{
    "id": "CVE-2011-4613",
    "published": "2014-02-05 19:55:28",
    "last_modified": "2026-06-16 23:35:08",
    "cvss_score": "4.6",
    "cvss_severity": "MEDIUM",
    "cvss_version": "2.0",
    "cvss_vector": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
    "cwe": "CWE-264",
    "description": "The X.Org X wrapper (xserver-wrapper.c) in Debian GNU/Linux and Ubuntu Linux does not properly verify the TTY of a user who is starting X, which allows local users to bypass intended access restrictions by associating stdin with a file that is misinterpreted as the console TTY.",
    "epss_score": "0.00862",
    "epss_percentile": "0.57484",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-10-13 18:17:10",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "canonical",
            "product": "ubuntu_linux"
        },
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "ubuntu",
            "product": "linux"
        },
        {
            "vendor": "x.org",
            "product": "x_server"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "18040",
            "title": "X.Org xorg 1.4 < 1.11.2 - File Permission Change",
            "date": "2011-10-28",
            "url": "https://www.exploit-db.com/exploits/18040"
        }
    ],
    "refs_list": [
        "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=652249",
        "http://www.debian.org/security/2011/dsa-2364",
        "http://www.ubuntu.com/usn/USN-1349-1",
        "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=652249",
        "http://www.debian.org/security/2011/dsa-2364",
        "http://www.ubuntu.com/usn/USN-1349-1"
    ]
}