/usn/USN-2417-1, http://www.ubuntu.com/usn/USN-2418-1, http://www.ubuntu.com/usn/USN-2419-1, http://www.ubuntu.com/usn/USN-2420-1, http://www.ubuntu.com/usn/USN-2421-1, https://bugzilla.redhat.com/show_bug.cgi?id=1153322, https://github.com/torvalds/linux/commit/d974baa398f34393db76be45f7d4d04fbdbb4a0a, http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00035.html, http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html, http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html, http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html, http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.17.2, http://www.openwall.com/lists/oss-security/2014/10/21/4, http://www.openwall.com/lists/oss-security/2014/10/29/7, http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.17.2, http://www.openwall.com/lists/oss-security/2014/10/21/4, http://www.openwall.com/lists/oss-security/2014/10/29/7, https://bugzilla.redhat.com/show_bug.cgi?id=1153322, https://github.com/torvalds/linux/commit/d974baa398f34393db76be45f7d4d04fbdbb4a0a, https://bugzilla.redhat.com/show_bug.cgi?id=1153322, http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d974baa398f34393db76be45f7d4d04fbdbb4a0a

    Affected packages

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High