{
    "id": "CVE-2011-1083",
    "published": "2011-04-04 12:27:57",
    "last_modified": "2026-06-16 23:28:40",
    "cvss_score": "4.9",
    "cvss_severity": "MEDIUM",
    "cvss_version": "2.0",
    "cvss_vector": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
    "cwe": "CWE-400",
    "description": "The epoll implementation in the Linux kernel 2.6.37.2 and earlier does not properly traverse a tree of epoll file descriptors, which allows local users to cause a denial of service (CPU consumption) via a crafted application that makes epoll_create and epoll_ctl system calls.",
    "epss_score": "0.00795",
    "epss_percentile": "0.55263",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-10-13 18:17:09",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "linux",
            "product": "linux_kernel"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_desktop"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_workstation"
        },
        {
            "vendor": "suse",
            "product": "linux_enterprise_desktop"
        },
        {
            "vendor": "suse",
            "product": "linux_enterprise_server"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "35403",
            "title": "Linux Kernel 2.6.x - epoll Nested Structures Local Denial of Service",
            "date": "2011-03-02",
            "url": "https://www.exploit-db.com/exploits/35403"
        }
    ],
    "refs_list": [
        "http://article.gmane.org/gmane.linux.kernel/1105744",
        "http://article.gmane.org/gmane.linux.kernel/1105888",
        "http://article.gmane.org/gmane.linux.kernel/1106686",
        "http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html",
        "http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html",
        "http://openwall.com/lists/oss-security/2011/03/02/1",
        "http://openwall.com/lists/oss-security/2011/03/02/2",
        "http://rhn.redhat.com/errata/RHSA-2012-0862.html",
        "http://secunia.com/advisories/43522",
        "http://secunia.com/advisories/48115",
        "http://secunia.com/advisories/48410",
        "http://secunia.com/advisories/48898",
        "http://secunia.com/advisories/48964",
        "http://www.osvdb.org/71265",
        "https://bugzilla.redhat.com/show_bug.cgi?id=681578",
        "http://article.gmane.org/gmane.linux.kernel/1105744",
        "http://article.gmane.org/gmane.linux.kernel/1105888",
        "http://article.gmane.org/gmane.linux.kernel/1106686",
        "http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html",
        "http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html",
        "http://openwall.com/lists/oss-security/2011/03/02/1",
        "http://openwall.com/lists/oss-security/2011/03/02/2",
        "http://rhn.redhat.com/errata/RHSA-2012-0862.html",
        "http://secunia.com/advisories/43522",
        "http://secunia.com/advisories/48115"
    ]
}