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    CVE-2012-4461

    The KVM subsystem in the Linux kernel before 3.6.9, when running on hosts that use qemu userspace without XSAVE, allows local users to cause a denial of service (kernel OOPS) by using the KVM_SET_SREGS ioctl to set the X86_CR4_OSXSAVE bit in the guest cr4 register, then calling the KVM_RUN ioctl.

    Published:Nov 6, 2012
    Last Modified:Apr 11, 2025
    EPS:Jan 22, 2013
    EPSS Score:0.00089
    CVSS Score:1.9

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Eus

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://article.gmane.org/gmane.comp.emulators.kvm.devel/100742
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git%3Ba=commit%3Bh=6d1068b3a98519247d8ba4ec85cd40ac136dbdf9
    http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html
    http://rhn.redhat.com/errata/RHSA-2013-0223.html
    http://rhn.redhat.com/errata/RHSA-2013-0882.html
    http://secunia.com/advisories/51160
    http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.6.9
    http://www.openwall.com/lists/oss-security/2012/11/06/14
    http://www.securityfocus.com/bid/56414
    https://bugzilla.redhat.com/show_bug.cgi?id=862900
    https://www.suse.com/support/update/announcement/2012/suse-su-20121679-1.html
    http://article.gmane.org/gmane.comp.emulators.kvm.devel/100742
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git%3Ba=commit%3Bh=6d1068b3a98519247d8ba4ec85cd40ac136dbdf9
    http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html
    http://rhn.redhat.com/errata/RHSA-2013-0223.html
    http://rhn.redhat.com/errata/RHSA-2013-0882.html
    http://secunia.com/advisories/51160
    http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.6.9
    http://www.openwall.com/lists/oss-security/2012/11/06/14
    http://www.securityfocus.com/bid/56414
    https://bugzilla.redhat.com/show_bug.cgi?id=862900
    https://www.suse.com/support/update/announcement/2012/suse-su-20121679-1.html

    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