{
    "id": "CVE-2017-1000373",
    "published": "2017-06-19 16:29:00",
    "last_modified": "2026-06-17 00:59:03",
    "cvss_score": "6.5",
    "cvss_severity": "MEDIUM",
    "cvss_version": "3.0",
    "cvss_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
    "cwe": "CWE-400",
    "description": "The OpenBSD qsort() function is recursive, and not randomized, an attacker can construct a pathological input array of N elements that causes qsort() to deterministically recurse N/4 times. This allows attackers to consume arbitrary amounts of stack memory and manipulate stack memory to assist in arbitrary code execution attacks. This affects OpenBSD 6.1 and possibly earlier versions.",
    "epss_score": "0.13380",
    "epss_percentile": "0.96292",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-27 18:17:17",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "openbsd",
            "product": "openbsd"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "42271",
            "title": "OpenBSD - 'at Stack Clash' Local Privilege Escalation",
            "date": "2017-06-28",
            "url": "https://www.exploit-db.com/exploits/42271"
        }
    ],
    "refs_list": [
        "http://www.securityfocus.com/bid/99177",
        "http://www.securitytracker.com/id/1039427",
        "https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/lib/libc/stdlib/qsort.c?rev=1.15&content-type=text/x-cvsweb-markup",
        "https://support.apple.com/HT208112",
        "https://support.apple.com/HT208113",
        "https://support.apple.com/HT208115",
        "https://support.apple.com/HT208144",
        "https://www.exploit-db.com/exploits/42271/",
        "https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt",
        "http://www.securityfocus.com/bid/99177",
        "http://www.securitytracker.com/id/1039427",
        "https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/lib/libc/stdlib/qsort.c?rev=1.15&content-type=text/x-cvsweb-markup",
        "https://support.apple.com/HT208112",
        "https://support.apple.com/HT208113",
        "https://support.apple.com/HT208115",
        "https://support.apple.com/HT208144",
        "https://www.exploit-db.com/exploits/42271/",
        "https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt"
    ]
}