{
    "id": "CVE-2017-11176",
    "published": "2017-07-11 23:29:00",
    "last_modified": "2026-06-17 01:01:21",
    "cvss_score": "7.8",
    "cvss_severity": "HIGH",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-416",
    "description": "The mq_notify function in the Linux kernel through 4.11.9 does not set the sock pointer to NULL upon entry into the retry logic. During a user-space close of a Netlink socket, it allows attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact.",
    "epss_score": "0.03815",
    "epss_percentile": "0.89770",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-10-07 18:17:15",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "linux",
            "product": "linux_kernel"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "45553",
            "title": "Linux Kernel < 4.11.8 - 'mq_notify: double sock_put()' Local Privilege Escalation",
            "date": "2018-10-02",
            "url": "https://www.exploit-db.com/exploits/45553"
        }
    ],
    "refs_list": [
        "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f991af3daabaecff34684fd51fac80319d1baad1",
        "http://www.debian.org/security/2017/dsa-3927",
        "http://www.debian.org/security/2017/dsa-3945",
        "http://www.securityfocus.com/bid/99919",
        "https://access.redhat.com/errata/RHSA-2017:2918",
        "https://access.redhat.com/errata/RHSA-2017:2930",
        "https://access.redhat.com/errata/RHSA-2017:2931",
        "https://access.redhat.com/errata/RHSA-2018:0169",
        "https://access.redhat.com/errata/RHSA-2018:3822",
        "https://github.com/torvalds/linux/commit/f991af3daabaecff34684fd51fac80319d1baad1",
        "https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0",
        "https://www.exploit-db.com/exploits/45553/",
        "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f991af3daabaecff34684fd51fac80319d1baad1",
        "http://www.debian.org/security/2017/dsa-3927",
        "http://www.debian.org/security/2017/dsa-3945",
        "http://www.securityfocus.com/bid/99919",
        "https://access.redhat.com/errata/RHSA-2017:2918",
        "https://access.redhat.com/errata/RHSA-2017:2930",
        "https://access.redhat.com/errata/RHSA-2017:2931",
        "https://access.redhat.com/errata/RHSA-2018:0169",
        "https://access.redhat.com/errata/RHSA-2018:3822",
        "https://github.com/torvalds/linux/commit/f991af3daabaecff34684fd51fac80319d1baad1",
        "https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0",
        "https://www.exploit-db.com/exploits/45553/"
    ]
}