{
    "id": "CVE-2016-4997",
    "published": "2016-07-03 21:59:16",
    "last_modified": "2026-06-17 00:48:34",
    "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-264",
    "description": "The compat IPT_SO_SET_REPLACE and IP6T_SO_SET_REPLACE setsockopt implementations in the netfilter subsystem in the Linux kernel before 4.6.3 allow local users to gain privileges or cause a denial of service (memory corruption) by leveraging in-container root access to provide a crafted offset value that triggers an unintended decrement.",
    "epss_score": "0.06979",
    "epss_percentile": "0.93956",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-10-05 18:17:14",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "canonical",
            "product": "ubuntu_linux"
        },
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "linux",
            "product": "linux_kernel"
        },
        {
            "vendor": "novell",
            "product": "suse_linux_enterprise_desktop"
        },
        {
            "vendor": "novell",
            "product": "suse_linux_enterprise_live_patching"
        },
        {
            "vendor": "novell",
            "product": "suse_linux_enterprise_module_for_public_cloud"
        },
        {
            "vendor": "novell",
            "product": "suse_linux_enterprise_real_time_extension"
        },
        {
            "vendor": "novell",
            "product": "suse_linux_enterprise_server"
        },
        {
            "vendor": "novell",
            "product": "suse_linux_enterprise_software_development_kit"
        },
        {
            "vendor": "novell",
            "product": "suse_linux_enterprise_workstation_extension"
        },
        {
            "vendor": "oracle",
            "product": "linux"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "40489",
            "title": "Linux Kernel 4.6.2 (Ubuntu 16.04.1) - 'IP6T_SO_SET_REPLACE' Local Privilege Escalation",
            "date": "2016-10-10",
            "url": "https://www.exploit-db.com/exploits/40489"
        },
        {
            "source": "exploit-db",
            "ref_id": "40435",
            "title": "Linux Kernel 4.6.3 (x86) - 'Netfilter' Local Privilege Escalation (Metasploit)",
            "date": "2016-09-27",
            "url": "https://www.exploit-db.com/exploits/40435"
        }
    ],
    "refs_list": [
        "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce683e5f9d045e5d67d1312a42b359cb2ab2a13c",
        "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00060.html",
        "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00061.html",
        "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html",
        "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html",
        "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00027.html",
        "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html",
        "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00048.html",
        "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00050.html",
        "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00051.html",
        "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00052.html",
        "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00053.html",
        "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00054.html",
        "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html",
        "http://rhn.redhat.com/errata/RHSA-2016-1847.html",
        "http://rhn.redhat.com/errata/RHSA-2016-1875.html",
        "http://rhn.redhat.com/errata/RHSA-2016-1883.html",
        "http://www.debian.org/security/2016/dsa-3607",
        "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3",
        "http://www.openwall.com/lists/oss-security/2016/06/24/5",
        "http://www.openwall.com/lists/oss-security/2016/09/29/10",
        "http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html",
        "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html",
        "http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html",
        "http://www.securityfocus.com/bid/91451"
    ]
}