{
    "id": "CVE-2009-3043",
    "published": "2009-09-02 17:30:00",
    "last_modified": "2026-06-16 23:10:47",
    "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-399",
    "description": "The tty_ldisc_hangup function in drivers/char/tty_ldisc.c in the Linux kernel 2.6.31-rc before 2.6.31-rc8 allows local users to cause a denial of service (system crash, sometimes preceded by a NULL pointer dereference) or possibly gain privileges via certain pseudo-terminal I/O activity, as demonstrated by KernelTtyTest.c.",
    "epss_score": "0.00852",
    "epss_percentile": "0.57160",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-10-13 18:17:08",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "linux",
            "product": "linux_kernel"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "33193",
            "title": "Linux Kernel 2.6.x - 'drivers/char/tty_ldisc.c' Null Pointer Dereference Denial of Service",
            "date": "2009-08-19",
            "url": "https://www.exploit-db.com/exploits/33193"
        }
    ],
    "refs_list": [
        "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=5c58ceff103d8a654f24769bb1baaf84a841b0cc",
        "http://lkml.org/lkml/2009/8/20/21",
        "http://lkml.org/lkml/2009/8/20/27",
        "http://lkml.org/lkml/2009/8/20/68",
        "http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc8",
        "http://www.openwall.com/lists/oss-security/2009/08/31/1",
        "http://www.openwall.com/lists/oss-security/2009/09/03/6",
        "http://www.openwall.com/lists/oss-security/2009/09/03/7",
        "http://www.securityfocus.com/bid/36191",
        "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=5c58ceff103d8a654f24769bb1baaf84a841b0cc",
        "http://lkml.org/lkml/2009/8/20/21",
        "http://lkml.org/lkml/2009/8/20/27",
        "http://lkml.org/lkml/2009/8/20/68",
        "http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc8",
        "http://www.openwall.com/lists/oss-security/2009/08/31/1",
        "http://www.openwall.com/lists/oss-security/2009/09/03/6",
        "http://www.openwall.com/lists/oss-security/2009/09/03/7",
        "http://www.securityfocus.com/bid/36191"
    ]
}