{
    "id": "CVE-2019-6974",
    "published": "2019-02-15 15:29:00",
    "last_modified": "2026-06-17 02:39:51",
    "cvss_score": "8.1",
    "cvss_severity": "HIGH",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-362",
    "description": "In the Linux kernel before 4.20.8, kvm_ioctl_create_device in virt/kvm/kvm_main.c mishandles reference counting because of a race condition, leading to a use-after-free.",
    "epss_score": "0.16523",
    "epss_percentile": "0.96904",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-30 18:17:23",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "canonical",
            "product": "ubuntu_linux"
        },
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "f5",
            "product": "big-ip_access_policy_manager"
        },
        {
            "vendor": "f5",
            "product": "big-ip_advanced_firewall_manager"
        },
        {
            "vendor": "f5",
            "product": "big-ip_analytics"
        },
        {
            "vendor": "f5",
            "product": "big-ip_application_acceleration_manager"
        },
        {
            "vendor": "f5",
            "product": "big-ip_application_security_manager"
        },
        {
            "vendor": "f5",
            "product": "big-ip_edge_gateway"
        },
        {
            "vendor": "f5",
            "product": "big-ip_fraud_protection_service"
        },
        {
            "vendor": "f5",
            "product": "big-ip_global_traffic_manager"
        },
        {
            "vendor": "f5",
            "product": "big-ip_link_controller"
        },
        {
            "vendor": "f5",
            "product": "big-ip_local_traffic_manager"
        },
        {
            "vendor": "f5",
            "product": "big-ip_policy_enforcement_manager"
        },
        {
            "vendor": "f5",
            "product": "big-ip_webaccelerator"
        },
        {
            "vendor": "linux",
            "product": "linux_kernel"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_desktop"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_eus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server_aus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server_eus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server_tus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_workstation"
        },
        {
            "vendor": "redhat",
            "product": "openshift_container_platform"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "46388",
            "title": "Linux - 'kvm_ioctl_create_device()' NULL Pointer Dereference",
            "date": "2019-02-15",
            "url": "https://www.exploit-db.com/exploits/46388"
        }
    ],
    "refs_list": [
        "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cfa39381173d5f969daf43582c95ad679189cbc9",
        "http://www.securityfocus.com/bid/107127",
        "https://access.redhat.com/errata/RHBA-2019:0959",
        "https://access.redhat.com/errata/RHSA-2019:0818",
        "https://access.redhat.com/errata/RHSA-2019:0833",
        "https://access.redhat.com/errata/RHSA-2019:2809",
        "https://access.redhat.com/errata/RHSA-2019:3967",
        "https://access.redhat.com/errata/RHSA-2020:0103",
        "https://bugs.chromium.org/p/project-zero/issues/detail?id=1765",
        "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.99",
        "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.21",
        "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.8",
        "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.156",
        "https://github.com/torvalds/linux/commit/cfa39381173d5f969daf43582c95ad679189cbc9",
        "https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html",
        "https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html",
        "https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html",
        "https://support.f5.com/csp/article/K11186236",
        "https://support.f5.com/csp/article/K11186236?utm_source=f5support&amp%3Butm_medium=RSS",
        "https://usn.ubuntu.com/3930-1/",
        "https://usn.ubuntu.com/3930-2/",
        "https://usn.ubuntu.com/3931-1/",
        "https://usn.ubuntu.com/3931-2/",
        "https://usn.ubuntu.com/3932-1/",
        "https://usn.ubuntu.com/3932-2/"
    ]
}