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    CVE-2016-7422

    The virtqueue_map_desc function in hw/virtio/virtio.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) via a large I/O descriptor buffer length value.

    Published:Sep 15, 2016
    Last Modified:Apr 12, 2025
    EPS:Dec 10, 2016
    EPSS Score:0.00094
    CVSS Score:6

    Affected Products

    Vendor
    Opensuse
    Product
    Leap
    Vendor
    Qemu
    Product
    Qemu
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Openstack
    Vendor
    Redhat
    Product
    Virtualization

    Exploits

    No exploit reference

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    References

    http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=973e7170dddefb491a48df5cba33b2ae151013a0
    http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html
    http://www.openwall.com/lists/oss-security/2016/09/16/10
    http://www.openwall.com/lists/oss-security/2016/09/16/4
    http://www.securityfocus.com/bid/92996
    https://access.redhat.com/errata/RHSA-2017:2392
    https://access.redhat.com/errata/RHSA-2017:2408
    https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg03546.html
    https://security.gentoo.org/glsa/201609-01
    http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=973e7170dddefb491a48df5cba33b2ae151013a0
    http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html
    http://www.openwall.com/lists/oss-security/2016/09/16/10
    http://www.openwall.com/lists/oss-security/2016/09/16/4
    http://www.securityfocus.com/bid/92996
    https://access.redhat.com/errata/RHSA-2017:2392
    https://access.redhat.com/errata/RHSA-2017:2408
    https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg03546.html
    https://security.gentoo.org/glsa/201609-01

    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